Files
maszyna/opengl33renderer.cpp
2020-10-19 15:04:03 +02:00

4656 lines
147 KiB
C++

/*
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
*/
#include "stdafx.h"
#include "opengl33renderer.h"
#include "color.h"
#include "Globals.h"
#include "Timer.h"
#include "Train.h"
#include "Camera.h"
#include "simulation.h"
#include "Logs.h"
#include "utilities.h"
#include "simulationtime.h"
#include "application.h"
#include "AnimModel.h"
#include "opengl33geometrybank.h"
//#define EU07_DEBUG_OPENGL
int const EU07_PICKBUFFERSIZE{ 1024 }; // size of (square) textures bound with the pick framebuffer
int const EU07_REFLECTIONFIDELITYOFFSET { 250 }; // artificial increase of range for reflection pass detail reduction
void GLAPIENTRY
ErrorCallback( GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void* userParam ) {
/*
auto const typestring {
type == GL_DEBUG_TYPE_ERROR ? "error" :
type == GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR ? "deprecated behavior" :
type == GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR ? "undefined behavior" :
type == GL_DEBUG_TYPE_PORTABILITY ? "portability" :
type == GL_DEBUG_TYPE_PERFORMANCE ? "performance" :
type == GL_DEBUG_TYPE_OTHER ? "other" :
"unknown" };
*/
auto const severitystring {
severity == GL_DEBUG_SEVERITY_HIGH ? "high severity" :
severity == GL_DEBUG_SEVERITY_MEDIUM ? "medium severity" :
severity == GL_DEBUG_SEVERITY_LOW ? "low severity" :
severity == GL_DEBUG_SEVERITY_NOTIFICATION ? "notification" :
"unknown" };
ErrorLog(
"bad gfx code: " + std::string( type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR ** " : "" )
+ to_hex_str( id )
+ " (" + severitystring + ") "
+ message );
}
bool opengl33_renderer::Init(GLFWwindow *Window)
{
#ifdef EU07_DEBUG_OPENGL
if( GLAD_GL_KHR_debug ) {
glEnable( GL_DEBUG_OUTPUT );
glEnable( GL_DEBUG_OUTPUT_SYNCHRONOUS );
glDebugMessageControl( GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_NOTIFICATION, 0, nullptr, GL_FALSE );
glDebugMessageControl( GL_DONT_CARE, GL_DEBUG_TYPE_PERFORMANCE, GL_DONT_CARE, 0, nullptr, GL_FALSE );
glDebugMessageCallback( ErrorCallback, 0 );
}
#endif
if (!Init_caps())
return false;
WriteLog("preparing renderer..");
OpenGLMatrices.upload() = false; // set matrix stack in virtual mode
m_window = Window;
gl::glsl_common_setup();
if (true == Global.ScaleSpecularValues)
{
m_specularopaquescalefactor = 0.25f;
m_speculartranslucentscalefactor = 1.5f;
}
// rgb value for 5780 kelvin
Global.DayLight.diffuse[0] = 255.0f / 255.0f;
Global.DayLight.diffuse[1] = 242.0f / 255.0f;
Global.DayLight.diffuse[2] = 231.0f / 255.0f;
Global.DayLight.is_directional = true;
m_sunlight.id = opengl33_renderer::sunlight;
// create dynamic light pool
for (int idx = 0; idx < Global.DynamicLightCount; ++idx)
{
opengl33_light light;
light.id = 1 + idx;
light.is_directional = false;
m_lights.emplace_back(light);
}
// preload some common textures
WriteLog("Loading common gfx data...");
m_glaretexture = Fetch_Texture("fx/lightglare");
m_suntexture = Fetch_Texture("fx/sun");
m_moontexture = Fetch_Texture("fx/moon");
m_smoketexture = Fetch_Texture("fx/smoke");
m_headlightstexture = Fetch_Texture("fx/headlights:st");
WriteLog("...gfx data pre-loading done");
// prepare basic geometry chunks
float const size = 2.5f / 2.0f;
auto const geometrybank = Create_Bank();
gfx::vertex_array billboard_array{
{{-size, size, 0.f}, glm::vec3(), {1.f, 1.f}}, {{size, size, 0.f}, glm::vec3(), {0.f, 1.f}}, {{-size, -size, 0.f}, glm::vec3(), {1.f, 0.f}}, {{size, -size, 0.f}, glm::vec3(), {0.f, 0.f}}};
m_billboardgeometry = m_geometry.create_chunk(billboard_array, geometrybank, GL_TRIANGLE_STRIP);
m_empty_vao = std::make_unique<gl::vao>();
try
{
m_vertex_shader = std::make_unique<gl::shader>("vertex.vert");
m_line_shader = make_shader("traction.vert", "traction.frag");
m_freespot_shader = make_shader("freespot.vert", "freespot.frag");
m_shadow_shader = make_shader("simpleuv.vert", "shadowmap.frag");
m_alpha_shadow_shader = make_shader("simpleuv.vert", "alphashadowmap.frag");
m_pick_shader = make_shader("vertexonly.vert", "pick.frag");
m_pick_surface_shader = make_shader("simpleuv.vert", "pick_surface.frag");
m_billboard_shader = make_shader("simpleuv.vert", "billboard.frag");
m_celestial_shader = make_shader("celestial.vert", "celestial.frag");
if (Global.gfx_usegles)
m_depth_pointer_shader = make_shader("quad.vert", "gles_depthpointer.frag");
m_invalid_material = Fetch_Material("invalid");
}
catch (gl::shader_exception const &e)
{
ErrorLog("invalid shader: " + std::string(e.what()));
return false;
}
scene_ubo = std::make_unique<gl::ubo>(sizeof(gl::scene_ubs), 0);
model_ubo = std::make_unique<gl::ubo>(sizeof(gl::model_ubs), 1, GL_STREAM_DRAW);
light_ubo = std::make_unique<gl::ubo>(sizeof(gl::light_ubs), 2);
// better initialize with 0 to not crash driver/whole system
// when we forget
memset(&light_ubs, 0, sizeof(light_ubs));
memset(&model_ubs, 0, sizeof(model_ubs));
memset(&scene_ubs, 0, sizeof(scene_ubs));
light_ubo->update(light_ubs);
model_ubo->update(model_ubs);
scene_ubo->update(scene_ubs);
int samples = 1 << Global.iMultisampling;
if (!Global.gfx_usegles && samples > 1)
glEnable(GL_MULTISAMPLE);
m_pfx_motionblur = std::make_unique<gl::postfx>("motionblur");
m_pfx_tonemapping = std::make_unique<gl::postfx>("tonemapping");
m_pfx_chromaticaberration = std::make_unique<gl::postfx>( "chromaticaberration" );
m_empty_cubemap = std::make_unique<gl::cubemap>();
m_empty_cubemap->alloc(Global.gfx_format_color, 16, 16, GL_RGB, GL_FLOAT);
m_viewports.push_back(std::make_unique<viewport_config>());
viewport_config &default_viewport = *m_viewports.front().get();
default_viewport.width = Global.gfx_framebuffer_width;
default_viewport.height = Global.gfx_framebuffer_height;
default_viewport.main = true;
default_viewport.window = m_window;
default_viewport.draw_range = 1.0f;
if (Global.vr)
vr = vr_interface_factory::get_instance()->create(Global.vr_backend);
if (vr) {
glm::ivec2 target_size = vr->get_target_size();
WriteLog("using vr rendertarget: " + glm::to_string(target_size));
// hijack main window for left eye
default_viewport.width = target_size.x;
default_viewport.height = target_size.y;
default_viewport.custom_backbuffer = true;
default_viewport.proj_type = viewport_config::vr_left;
// create right eye viewport
m_viewports.push_back(std::make_unique<viewport_config>());
m_viewports.back()->width = target_size.x;
m_viewports.back()->height = target_size.y;
m_viewports.back()->window = m_window; // we can reuse context
m_viewports.back()->real_window = false; // but don't draw anything to it
m_viewports.back()->custom_backbuffer = true;
m_viewports.back()->proj_type = viewport_config::vr_right;
m_viewports.back()->draw_range = 1.0f;
if (!init_viewport(*m_viewports.back()))
return false;
}
if (!init_viewport(default_viewport))
return false;
glfwMakeContextCurrent(m_window);
gl::buffer::unbind();
if (Global.gfx_shadowmap_enabled)
{
m_shadow_fb = std::make_unique<gl::framebuffer>();
m_shadow_tex = std::make_unique<opengl_texture>();
m_shadow_tex->alloc_rendertarget(Global.gfx_format_depth, GL_DEPTH_COMPONENT, m_shadowbuffersize, m_shadowbuffersize, m_shadowpass.size());
m_shadow_fb->attach(*m_shadow_tex, GL_DEPTH_ATTACHMENT, 0);
m_shadow_fb->setup_drawing(0);
if( !m_shadow_fb->is_complete() ) {
ErrorLog( "shadow framebuffer setup failed" );
return false;
}
WriteLog("shadows enabled");
}
if (Global.gfx_envmap_enabled)
{
m_env_rb = std::make_unique<gl::renderbuffer>();
m_env_rb->alloc(Global.gfx_format_depth, gl::ENVMAP_SIZE, gl::ENVMAP_SIZE);
m_env_tex = std::make_unique<gl::cubemap>();
m_env_tex->alloc(Global.gfx_format_color, gl::ENVMAP_SIZE, gl::ENVMAP_SIZE, GL_RGB, GL_FLOAT);
m_env_fb = std::make_unique<gl::framebuffer>();
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
for (int i = 0; i < 6; i++)
{
m_env_fb->attach(*m_empty_cubemap, i, GL_COLOR_ATTACHMENT0);
m_env_fb->clear(GL_COLOR_BUFFER_BIT);
}
m_env_fb->detach(GL_COLOR_ATTACHMENT0);
m_env_fb->attach(*m_env_rb, GL_DEPTH_ATTACHMENT);
WriteLog("envmap enabled");
}
m_pick_tex = std::make_unique<opengl_texture>();
m_pick_tex->alloc_rendertarget(GL_RGB8, GL_RGB, EU07_PICKBUFFERSIZE, EU07_PICKBUFFERSIZE);
m_pick_rb = std::make_unique<gl::renderbuffer>();
m_pick_rb->alloc(Global.gfx_format_depth, EU07_PICKBUFFERSIZE, EU07_PICKBUFFERSIZE);
m_pick_fb = std::make_unique<gl::framebuffer>();
m_pick_fb->attach(*m_pick_tex, GL_COLOR_ATTACHMENT0);
m_pick_fb->attach(*m_pick_rb, GL_DEPTH_ATTACHMENT);
if( !m_pick_fb->is_complete() ) {
ErrorLog( "pick framebuffer setup failed" );
return false;
}
m_picking_pbo = std::make_unique<gl::pbo>();
m_picking_node_pbo = std::make_unique<gl::pbo>();
GLenum depth_pointer_format = Global.gfx_format_depth;
if (Global.gfx_skippipeline)
{
gl::framebuffer::unbind();
GLint bits, type;
glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH, GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE, &bits);
glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH, GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE, &type);
if (type == GL_FLOAT && bits == 32)
depth_pointer_format = GL_DEPTH_COMPONENT32F;
else if (bits == 16)
depth_pointer_format = GL_DEPTH_COMPONENT16;
else if (bits == 24)
depth_pointer_format = GL_DEPTH_COMPONENT24;
else if (bits == 32)
depth_pointer_format = GL_DEPTH_COMPONENT32;
}
m_depth_pointer_pbo = std::make_unique<gl::pbo>();
if (!Global.gfx_usegles && Global.iMultisampling)
{
m_depth_pointer_rb = std::make_unique<gl::renderbuffer>();
m_depth_pointer_rb->alloc(depth_pointer_format, 1, 1);
m_depth_pointer_fb = std::make_unique<gl::framebuffer>();
m_depth_pointer_fb->attach(*m_depth_pointer_rb, GL_DEPTH_ATTACHMENT);
m_depth_pointer_fb->setup_drawing(0);
if( !m_depth_pointer_fb->is_complete() ) {
ErrorLog( "depth pointer framebuffer setup failed" );
return false;
}
}
else if (Global.gfx_usegles)
{
m_depth_pointer_tex = std::make_unique<opengl_texture>();
m_depth_pointer_tex->alloc_rendertarget(depth_pointer_format, GL_DEPTH_COMPONENT, Global.gfx_framebuffer_width, Global.gfx_framebuffer_height);
m_depth_pointer_rb = std::make_unique<gl::renderbuffer>();
m_depth_pointer_rb->alloc(GL_R16UI, Global.gfx_framebuffer_width, Global.gfx_framebuffer_height);
m_depth_pointer_fb = std::make_unique<gl::framebuffer>();
m_depth_pointer_fb->attach(*m_depth_pointer_tex, GL_DEPTH_ATTACHMENT);
m_depth_pointer_fb2 = std::make_unique<gl::framebuffer>();
m_depth_pointer_fb2->attach(*m_depth_pointer_rb, GL_COLOR_ATTACHMENT0);
if( !m_depth_pointer_fb->is_complete() ) {
ErrorLog( "depth pointer framebuffer setup failed" );
return false;
}
if( !m_depth_pointer_fb2->is_complete() ) {
ErrorLog( "depth pointer framebuffer2 setup failed" );
return false;
}
}
if (!Global.gfx_usegles) {
m_timequery.emplace(gl::query::TIME_ELAPSED);
m_timequery->begin();
}
WriteLog("picking objects created");
WriteLog("Gfx Renderer: setup complete");
return true;
}
void opengl33_renderer::Shutdown()
{
vr.reset();
}
bool opengl33_renderer::AddViewport(const global_settings::extraviewport_config &conf)
{
viewport_config *vp;
if (conf.monitor == "MAIN") {
vp = m_viewports.front().get();
}
else {
m_viewports.push_back(std::make_unique<viewport_config>());
vp = m_viewports.back().get();
vp->window = Application.window(-1, true, conf.width, conf.height, Application.find_monitor(conf.monitor));
}
vp->width = conf.width;
vp->height = conf.height;
vp->projection = conf.projection;
vp->proj_type = viewport_config::custom;
vp->draw_range = conf.draw_range;
bool ret = init_viewport(*vp);
glfwMakeContextCurrent(m_window);
gl::buffer::unbind();
return ret;
}
bool opengl33_renderer::init_viewport(viewport_config &vp)
{
if (vp.initialized)
return true;
glfwMakeContextCurrent(vp.window);
WriteLog("init viewport: " + std::to_string(vp.width) + " x " + std::to_string(vp.height));
if (vp.real_window)
glfwSwapInterval( Global.VSync ? 1 : 0 );
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glClearColor( 51.0f / 255.f, 102.0f / 255.f, 85.0f / 255.f, 1.f ); // initial background Color
glFrontFace(GL_CCW);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
if (!Global.gfx_usegles)
glClearDepth(0.0f);
else
glClearDepthf(0.0f);
glDepthFunc(GL_GEQUAL);
if (GLAD_GL_ARB_clip_control)
glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE);
else if (GLAD_GL_EXT_clip_control)
glClipControlEXT(GL_LOWER_LEFT_EXT, GL_ZERO_TO_ONE_EXT);
if (!Global.gfx_usegles)
glEnable(GL_PROGRAM_POINT_SIZE);
if (!gl::vao::use_vao)
{
GLuint v;
glGenVertexArrays(1, &v);
glBindVertexArray(v);
}
int samples = 1 << Global.iMultisampling;
model_ubo->bind_uniform();
scene_ubo->bind_uniform();
light_ubo->bind_uniform();
if (!Global.gfx_skippipeline)
{
vp.msaa_rbc = std::make_unique<gl::renderbuffer>();
vp.msaa_rbc->alloc(Global.gfx_format_color, vp.width, vp.height, samples);
vp.msaa_rbd = std::make_unique<gl::renderbuffer>();
vp.msaa_rbd->alloc(Global.gfx_format_depth, vp.width, vp.height, samples);
vp.msaa_fb = std::make_unique<gl::framebuffer>();
vp.msaa_fb->attach(*vp.msaa_rbc, GL_COLOR_ATTACHMENT0);
vp.msaa_fb->attach(*vp.msaa_rbd, GL_DEPTH_ATTACHMENT);
if (Global.gfx_postfx_motionblur_enabled)
{
vp.msaa_rbv = std::make_unique<gl::renderbuffer>();
vp.msaa_rbv->alloc(Global.gfx_postfx_motionblur_format, vp.width, vp.height, samples);
vp.msaa_fb->attach(*vp.msaa_rbv, GL_COLOR_ATTACHMENT1);
vp.main_tex = std::make_unique<opengl_texture>();
vp.main_tex->alloc_rendertarget(Global.gfx_format_color, GL_RGB, vp.width, vp.height, 1, 1, GL_CLAMP_TO_EDGE);
vp.main_fb = std::make_unique<gl::framebuffer>();
vp.main_fb->attach(*vp.main_tex, GL_COLOR_ATTACHMENT0);
vp.main_texv = std::make_unique<opengl_texture>();
vp.main_texv->alloc_rendertarget(Global.gfx_postfx_motionblur_format, GL_RG, vp.width, vp.height);
vp.main_fb->attach(*vp.main_texv, GL_COLOR_ATTACHMENT1);
vp.main_fb->setup_drawing(2);
if( !vp.main_fb->is_complete() ) {
ErrorLog( "main framebuffer setup failed" );
return false;
}
WriteLog("motion blur enabled");
}
if( !vp.msaa_fb->is_complete() ) {
ErrorLog( "msaa framebuffer setup failed" );
return false;
}
vp.main2_tex = std::make_unique<opengl_texture>();
vp.main2_tex->alloc_rendertarget(Global.gfx_format_color, GL_RGB, vp.width, vp.height);
vp.main2_fb = std::make_unique<gl::framebuffer>();
vp.main2_fb->attach(*vp.main2_tex, GL_COLOR_ATTACHMENT0);
if (!vp.main2_fb->is_complete())
return false;
}
if (vp.custom_backbuffer)
{
vp.backbuffer_tex = std::make_unique<opengl_texture>();
vp.backbuffer_tex->alloc_rendertarget(GL_SRGB8, GL_RGB, vp.width, vp.height);
vp.backbuffer_fb = std::make_unique<gl::framebuffer>();
vp.backbuffer_fb->attach(*vp.backbuffer_tex, GL_COLOR_ATTACHMENT0);
if (!vp.backbuffer_fb->is_complete())
return false;
}
vp.initialized = true;
return true;
}
std::unique_ptr<gl::program> opengl33_renderer::make_shader(std::string v, std::string f)
{
gl::shader vert(v);
gl::shader frag(f);
gl::program *prog = new gl::program({vert, frag});
return std::unique_ptr<gl::program>(prog);
}
bool opengl33_renderer::Render()
{
Timer::subsystem.gfx_total.start();
if (!Global.gfx_usegles)
{
std::optional<int64_t> result = m_timequery->result();
if (result) {
m_gllasttime = *result;
m_timequery->begin();
}
}
// fetch simulation data
if (simulation::is_ready)
{
m_sunlight = Global.DayLight;
// quantize sun angle to reduce shadow crawl
auto const quantizationstep{0.004f};
m_sunlight.direction = glm::normalize(quantizationstep * glm::roundEven(m_sunlight.direction * (1.f / quantizationstep)));
}
// generate new frame
opengl_texture::reset_unit_cache();
m_renderpass.draw_mode = rendermode::none; // force setup anew
m_renderpass.draw_stats = debug_stats();
m_geometry.primitives_count() = 0;
if (vr)
vr->begin_frame();
for (auto &viewport : m_viewports) {
Render_pass(*viewport, rendermode::color);
}
glfwMakeContextCurrent(m_window);
gl::buffer::unbind();
m_current_viewport = &(*m_viewports.front());
/*
m_debugtimestext += "cpu: " + to_string(Timer::subsystem.gfx_color.average(), 2) + " ms (" + std::to_string(m_cellqueue.size()) + " sectors)\n" +=
"cpu swap: " + to_string(Timer::subsystem.gfx_swap.average(), 2) + " ms\n" += "uilayer: " + to_string(Timer::subsystem.gfx_gui.average(), 2) + "ms\n" +=
"mainloop total: " + to_string(Timer::subsystem.mainloop_total.average(), 2) + "ms\n";
*/
if (!Global.gfx_usegles)
{
m_timequery->end();
/*
if (m_gllasttime)
m_debugtimestext += "gpu: " + to_string((double)(m_gllasttime / 1000ULL) / 1000.0, 3) + "ms";
*/
}
++m_framestamp;
Timer::subsystem.gfx_total.stop();
// swapbuffers() could unbind current buffers so we prepare for it on our end
gfx::opengl33_vaogeometrybank::reset();
return true; // for now always succeed
}
void opengl33_renderer::SwapBuffers()
{
Timer::subsystem.gfx_swap.start();
for (auto &viewport : m_viewports) {
if (viewport->window && viewport->real_window)
glfwSwapBuffers(viewport->window);
}
if (vr)
vr->finish_frame();
Timer::subsystem.gfx_swap.stop();
m_debugtimestext.clear();
m_debugtimestext =
"cpu frame total: " + to_string( Timer::subsystem.gfx_color.average() + Timer::subsystem.gfx_shadows.average() + Timer::subsystem.gfx_swap.average(), 2 ) + " ms\n"
+ " color: " + to_string( Timer::subsystem.gfx_color.average(), 2 ) + " ms (" + std::to_string( m_cellqueue.size() ) + " sectors)\n";
if( Global.gfx_shadowmap_enabled ) {
m_debugtimestext +=
" shadows: " + to_string( Timer::subsystem.gfx_shadows.average(), 2 ) + " ms\n";
}
m_debugtimestext += " swap: " + to_string( Timer::subsystem.gfx_swap.average(), 2 ) + " ms\n";
if( !Global.gfx_usegles ) {
if (m_gllasttime)
m_debugtimestext += "gpu frame total: " + to_string((double)(m_gllasttime / 1000ULL) / 1000.0, 3) + " ms\n";
}
m_debugtimestext += "uilayer: " + to_string( Timer::subsystem.gfx_gui.average(), 2 ) + " ms\n";
if( DebugModeFlag )
m_debugtimestext += m_textures.info();
debug_stats shadowstats;
for( auto const &shadowpass : m_shadowpass ) {
shadowstats += shadowpass.draw_stats;
}
m_debugstatstext =
"triangles: " + to_string( static_cast<int>(m_geometry.primitives_count()), 7 ) + "\n"
+ "vehicles: " + to_string( m_colorpass.draw_stats.dynamics, 7 ) + " +" + to_string( shadowstats.dynamics, 7 )
+ " =" + to_string( m_colorpass.draw_stats.dynamics + shadowstats.dynamics, 7 ) + "\n"
+ "models: " + to_string( m_colorpass.draw_stats.models, 7 ) + " +" + to_string( shadowstats.models, 7 )
+ " =" + to_string( m_colorpass.draw_stats.models + shadowstats.models, 7 ) + "\n"
+ "drawcalls: " + to_string( m_colorpass.draw_stats.drawcalls, 7 ) + " +" + to_string( shadowstats.drawcalls, 7 )
+ " =" + to_string( m_colorpass.draw_stats.drawcalls + shadowstats.drawcalls, 7 ) + "\n"
+ " submodels:" + to_string( m_colorpass.draw_stats.submodels, 7 ) + " +" + to_string( shadowstats.submodels, 7 )
+ " =" + to_string( m_colorpass.draw_stats.submodels + shadowstats.submodels, 7 ) + "\n"
+ " paths: " + to_string( m_colorpass.draw_stats.paths, 7 ) + " +" + to_string( shadowstats.paths, 7 )
+ " =" + to_string( m_colorpass.draw_stats.paths + shadowstats.paths, 7 ) + "\n"
+ " shapes: " + to_string( m_colorpass.draw_stats.shapes, 7 ) + " +" + to_string( shadowstats.shapes, 7 )
+ " =" + to_string( m_colorpass.draw_stats.shapes + shadowstats.shapes, 7 ) + "\n"
+ " traction: " + to_string( m_colorpass.draw_stats.traction, 7 ) + "\n"
+ " lines: " + to_string( m_colorpass.draw_stats.lines, 7 ) + "\n"
+ "particles: " + to_string( m_colorpass.draw_stats.particles, 7 );
}
void opengl33_renderer::draw_debug_ui()
{
if (!debug_ui_active)
return;
if (ImGui::Begin("headlight config", &debug_ui_active))
{
ImGui::SetWindowSize(ImVec2(0, 0));
headlight_config_s &conf = headlight_config;
ImGui::SliderFloat("in_cutoff", &conf.in_cutoff, 0.9f, 1.1f);
ImGui::SliderFloat("out_cutoff", &conf.out_cutoff, 0.9f, 1.1f);
ImGui::SliderFloat("falloff_linear", &conf.falloff_linear, 0.0f, 1.0f, "%.3f", 2.0f);
ImGui::SliderFloat("falloff_quadratic", &conf.falloff_quadratic, 0.0f, 1.0f, "%.3f", 2.0f);
ImGui::SliderFloat("ambient", &conf.ambient, 0.0f, 3.0f);
ImGui::SliderFloat("intensity", &conf.intensity, 0.0f, 10.0f);
}
ImGui::End();
}
// runs jobs needed to generate graphics for specified render pass
void opengl33_renderer::Render_pass(viewport_config &vp, rendermode const Mode)
{
setup_pass(vp, m_renderpass, Mode);
switch (m_renderpass.draw_mode)
{
case rendermode::color:
{
glDebug("rendermode::color");
glDebug("context switch");
glfwMakeContextCurrent(vp.window);
gl::buffer::unbind();
m_current_viewport = &vp;
if ((!simulation::is_ready) || (Global.gfx_skiprendering))
{
gl::framebuffer::unbind();
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (vp.main)
Application.render_ui();
break;
}
m_colorpass = m_renderpass; // cache pass data
scene_ubs.time = Timer::GetTime();
scene_ubs.projection = OpenGLMatrices.data(GL_PROJECTION);
scene_ubs.inv_view = glm::inverse( glm::mat4{ glm::mat3{ m_colorpass.pass_camera.modelview() } } );
scene_ubo->update(scene_ubs);
scene_ubo->bind_uniform();
if (m_widelines_supported)
glLineWidth(1.0f);
if (!Global.gfx_usegles)
{
if (Global.bWireFrame)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
else
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
setup_shadow_unbind_map();
setup_env_map(nullptr);
if (Global.gfx_shadowmap_enabled && vp.main)
{
glDebug("render shadowmap start");
Timer::subsystem.gfx_shadows.start();
m_renderpass.draw_stats = {};
Render_pass(vp, rendermode::shadows);
m_renderpass = m_colorpass; // restore draw mode. TBD, TODO: render mode stack
Timer::subsystem.gfx_shadows.stop();
glDebug("render shadowmap end");
}
if (Global.gfx_envmap_enabled && vp.main)
{
// potentially update environmental cube map
m_renderpass.draw_stats = {};
if (Render_reflections(vp))
m_renderpass = m_colorpass; // restore color pass settings
setup_env_map(m_env_tex.get());
}
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
setup_drawing(false);
glm::ivec2 target_size(vp.width, vp.height);
if (vp.main && !vp.custom_backbuffer) // TODO: update window sizes also for extra viewports
target_size = glm::ivec2(Global.iWindowWidth, Global.iWindowHeight);
if (!Global.gfx_skippipeline)
{
vp.msaa_fb->bind();
if (Global.gfx_postfx_motionblur_enabled)
vp.msaa_fb->setup_drawing(2);
else
vp.msaa_fb->setup_drawing(1);
glViewport(0, 0, vp.width, vp.height);
vp.msaa_fb->clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
else
{
if (!Global.gfx_usegles && !Global.gfx_shadergamma)
glEnable(GL_FRAMEBUFFER_SRGB);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glViewport(0, 0, target_size.x, target_size.y);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
glEnable(GL_DEPTH_TEST);
Timer::subsystem.gfx_color.start();
setup_matrices();
setup_drawing(true);
m_renderpass.draw_stats = {};
model_ubs.future = glm::mat4();
glm::mat4 future;
if (Global.pCamera.m_owner != nullptr)
{
auto const *vehicle = Global.pCamera.m_owner;
glm::mat4 mv = OpenGLMatrices.data(GL_MODELVIEW);
future = glm::translate(mv, -glm::vec3(vehicle->get_future_movement())) * glm::inverse(mv);
}
Update_Lights( simulation::Lights );
glDebug("render environment");
scene_ubs.projection = OpenGLMatrices.data(GL_PROJECTION);
scene_ubo->update(scene_ubs);
Render(&simulation::Environment);
if( Global.gfx_shadowmap_enabled )
setup_shadow_bind_map();
// opaque parts...
setup_drawing(false);
// without rain/snow we can render the cab early to limit the overdraw
// precipitation happens when overcast is in 1-2 range
if (!FreeFlyModeFlag && Global.Overcast <= 1.0f && Global.render_cab)
{
glDebug("render opaque cab");
model_ubs.future = glm::mat4();
auto const *vehicle{ simulation::Train->Dynamic() };
if( vehicle->InteriorLightLevel > 0.f ) {
setup_shadow_color( glm::min( colors::white, m_shadowcolor + glm::vec4( vehicle->InteriorLight * vehicle->InteriorLightLevel, 1.f ) ) );
}
Render_cab( vehicle, vehicle->InteriorLightLevel, false );
}
setup_shadow_color( m_shadowcolor );
glDebug("render opaque region");
model_ubs.future = future;
Render(simulation::Region);
Render_vr_models();
// ...translucent parts
glDebug("render translucent region");
setup_drawing(true);
Render_Alpha(simulation::Region);
// particles
Render_particles();
// precipitation; done at end, only before cab render
Render_precipitation();
// cab render
if (false == FreeFlyModeFlag && Global.render_cab)
{
model_ubs.future = glm::mat4();
auto *vehicle { simulation::Train->Dynamic() };
if( vehicle->InteriorLightLevel > 0.f ) {
setup_shadow_color( glm::min( colors::white, m_shadowcolor + glm::vec4( vehicle->InteriorLight * vehicle->InteriorLightLevel, 1.f ) ) );
}
if (Global.Overcast > 1.0f)
{
// with active precipitation draw the opaque cab parts here to mask rain/snow placed 'inside' the cab
glDebug( "render opaque cab" );
setup_drawing(false);
Render_cab(vehicle, vehicle->InteriorLightLevel, false);
Render_interior(false);
setup_drawing(true);
Render_interior(true);
}
glDebug( "render translucent cab" );
Render_cab(vehicle, vehicle->InteriorLightLevel, true);
setup_shadow_color( m_shadowcolor );
if( Global.Overcast > 1.0f ) {
// with the cab in place we can (finally) safely draw translucent part of the occupied vehicle
Render_Alpha( vehicle );
}
}
Timer::subsystem.gfx_color.stop();
// store draw stats
m_colorpass.draw_stats = m_renderpass.draw_stats;
setup_shadow_unbind_map();
setup_env_map(nullptr);
if (!Global.gfx_usegles)
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
if (!Global.gfx_skippipeline)
{
if (Global.gfx_postfx_motionblur_enabled)
{
vp.main_fb->clear(GL_COLOR_BUFFER_BIT);
vp.msaa_fb->blit_to(vp.main_fb.get(), vp.width, vp.height, GL_COLOR_BUFFER_BIT, GL_COLOR_ATTACHMENT0);
vp.msaa_fb->blit_to(vp.main_fb.get(), vp.width, vp.height, GL_COLOR_BUFFER_BIT, GL_COLOR_ATTACHMENT1);
model_ubs.param[0].x = m_framerate / (1.0 / Global.gfx_postfx_motionblur_shutter);
model_ubo->update(model_ubs);
m_pfx_motionblur->apply({vp.main_tex.get(), vp.main_texv.get()}, vp.main2_fb.get());
}
else
{
vp.main2_fb->clear(GL_COLOR_BUFFER_BIT);
vp.msaa_fb->blit_to(vp.main2_fb.get(), vp.width, vp.height, GL_COLOR_BUFFER_BIT, GL_COLOR_ATTACHMENT0);
}
if (!Global.gfx_usegles && !Global.gfx_shadergamma)
glEnable(GL_FRAMEBUFFER_SRGB);
glViewport(0, 0, target_size.x, target_size.y);
gl::framebuffer *target = nullptr;
if (vp.custom_backbuffer)
target = vp.backbuffer_fb.get();
if( Global.gfx_postfx_chromaticaberration_enabled ) {
m_pfx_tonemapping->apply( *vp.main2_tex, vp.main_fb.get() );
m_pfx_chromaticaberration->apply( *vp.main_tex, target );
}
else {
m_pfx_tonemapping->apply( *vp.main2_tex, target );
}
if (vr) {
if (vp.proj_type == viewport_config::vr_left)
vr->submit(vr_interface::eye_left, vp.backbuffer_tex.get());
if (vp.proj_type == viewport_config::vr_right)
vr->submit(vr_interface::eye_right, vp.backbuffer_tex.get());
}
if (vp.custom_backbuffer && vp.real_window) {
vp.backbuffer_fb->blit_to(nullptr, vp.width, vp.height, GL_COLOR_BUFFER_BIT, GL_COLOR_ATTACHMENT0);
}
opengl_texture::reset_unit_cache();
}
if (!Global.gfx_usegles && !Global.gfx_shadergamma)
glDisable(GL_FRAMEBUFFER_SRGB);
glDebug("uilayer render");
Timer::subsystem.gfx_gui.start();
if (vp.main) {
draw_debug_ui();
Application.render_ui();
}
Timer::subsystem.gfx_gui.stop();
// restore binding
scene_ubo->bind_uniform();
glDebug("rendermode::color end");
break;
}
case rendermode::shadows:
{
if (!simulation::is_ready)
break;
glDebug("rendermode::shadows");
glEnable(GL_DEPTH_TEST);
setup_drawing( false );
glViewport(0, 0, m_shadowbuffersize, m_shadowbuffersize);
float csmstageboundaries[] = { 0.0f, 5.0f, 25.0f, 1.0f };
if( Global.shadowtune.map_size > 2048 ) {
// increase coverage if our shadow map is large enough to produce decent results
csmstageboundaries[ 1 ] *= Global.shadowtune.map_size / 2048;
csmstageboundaries[ 2 ] *= Global.shadowtune.map_size / 2048;
}
for( auto idx = 0; idx < m_shadowpass.size(); ++idx ) {
m_shadow_fb->attach( *m_shadow_tex, GL_DEPTH_ATTACHMENT, idx );
m_shadow_fb->clear( GL_DEPTH_BUFFER_BIT );
setup_pass( vp, m_renderpass, rendermode::shadows, csmstageboundaries[ idx ], csmstageboundaries[ idx + 1 ] );
m_shadowpass[ idx ] = m_renderpass; // store pass config for reference in other stages
setup_matrices();
scene_ubs.projection = OpenGLMatrices.data( GL_PROJECTION );
auto const csmstagezfar {
( csmstageboundaries[ idx + 1 ] > 1.f ? csmstageboundaries[ idx + 1 ] : Global.shadowtune.range )
+ ( m_shadowpass.size() - idx ) }; // we can fairly safely add some extra padding in the early stages
scene_ubs.cascade_end[ idx ] = csmstagezfar * csmstagezfar; // store squared to allow semi-optimized length2 comparisons in the shader
scene_ubo->update( scene_ubs );
if( m_shadowcolor != colors::white ) {
Render( simulation::Region );
if( idx > 0 ) { continue; } // render cab only in the closest csm stage
if( !FreeFlyModeFlag && Global.render_cab ) {
Render_cab( simulation::Train->Dynamic(), 0.0f, false );
Render_cab( simulation::Train->Dynamic(), 0.0f, true );
}
}
}
m_shadow_fb->unbind();
glDebug("rendermode::shadows end");
break;
}
case rendermode::reflections:
{
if (!simulation::is_ready)
break;
glDebug("rendermode::reflections");
// NOTE: buffer attachment and viewport setup in this mode is handled by the wrapper method
glEnable(GL_DEPTH_TEST);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
m_env_fb->clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_env_fb->bind();
setup_env_map(m_empty_cubemap.get());
setup_matrices();
// render
// environment...
setup_drawing(true);
setup_shadow_unbind_map();
scene_ubs.projection = OpenGLMatrices.data(GL_PROJECTION);
scene_ubo->update(scene_ubs);
Render(&simulation::Environment);
// opaque parts...
setup_drawing(false);
setup_shadow_bind_map();
scene_ubs.projection = OpenGLMatrices.data(GL_PROJECTION);
scene_ubo->update(scene_ubs);
Render(simulation::Region);
m_env_fb->unbind();
glDebug("rendermode::reflections end");
break;
}
case rendermode::pickcontrols:
{
if (!simulation::is_ready || !simulation::Train)
break;
glDebug("rendermode::pickcontrols");
glEnable(GL_DEPTH_TEST);
glViewport(0, 0, EU07_PICKBUFFERSIZE, EU07_PICKBUFFERSIZE);
m_pick_fb->bind();
m_pick_fb->clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_picksurfaceitems.clear();
m_pickcontrolsitems.clear();
setup_matrices();
setup_drawing(false);
scene_ubs.projection = OpenGLMatrices.data(GL_PROJECTION);
scene_ubo->update(scene_ubs);
if (simulation::Train != nullptr) {
Render_cab(simulation::Train->Dynamic(), 0.0f);
Render(simulation::Train->Dynamic());
}
m_pick_fb->unbind();
glDebug("rendermode::pickcontrols end");
break;
}
case rendermode::pickscenery:
{
if (!simulation::is_ready)
break;
glEnable(GL_DEPTH_TEST);
glViewport(0, 0, EU07_PICKBUFFERSIZE, EU07_PICKBUFFERSIZE);
m_pick_fb->bind();
m_pick_fb->clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
m_picksceneryitems.clear();
setup_matrices();
setup_drawing(false);
scene_ubs.projection = OpenGLMatrices.data(GL_PROJECTION);
scene_ubo->update(scene_ubs);
Render(simulation::Region);
break;
}
default:
{
break;
}
}
}
bool opengl33_renderer::Render_interior( bool const Alpha ) {
// TODO: early frustum based cull, camera might be pointing elsewhere
std::vector< std::pair<float, TDynamicObject *> > dynamics;
auto *dynamic { simulation::Train->Dynamic() };
// draw interiors of the occupied vehicle, and all vehicles behind it with permanent coupling, in case they're open-ended
while( dynamic != nullptr ) {
glm::dvec3 const originoffset { dynamic->vPosition - m_renderpass.pass_camera.position() };
float const squaredistance{ glm::length2( glm::vec3{ originoffset } / Global.ZoomFactor ) };
dynamics.emplace_back( squaredistance, dynamic );
dynamic = dynamic->Next( coupling::permanent );
}
// draw also interiors of permanently coupled vehicles in front, if there's any
dynamic = simulation::Train->Dynamic()->Prev( coupling::permanent );
while( dynamic != nullptr ) {
glm::dvec3 const originoffset { dynamic->vPosition - m_renderpass.pass_camera.position() };
float const squaredistance{ glm::length2( glm::vec3{ originoffset } / Global.ZoomFactor ) };
dynamics.emplace_back( squaredistance, dynamic );
dynamic = dynamic->Prev( coupling::permanent );
}
if( Alpha ) {
std::sort(
std::begin( dynamics ), std::end( dynamics ),
[]( std::pair<float, TDynamicObject *> const &Left, std::pair<float, TDynamicObject *> const &Right ) {
return ( Left.first ) > ( Right.first ); } );
}
for( auto &dynamic : dynamics ) {
Render_lowpoly( dynamic.second, dynamic.first, true, Alpha );
}
return true;
}
bool opengl33_renderer::Render_lowpoly( TDynamicObject *Dynamic, float const Squaredistance, bool const Setup, bool const Alpha ) {
if( Dynamic->mdLowPolyInt == nullptr ) { return false; }
// low poly interior
if( Setup ) {
TSubModel::iInstance = reinterpret_cast<std::uintptr_t>( Dynamic ); //żeby nie robić cudzych animacji
glm::dvec3 const originoffset{ Dynamic->vPosition - m_renderpass.pass_camera.position() };
Dynamic->ABuLittleUpdate( Squaredistance ); // ustawianie zmiennych submodeli dla wspólnego modelu
glm::mat4 mv = OpenGLMatrices.data( GL_MODELVIEW );
::glPushMatrix();
::glTranslated( originoffset.x, originoffset.y, originoffset.z );
::glMultMatrixd( Dynamic->mMatrix.readArray() );
}
// HACK: reduce light level for vehicle interior if there's strong global lighting source
if( false == Alpha ) {
/*
auto const luminance { static_cast<float>( std::min(
( Dynamic->fShade > 0.0 ? Dynamic->fShade * Global.fLuminance : Global.fLuminance ),
Global.fLuminance - 0.5 * ( std::max( 0.3, Global.fLuminance - Global.Overcast ) ) ) ) };
*/
auto const luminance{ static_cast<float>(
0.5
* ( std::max(
0.3,
( Global.fLuminance - Global.Overcast )
* ( Dynamic->fShade > 0.0 ?
Dynamic->fShade :
1.0 ) ) ) ) };
setup_sunlight_intensity(
clamp( (
Dynamic->fShade > 0.f ?
Dynamic->fShade :
1.f )
- luminance,
0.f, 1.f ) );
Render( Dynamic->mdLowPolyInt, Dynamic->Material(), Squaredistance );
// HACK: if the model has low poly interior, we presume the load is placed inside and also affected by reduced light level
if( Dynamic->mdLoad ) {
// renderowanie nieprzezroczystego ładunku
Render( Dynamic->mdLoad, Dynamic->Material(), Squaredistance, { 0.f, Dynamic->LoadOffset, 0.f }, {} );
}
setup_sunlight_intensity( Dynamic->fShade > 0.f ? Dynamic->fShade : 1.f );
}
else {
// Render_Alpha( Dynamic->mdLowPolyInt, Dynamic->Material(), Squaredistance );
// HACK: some models have windows included as part of the main model instead of lowpoly
if( Dynamic->mdModel ) {
// main model
Render_Alpha( Dynamic->mdModel, Dynamic->Material(), Squaredistance );
}
}
if( Setup ) {
if( Dynamic->fShade > 0.0f ) {
// restore regular light level
setup_sunlight_intensity();
}
::glPopMatrix();
// TODO: check if this reset is needed. In theory each object should render all parts based on its own instance data anyway?
if( Dynamic->btnOn ) {
Dynamic->TurnOff(); // przywrócenie domyślnych pozycji submodeli
}
}
return true;
}
bool opengl33_renderer::Render_coupler_adapter( TDynamicObject *Dynamic, float const Squaredistance, int const End, bool const Alpha ) {
if( Dynamic->m_coupleradapters[ End ] == nullptr ) { return false; }
auto const position { Math3D::vector3 {
0.f,
Dynamic->MoverParameters->Couplers[ End ].adapter_height,
( Dynamic->MoverParameters->Couplers[ End ].adapter_length + Dynamic->MoverParameters->Dim.L * 0.5 ) * ( End == end::front ? 1 : -1 ) } };
auto const angle { glm::vec3{
0,
( End == end::front ? 0 : 180 ),
0 } };
if( Alpha ) {
Render_Alpha( Dynamic->m_coupleradapters[ End ], Dynamic->Material(), Squaredistance, position, angle );
}
else {
Render( Dynamic->m_coupleradapters[ End ], Dynamic->Material(), Squaredistance, position, angle );
}
return true;
}
// creates dynamic environment cubemap
bool opengl33_renderer::Render_reflections(viewport_config &vp)
{
if( Global.reflectiontune.update_interval == 0 ) { return false; }
auto const timestamp{ Timer::GetRenderTime() };
if( ( timestamp - m_environmentupdatetime < Global.reflectiontune.update_interval )
&& ( glm::length( m_renderpass.pass_camera.position() - m_environmentupdatelocation ) < 1000.0 ) ) {
// run update every 5+ mins of simulation time, or at least 1km from the last location
return false;
}
m_environmentupdatetime = timestamp;
m_environmentupdatelocation = m_renderpass.pass_camera.position();
glViewport(0, 0, gl::ENVMAP_SIZE, gl::ENVMAP_SIZE);
for (m_environmentcubetextureface = 0; m_environmentcubetextureface < 6; ++m_environmentcubetextureface)
{
m_env_fb->attach(*m_env_tex, m_environmentcubetextureface, GL_COLOR_ATTACHMENT0);
if (m_env_fb->is_complete())
Render_pass(vp, rendermode::reflections);
}
m_env_tex->generate_mipmaps();
m_env_fb->detach(GL_COLOR_ATTACHMENT0);
return true;
}
// based on
// https://csc.lsu.edu/~kooima/articles/genperspective/index.html
glm::mat4 opengl33_renderer::perspective_projection(const viewport_proj_config &c,
float n, float f, glm::mat4 &frustum)
{
glm::vec3 vr, vu, vn;
vr = glm::normalize(c.pb - c.pa);
vu = glm::normalize(c.pc - c.pa);
vn = glm::normalize(glm::cross(vr, vu));
glm::mat4 M;
M[0] = glm::vec4(vr, 0.0f);
M[1] = glm::vec4(vu, 0.0f);
M[2] = glm::vec4(vn, 0.0f);
M = glm::transpose(M);
glm::vec3 va, vb, vc;
va = c.pa - c.pe;
vb = c.pb - c.pe;
vc = c.pc - c.pe;
float l, r, b, t, d;
d = -glm::dot(va, vn);
l = glm::dot(vr, va) * n / d;
r = glm::dot(vr, vb) * n / d;
b = glm::dot(vu, va) * n / d;
t = glm::dot(vu, vc) * n / d;
frustum = glm::frustum(l, r, b, t, n, f);
glm::mat4 R = frustum;
frustum = glm::translate(frustum * M, -c.pe);
if (GLAD_GL_ARB_clip_control || GLAD_GL_EXT_clip_control) {
// when clip_control available, use projection matrix with 1..0 Z range and infinite zfar
R[2][2] = -1.0f;
R[3][2] = -2.0f * n;
R = glm::mat4( //
1.0f, 0.0f, 0.0f, 0.0f, //
0.0f, 1.0f, 0.0f, 0.0f, //
0.0f, 0.0f, -0.5f, 0.0f, //
0.0f, 0.0f, 0.5f, 1.0f //
) * R;
} else {
// or use standard matrix but with 1..-1 Z range
// (reverse Z don't give any extra precision without clip_control, but it is used anyway for consistency)
R = glm::mat4(
1.0f, 0.0f, 0.0f, 0.0f, //
0.0f, 1.0f, 0.0f, 0.0f, //
0.0f, 0.0f, -1.0f, 0.0f, //
0.0f, 0.0f, 0.0f, 1.0f //
) * R;
}
return glm::translate(R * M, -c.pe);
}
glm::mat4 opengl33_renderer::perspective_projection_raw(float fovy, float aspect, float znear, float zfar)
{
if (GLAD_GL_ARB_clip_control || GLAD_GL_EXT_clip_control)
{
const float f = 1.0f / tan(fovy / 2.0f);
// when clip_control available, use projection matrix with 1..0 Z range and infinite zfar
return glm::mat4( //
f / aspect, 0.0f, 0.0f, 0.0f, //
0.0f, f, 0.0f, 0.0f, //
0.0f, 0.0f, 0.0f, -1.0f, //
0.0f, 0.0f, znear, 0.0f //
);
}
else
// or use standard matrix but with 1..-1 Z range
// (reverse Z don't give any extra precision without clip_control, but it is used anyway for consistency)
return glm::mat4( //
1.0f, 0.0f, 0.0f, 0.0f, //
0.0f, 1.0f, 0.0f, 0.0f, //
0.0f, 0.0f, -1.0f, 0.0f, //
0.0f, 0.0f, 0.0f, 1.0f //
) *
glm::perspective(fovy, aspect, znear, zfar);
}
glm::mat4 opengl33_renderer::ortho_projection(float l, float r, float b, float t, float znear, float zfar)
{
glm::mat4 proj = glm::ortho(l, r, b, t, znear, zfar);
if (GLAD_GL_ARB_clip_control || GLAD_GL_EXT_clip_control)
// when clip_control available, use projection matrix with 1..0 Z range
return glm::mat4( //
1.0f, 0.0f, 0.0f, 0.0f, //
0.0f, 1.0f, 0.0f, 0.0f, //
0.0f, 0.0f, -0.5f, 0.0f, //
0.0f, 0.0f, 0.5f, 1.0f //
) *
proj;
else
// or use standard matrix but with 1..-1 Z range
// (reverse Z don't give any extra precision without clip_control, but it is used anyway for consistency)
return glm::mat4( //
1.0f, 0.0f, 0.0f, 0.0f, //
0.0f, 1.0f, 0.0f, 0.0f, //
0.0f, 0.0f, -1.0f, 0.0f, //
0.0f, 0.0f, 0.0f, 1.0f //
) *
proj;
}
glm::mat4 opengl33_renderer::ortho_frustumtest_projection(float l, float r, float b, float t, float znear, float zfar)
{
// for frustum calculation, use standard opengl matrix
return glm::ortho(l, r, b, t, znear, zfar);
}
void opengl33_renderer::setup_pass(viewport_config &Viewport, renderpass_config &Config, rendermode const Mode,
float const Znear, float const Zfar, bool const Ignoredebug)
{
Config.draw_mode = Mode;
if( false == simulation::is_ready ) { return; }
// setup draw range
switch( Mode ) {
case rendermode::color: { Config.draw_range = Global.BaseDrawRange * Global.fDistanceFactor * Viewport.draw_range; break; }
case rendermode::shadows: { Config.draw_range = Global.shadowtune.range; break; }
case rendermode::reflections: { Config.draw_range = Global.BaseDrawRange * Viewport.draw_range; break; }
case rendermode::pickcontrols: { Config.draw_range = 50.f; break; }
case rendermode::pickscenery: { Config.draw_range = Global.BaseDrawRange * Viewport.draw_range * 0.5f; break; }
default: { Config.draw_range = 0.f; break; }
}
// setup camera
auto &camera = Config.pass_camera;
glm::dmat4 viewmatrix(1.0);
glm::mat4 frustumtest_proj;
glm::ivec2 target_size(Viewport.width, Viewport.height);
if (Viewport.main) // TODO: update window sizes also for extra viewports
target_size = glm::ivec2(Global.iWindowWidth, Global.iWindowHeight);
float const fovy = glm::radians(Global.FieldOfView / Global.ZoomFactor);
float const aspect = (float)target_size.x / std::max(1.f, (float)target_size.y);
Config.viewport_camera.position() = Global.pCamera.Pos;
switch (Mode)
{
case rendermode::color:
{
if (Viewport.proj_type == viewport_config::normal && Viewport.main) {
// TODO: update window sizes also for extra viewports
float const fovy = glm::radians(Global.FieldOfView / Global.ZoomFactor);
// setup virtual screen
glm::vec2 screen_h = glm::vec2(Global.iWindowWidth, Global.iWindowHeight) / 2.0f;
float const dist = screen_h.y / glm::tan(fovy / 2.0f);
Viewport.projection.pa = glm::vec3(-screen_h.x, -screen_h.y, -dist);
Viewport.projection.pb = glm::vec3( screen_h.x, -screen_h.y, -dist);
Viewport.projection.pc = glm::vec3(-screen_h.x, screen_h.y, -dist);
Viewport.projection.pe = glm::vec3(0.0f, 0.0f, 0.0f);
}
if (vr && (Viewport.proj_type == viewport_config::vr_left || Viewport.proj_type == viewport_config::vr_right)) {
Viewport.projection = vr->get_proj_config(Viewport.proj_type == viewport_config::vr_left ? vr_interface::eye_left : vr_interface::eye_right);
Global.pCamera.Angle.x = 0.0;
Global.pCamera.Angle.z = 0.0;
}
if (Global.headtrack_conf.magic_window)
Viewport.projection.pe = Global.viewport_move;
TCamera *cam = ((false == DebugCameraFlag) || (true == Ignoredebug)) ? &Global.pCamera : &Global.pDebugCamera;
camera.position() = cam->Pos;
cam->SetMatrix(viewmatrix);
if (!Global.headtrack_conf.magic_window || vr) {
camera.position() += Global.viewport_move * glm::mat3(viewmatrix);
viewmatrix = glm::dmat4(glm::inverse(Global.viewport_rotate)) * viewmatrix;
}
// optimization: don't bother drawing things completely blended with the background
// but ensure at least 2 km range to account for signals and lights
Config.draw_range = std::min( Config.draw_range, m_fogrange * 2 );
Config.draw_range = std::max( 2000.f, Config.draw_range );
// projection
auto const zfar = ( Zfar > 1.f ? Zfar : Config.draw_range * Zfar );
auto const znear = ( Znear > 1.f ? Znear : Znear > 0.f ? Znear * zfar : 0.1f * Global.ZoomFactor);
camera.projection() = perspective_projection(Viewport.projection, znear, zfar, frustumtest_proj);
break;
}
case rendermode::shadows:
{
// calculate lightview boundaries based on relevant area of the world camera frustum:
// ...setup chunk of frustum we're interested in...
// auto const zfar = std::min(1.f, Global.shadowtune.range / (Global.BaseDrawRange * Global.fDistanceFactor) * std::max(1.f, Global.ZoomFactor * 0.5f));
// auto const zfar = ( Zfar > 1.f ? Zfar * std::max( 1.f, Global.ZoomFactor * 0.5f ) : Zfar );
auto const zfar = ( Zfar > 1.f ? Zfar : Zfar * Global.shadowtune.range * std::max( Zfar, Global.ZoomFactor * 0.5f ) );
renderpass_config worldview;
setup_pass(Viewport, worldview, rendermode::color, Znear, zfar, true);
auto &frustumchunkshapepoints = worldview.pass_camera.frustum_points();
// ...modelview matrix: determine the centre of frustum chunk in world space...
glm::vec3 frustumchunkmin, frustumchunkmax;
bounding_box(frustumchunkmin, frustumchunkmax, std::begin(frustumchunkshapepoints), std::end(frustumchunkshapepoints));
auto const frustumchunkcentre = (frustumchunkmin + frustumchunkmax) * 0.5f;
// ...cap the vertical angle to keep shadows from getting too long...
auto const lightvector = glm::normalize(glm::vec3{m_sunlight.direction.x, std::min(m_sunlight.direction.y, -0.2f), m_sunlight.direction.z});
// ...place the light source at the calculated centre and setup world space light view matrix...
camera.position() = worldview.pass_camera.position() + glm::dvec3{frustumchunkcentre};
viewmatrix *= glm::lookAt(camera.position(), camera.position() + glm::dvec3{lightvector}, glm::dvec3{0.f, 1.f, 0.f});
// ...projection matrix: calculate boundaries of the frustum chunk in light space...
auto const lightviewmatrix = glm::translate(glm::mat4{glm::mat3{viewmatrix}}, -frustumchunkcentre);
for (auto &point : frustumchunkshapepoints)
{
point = lightviewmatrix * point;
}
bounding_box(frustumchunkmin, frustumchunkmax, std::begin(frustumchunkshapepoints), std::end(frustumchunkshapepoints));
// quantize the frustum points and add some padding, to reduce shadow shimmer on scale changes
auto const frustumchunkdepth { zfar - ( Znear > 1.f ? Znear : 0.f ) };
auto const quantizationstep{std::min(frustumchunkdepth, 50.f)};
frustumchunkmin = quantizationstep * glm::floor(frustumchunkmin * (1.f / quantizationstep));
frustumchunkmax = quantizationstep * glm::ceil(frustumchunkmax * (1.f / quantizationstep));
// ...use the dimensions to set up light projection boundaries...
// NOTE: since we only have one cascade map stage, we extend the chunk forward/back to catch areas normally covered by other stages
camera.projection() = ortho_projection(frustumchunkmin.x, frustumchunkmax.x, frustumchunkmin.y, frustumchunkmax.y, frustumchunkmin.z - 500.f, frustumchunkmax.z + 500.f);
frustumtest_proj = ortho_frustumtest_projection(frustumchunkmin.x, frustumchunkmax.x, frustumchunkmin.y, frustumchunkmax.y, frustumchunkmin.z - 500.f, frustumchunkmax.z + 500.f);
// ... and adjust the projection to sample complete shadow map texels:
// get coordinates for a sample texel...
auto shadowmaptexel = glm::vec2{camera.projection() * glm::mat4{viewmatrix} * glm::vec4{0.f, 0.f, 0.f, 1.f}};
// ...convert result from clip space to texture coordinates, and calculate adjustment...
shadowmaptexel *= m_shadowbuffersize * 0.5f;
auto shadowmapadjustment = glm::round(shadowmaptexel) - shadowmaptexel;
// ...transform coordinate change back to homogenous light space...
shadowmapadjustment /= m_shadowbuffersize * 0.5f;
// ... and bake the adjustment into the projection matrix
camera.projection() = glm::translate(glm::mat4{1.f}, glm::vec3{shadowmapadjustment, 0.f}) * camera.projection();
break;
}
case rendermode::pickcontrols:
case rendermode::pickscenery:
{
// modelview
camera.position() = Global.pCamera.Pos;
Global.pCamera.SetMatrix(viewmatrix);
// projection
float znear = 0.1f * Global.ZoomFactor;
float zfar = Config.draw_range * Global.fDistanceFactor;
camera.projection() = perspective_projection(Viewport.projection, znear, zfar, frustumtest_proj);
break;
}
case rendermode::reflections:
{
// modelview
camera.position() = (((true == DebugCameraFlag) && (false == Ignoredebug)) ? Global.pDebugCamera.Pos : Global.pCamera.Pos);
glm::dvec3 const cubefacetargetvectors[6] = {{1.0, 0.0, 0.0}, {-1.0, 0.0, 0.0}, {0.0, 1.0, 0.0}, {0.0, -1.0, 0.0}, {0.0, 0.0, 1.0}, {0.0, 0.0, -1.0}};
glm::dvec3 const cubefaceupvectors[6] = {{0.0, -1.0, 0.0}, {0.0, -1.0, 0.0}, {0.0, 0.0, 1.0}, {0.0, 0.0, -1.0}, {0.0, -1.0, 0.0}, {0.0, -1.0, 0.0}};
auto const cubefaceindex = m_environmentcubetextureface;
viewmatrix *= glm::lookAt(camera.position(), camera.position() + cubefacetargetvectors[cubefaceindex], cubefaceupvectors[cubefaceindex]);
// projection
float znear = 0.1f * Global.ZoomFactor;
float zfar = Config.draw_range * Global.fDistanceFactor;
viewport_proj_config proj({{ -0.5f, -0.5f, -0.5f },
{ 0.5f, -0.5f, -0.5f },
{ -0.5f, 0.5f, -0.5f },
{ 0.0f, 0.0f, 0.0f }});
camera.projection() = perspective_projection(proj, znear, zfar, frustumtest_proj);
break;
}
default:
{
break;
}
}
camera.modelview() = viewmatrix;
camera.update_frustum(frustumtest_proj);
}
void opengl33_renderer::setup_matrices()
{
OpenGLMatrices.mode(GL_PROJECTION);
OpenGLMatrices.load_matrix(m_renderpass.pass_camera.projection());
// trim modelview matrix just to rotation, since rendering is done in camera-centric world space
OpenGLMatrices.mode(GL_MODELVIEW);
OpenGLMatrices.load_matrix(glm::mat4{glm::mat3{m_renderpass.pass_camera.modelview()}});
}
void opengl33_renderer::setup_drawing(bool const Alpha)
{
if (Alpha)
{
glEnable(GL_BLEND);
glDepthMask(GL_FALSE);
m_blendingenabled = true;
}
else
{
glDisable(GL_BLEND);
glDepthMask(GL_TRUE);
m_blendingenabled = false;
}
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
{
glCullFace(GL_BACK);
break;
}
case rendermode::shadows:
{
glCullFace(GL_FRONT);
break;
}
case rendermode::pickcontrols:
case rendermode::pickscenery:
{
glCullFace(GL_BACK);
break;
}
default:
{
break;
}
}
}
void opengl33_renderer::setup_shadow_unbind_map()
{
opengl_texture::unbind( gl::SHADOW_TEX );
}
// binds shadow map and updates shadow map uniform data
void opengl33_renderer::setup_shadow_bind_map()
{
if( false == Global.gfx_shadowmap_enabled ) { return; }
m_shadow_tex->bind(gl::SHADOW_TEX);
glm::mat4 coordmove;
if (GLAD_GL_ARB_clip_control || GLAD_GL_EXT_clip_control)
// transform 1..-1 NDC xy coordinates to 1..0
coordmove = glm::mat4( //
0.5, 0.0, 0.0, 0.0, //
0.0, 0.5, 0.0, 0.0, //
0.0, 0.0, 1.0, 0.0, //
0.5, 0.5, 0.0, 1.0 //
);
else
// without clip_control we also need to transform z
coordmove = glm::mat4( //
0.5, 0.0, 0.0, 0.0, //
0.0, 0.5, 0.0, 0.0, //
0.0, 0.0, 0.5, 0.0, //
0.5, 0.5, 0.5, 1.0 //
);
for( auto idx = 0; idx < m_shadowpass.size(); ++idx ) {
glm::mat4 depthproj = m_shadowpass[ idx ].pass_camera.projection();
// NOTE: we strip transformations from camera projections to remove jitter that occurs
// with large (and unneded as we only need the offset) transformations back and forth
auto const depthcam{ glm::mat3{ m_shadowpass[ idx ].pass_camera.modelview()} };
auto const worldcam{ glm::mat3{ m_renderpass.pass_camera.modelview()} };
scene_ubs.lightview[ idx ] =
coordmove
* depthproj
* glm::translate(
glm::mat4{ depthcam },
glm::vec3{ m_renderpass.pass_camera.position() - m_shadowpass[ idx ].pass_camera.position() } )
* glm::mat4{ glm::inverse( worldcam ) };
}
scene_ubo->update(scene_ubs);
}
void opengl33_renderer::setup_shadow_color( glm::vec4 const &Shadowcolor ) {
model_ubs.shadow_tone = glm::pow( Shadowcolor.x, 2.2f );
}
void opengl33_renderer::setup_env_map(gl::cubemap *tex)
{
if (tex)
{
tex->bind(GL_TEXTURE0 + gl::ENV_TEX);
glActiveTexture(GL_TEXTURE0);
}
else
{
glActiveTexture(GL_TEXTURE0 + gl::ENV_TEX);
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
glActiveTexture(GL_TEXTURE0);
}
opengl_texture::reset_unit_cache();
}
void opengl33_renderer::setup_environment_light(TEnvironmentType const Environment)
{
switch (Environment)
{
case e_flat:
{
setup_sunlight_intensity();
// m_environment = Environment;
break;
}
case e_canyon:
{
setup_sunlight_intensity(0.4f);
// m_environment = Environment;
break;
}
case e_tunnel:
{
setup_sunlight_intensity(0.2f);
// m_environment = Environment;
break;
}
default:
{
break;
}
}
}
void opengl33_renderer::setup_sunlight_intensity( float const Factor ) {
m_sunlight.apply_intensity( Factor );
light_ubs.lights[ 0 ].intensity = m_sunlight.factor;
light_ubs.ambient = m_sunlight.ambient * m_sunlight.factor;
light_ubo->update( light_ubs );
}
bool opengl33_renderer::Render(world_environment *Environment)
{
m_shadowcolor = colors::white; // prevent shadow from affecting sky
setup_shadow_color( m_shadowcolor );
if (Global.bWireFrame)
{
// bez nieba w trybie rysowania linii
return false;
}
Bind_Material(null_handle);
::glDisable(GL_DEPTH_TEST);
::glPushMatrix();
// skydome
// drawn with 500m radius to blend in if the fog range is low
glPushMatrix();
{
glScalef( 500.0f, 500.0f, 500.0f );
model_ubs.set_modelview( OpenGLMatrices.data( GL_MODELVIEW ) );
model_ubo->update( model_ubs );
m_skydomerenderer.update();
m_skydomerenderer.render();
// skydome uses a custom vbo which could potentially confuse the main geometry system. hardly elegant but, eh
gfx::opengl33_vaogeometrybank::reset();
}
glPopMatrix();
::glBlendFunc( GL_SRC_ALPHA, GL_ONE );
// stars
if (Environment->m_stars.m_stars != nullptr)
{
// setup
::glPushMatrix();
::glRotatef(Environment->m_stars.m_latitude, 1.f, 0.f, 0.f); // ustawienie osi OY na północ
::glRotatef(-std::fmod((float)Global.fTimeAngleDeg, 360.f), 0.f, 1.f, 0.f); // obrót dobowy osi OX
// render
Render(Environment->m_stars.m_stars, nullptr, 1.0);
// post-render cleanup
::glPopMatrix();
}
// celestial bodies
m_celestial_shader->bind();
m_empty_vao->bind();
auto const &modelview = OpenGLMatrices.data(GL_MODELVIEW);
auto const fogfactor{clamp(Global.fFogEnd / 2000.f, 0.f, 1.f)}; // stronger fog reduces opacity of the celestial bodies
float const duskfactor = 1.0f - clamp(std::abs(Environment->m_sun.getAngle()), 0.0f, 12.0f) / 12.0f;
glm::vec3 suncolor = interpolate(glm::vec3(255.0f / 255.0f, 242.0f / 255.0f, 231.0f / 255.0f), glm::vec3(235.0f / 255.0f, 140.0f / 255.0f, 36.0f / 255.0f), duskfactor);
// sun
{
Bind_Texture(0, m_suntexture);
glm::vec4 color(suncolor.x, suncolor.y, suncolor.z, clamp(1.5f - Global.Overcast, 0.f, 1.f) * fogfactor);
auto const sunvector = Environment->m_sun.getDirection();
float const size = interpolate( // TODO: expose distance/scale factor from the moon object
0.0325f,
0.0275f,
clamp( Environment->m_sun.getAngle(), 0.f, 90.f ) / 90.f );
model_ubs.param[0] = color;
model_ubs.param[1] = glm::vec4(glm::vec3(modelview * glm::vec4(sunvector, 1.0f)), /*0.00463f*/ size);
model_ubs.param[2] = glm::vec4(0.0f, 1.0f, 1.0f, 0.0f);
model_ubo->update(model_ubs);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
// moon
{
Bind_Texture(0, m_moontexture);
glm::vec3 mooncolor(255.0f / 255.0f, 242.0f / 255.0f, 231.0f / 255.0f);
glm::vec4 color(mooncolor.r, mooncolor.g, mooncolor.b,
// fade the moon if it's near the sun in the sky, especially during the day
std::max<float>(0.f, 1.0 - 0.5 * Global.fLuminance - 0.65 * std::max(0.f, glm::dot(Environment->m_sun.getDirection(), Environment->m_moon.getDirection()))) * fogfactor);
auto const moonvector = Environment->m_moon.getDirection();
// choose the moon appearance variant, based on current moon phase
// NOTE: implementation specific, 8 variants are laid out in 3x3 arrangement
// from new moon onwards, top left to right bottom (last spot is left for future use, if any)
auto const moonphase = Environment->m_moon.getPhase();
float moonu, moonv;
if (moonphase < 1.84566f)
{
moonv = 1.0f - 0.0f;
moonu = 0.0f;
}
else if (moonphase < 5.53699f)
{
moonv = 1.0f - 0.0f;
moonu = 0.333f;
}
else if (moonphase < 9.22831f)
{
moonv = 1.0f - 0.0f;
moonu = 0.667f;
}
else if (moonphase < 12.91963f)
{
moonv = 1.0f - 0.333f;
moonu = 0.0f;
}
else if (moonphase < 16.61096f)
{
moonv = 1.0f - 0.333f;
moonu = 0.333f;
}
else if (moonphase < 20.30228f)
{
moonv = 1.0f - 0.333f;
moonu = 0.667f;
}
else if (moonphase < 23.99361f)
{
moonv = 1.0f - 0.667f;
moonu = 0.0f;
}
else if (moonphase < 27.68493f)
{
moonv = 1.0f - 0.667f;
moonu = 0.333f;
}
else if (moonphase == 50) //9th slot used for easter egg
{
moonv = 1.0f - 0.667f;
moonu = 0.66f;
}
else
{
moonv = 1.0f - 0.0f;
moonu = 0.0f;
}
float const size = interpolate( // TODO: expose distance/scale factor from the moon object
0.0160f,
0.0135f,
clamp( Environment->m_moon.getAngle(), 0.f, 90.f ) / 90.f );
model_ubs.param[0] = color;
model_ubs.param[1] = glm::vec4(glm::vec3(modelview * glm::vec4(moonvector, 1.0f)), /*0.00451f*/ size);
model_ubs.param[2] = glm::vec4(moonu, moonv, 0.333f, 0.0f);
model_ubo->update(model_ubs);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
::glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
// clouds
if (Environment->m_clouds.mdCloud)
{
// setup
auto const color {
glm::clamp(
( glm::vec3 { Global.DayLight.ambient }
+ 0.35f * glm::vec3{ Global.DayLight.diffuse } ) * simulation::Environment.light_intensity()
* 0.5f,
glm::vec3{ 0.f }, glm::vec3{ 1.f } ) };
// write cloud color into material
TSubModel *mdl = Environment->m_clouds.mdCloud->Root;
if (mdl->m_material != null_handle)
m_materials.material(mdl->m_material).params[0] = glm::vec4(color, 1.0f);
// render
Render(Environment->m_clouds.mdCloud, nullptr, 100.0);
Render_Alpha(Environment->m_clouds.mdCloud, nullptr, 100.0);
// post-render cleanup
}
gl::program::unbind();
gl::vao::unbind();
::glPopMatrix();
::glEnable(GL_DEPTH_TEST);
m_sunlight.apply_angle();
m_sunlight.apply_intensity();
// calculate shadow tone, based on positions of celestial bodies
m_shadowcolor = interpolate(glm::vec4{colors::shadow}, glm::vec4{colors::white}, clamp(-Environment->m_sun.getAngle(), 0.f, 6.f) / 6.f);
if ((Environment->m_sun.getAngle() < -18.f) && (Environment->m_moon.getAngle() > 0.f))
{
// turn on moon shadows after nautical twilight, if the moon is actually up
m_shadowcolor = colors::shadow;
}
// soften shadows depending on sky overcast factor
m_shadowcolor = glm::min(colors::white, m_shadowcolor + ((colors::white - colors::shadow) * Global.Overcast));
setup_shadow_color( m_shadowcolor);
return true;
}
// geometry methods
// creates a new geometry bank. returns: handle to the bank or NULL
gfx::geometrybank_handle opengl33_renderer::Create_Bank()
{
return m_geometry.register_bank(std::make_unique<gfx::opengl33_vaogeometrybank>());
}
// creates a new indexed geometry chunk of specified type from supplied data, in specified bank. returns: handle to the chunk or NULL
gfx::geometry_handle opengl33_renderer::Insert( gfx::index_array &Indices, gfx::vertex_array &Vertices, gfx::geometrybank_handle const &Geometry, int const Type )
{
// NOTE: we expect indexed geometry to come with calculated tangents
return m_geometry.create_chunk( Indices, Vertices, Geometry, Type );
}
// creates a new geometry chunk of specified type from supplied data, in specified bank. returns: handle to the chunk or NULL
gfx::geometry_handle opengl33_renderer::Insert(gfx::vertex_array &Vertices, gfx::geometrybank_handle const &Geometry, int const Type)
{
gfx::calculate_tangents(Vertices, gfx::index_array(), Type);
return m_geometry.create_chunk(Vertices, Geometry, Type);
}
// replaces data of specified chunk with the supplied vertex data, starting from specified offset
bool opengl33_renderer::Replace(gfx::vertex_array &Vertices, gfx::geometry_handle const &Geometry, int const Type, std::size_t const Offset)
{
gfx::calculate_tangents(Vertices, gfx::index_array(), Type);
return m_geometry.replace(Vertices, Geometry, Offset);
}
// adds supplied vertex data at the end of specified chunk
bool opengl33_renderer::Append(gfx::vertex_array &Vertices, gfx::geometry_handle const &Geometry, int const Type)
{
gfx::calculate_tangents(Vertices, gfx::index_array(), Type);
return m_geometry.append(Vertices, Geometry);
}
// provides direct access to index data of specfied chunk
gfx::index_array const & opengl33_renderer::Indices(gfx::geometry_handle const &Geometry) const
{
return m_geometry.indices(Geometry);
}
// provides direct access to vertex data of specfied chunk
gfx::vertex_array const &opengl33_renderer::Vertices(gfx::geometry_handle const &Geometry) const
{
return m_geometry.vertices(Geometry);
}
// material methods
material_handle opengl33_renderer::Fetch_Material(std::string const &Filename, bool const Loadnow)
{
return m_materials.create(Filename, Loadnow);
}
std::shared_ptr<gl::program> opengl33_renderer::Fetch_Shader(const std::string &name)
{
auto it = m_shaders.find(name);
if (it == m_shaders.end())
{
gl::shader fragment("mat_" + name + ".frag");
gl::program *program = new gl::program({fragment, *m_vertex_shader.get()});
m_shaders.insert({name, std::shared_ptr<gl::program>(program)});
}
return m_shaders[name];
}
void opengl33_renderer::Bind_Material( material_handle const Material, TSubModel const *sm, lighting_data const *lighting )
{
if (Material != null_handle)
{
auto const &material { m_materials.material( Material ) };
if( false == material.is_good ) {
// use failure indicator instead
if( Material != m_invalid_material ) {
Bind_Material( m_invalid_material );
}
return;
}
memcpy(&model_ubs.param[0], &material.params[0], sizeof(model_ubs.param));
for( auto const &entry : material.params_state )
{
glm::vec4 src(1.0f);
// submodel-based parameters
if (sm)
{
switch( entry.defaultparam ) {
case gl::shader::defaultparam_e::ambient: {
src = sm->f4Ambient;
break;
}
case gl::shader::defaultparam_e::diffuse: {
src = sm->f4Diffuse;
break;
}
case gl::shader::defaultparam_e::specular: {
src = sm->f4Specular;
break;
}
default: {
break;
}
}
}
if( lighting )
{
switch( entry.defaultparam ) {
case gl::shader::defaultparam_e::ambient: {
src = lighting->ambient;
break;
}
case gl::shader::defaultparam_e::diffuse: {
src = lighting->diffuse;
break;
}
case gl::shader::defaultparam_e::specular: {
src = lighting->specular;
break;
}
default: {
break;
}
}
}
// material-based parameters
switch( entry.defaultparam ) {
case gl::shader::defaultparam_e::glossiness: {
src = glm::vec4 { material.glossiness };
}
default: {
break;
}
}
if( entry.size == 1 ) {
// HACK: convert color to luminosity, if it's passed as single value
src = glm::vec4 { colors::RGBtoHSV( glm::vec3 { src } ).z };
}
for (size_t j = 0; j < entry.size; j++)
model_ubs.param[entry.location][entry.offset + j] = src[j];
}
/*
if (m_blendingenabled)
{
model_ubs.opacity = -1.0f;
}
else
{
if (!std::isnan(material.opacity))
model_ubs.opacity = material.opacity;
else
model_ubs.opacity = 0.5f;
}
*/
if( !std::isnan( material.opacity ) ) {
model_ubs.opacity = (
m_blendingenabled ?
-material.opacity :
material.opacity );
}
else {
model_ubs.opacity = (
m_blendingenabled ?
0.0f :
0.5f );
}
if (sm)
model_ubs.alpha_mult = sm->fVisible;
else
model_ubs.alpha_mult = 1.0f;
if (GLAD_GL_ARB_multi_bind)
{
GLuint lastdiff = 0;
size_t i;
for (i = 0; i < gl::MAX_TEXTURES; i++)
if (material.textures[i] != null_handle)
{
opengl_texture &tex = m_textures.mark_as_used(material.textures[i]);
tex.create();
if (opengl_texture::units[i] != tex.id)
{
opengl_texture::units[i] = tex.id;
lastdiff = i + 1;
}
}
else
break;
if (lastdiff)
glBindTextures(0, lastdiff, &opengl_texture::units[0]);
}
else
{
size_t unit = 0;
for (auto &tex : material.textures)
{
if (tex == null_handle)
break;
m_textures.bind(unit, tex);
unit++;
}
}
material.shader->bind();
}
else if (Material != m_invalid_material)
Bind_Material(m_invalid_material);
}
void opengl33_renderer::Bind_Material_Shadow(material_handle const Material)
{
if (Material != null_handle)
{
auto &material = m_materials.material(Material);
if (material.textures[0] != null_handle)
{
m_textures.bind(0, material.textures[0]);
m_alpha_shadow_shader->bind();
}
else {
m_shadow_shader->bind();
}
}
else {
m_shadow_shader->bind();
}
}
opengl_material const &opengl33_renderer::Material(material_handle const Material) const
{
return m_materials.material(Material);
}
opengl_material &opengl33_renderer::Material(material_handle const Material)
{
return m_materials.material(Material);
}
texture_handle opengl33_renderer::Fetch_Texture(std::string const &Filename, bool const Loadnow, GLint format_hint)
{
return m_textures.create(Filename, Loadnow, format_hint);
}
void opengl33_renderer::Bind_Texture( texture_handle const Texture )
{
return Bind_Texture( 0, Texture );
}
void opengl33_renderer::Bind_Texture(std::size_t const Unit, texture_handle const Texture)
{
m_textures.bind(Unit, Texture);
}
opengl_texture &opengl33_renderer::Texture(texture_handle const Texture)
{
return m_textures.texture(Texture);
}
opengl_texture const &opengl33_renderer::Texture(texture_handle const Texture) const
{
return m_textures.texture(Texture);
}
void opengl33_renderer::Update_AnimModel(TAnimModel *model)
{
model->RaAnimate(m_framestamp);
}
void opengl33_renderer::Render(scene::basic_region *Region)
{
m_sectionqueue.clear();
m_cellqueue.clear();
// build a list of region sections to render
glm::vec3 const cameraposition{m_renderpass.pass_camera.position()};
auto const camerax = static_cast<int>(std::floor(cameraposition.x / scene::EU07_SECTIONSIZE + scene::EU07_REGIONSIDESECTIONCOUNT / 2));
auto const cameraz = static_cast<int>(std::floor(cameraposition.z / scene::EU07_SECTIONSIZE + scene::EU07_REGIONSIDESECTIONCOUNT / 2));
int const segmentcount = 2 * static_cast<int>(std::ceil(m_renderpass.draw_range * Global.fDistanceFactor / scene::EU07_SECTIONSIZE));
int const originx = camerax - segmentcount / 2;
int const originz = cameraz - segmentcount / 2;
for (int row = originz; row <= originz + segmentcount; ++row)
{
if (row < 0)
{
continue;
}
if (row >= scene::EU07_REGIONSIDESECTIONCOUNT)
{
break;
}
for (int column = originx; column <= originx + segmentcount; ++column)
{
if (column < 0)
{
continue;
}
if (column >= scene::EU07_REGIONSIDESECTIONCOUNT)
{
break;
}
auto *section{Region->m_sections[row * scene::EU07_REGIONSIDESECTIONCOUNT + column]};
if ((section != nullptr) && (m_renderpass.pass_camera.visible(section->m_area)))
{
m_sectionqueue.emplace_back(section);
}
}
}
switch (m_renderpass.draw_mode)
{
case rendermode::color:
{
Render(std::begin(m_sectionqueue), std::end(m_sectionqueue));
// draw queue is filled while rendering sections
if (EditorModeFlag && m_current_viewport->main)
{
// when editor mode is active calculate world position of the cursor
// at this stage the z-buffer is filled with only ground geometry
Update_Mouse_Position();
}
Render(std::begin(m_cellqueue), std::end(m_cellqueue));
break;
}
case rendermode::shadows:
case rendermode::pickscenery:
{
// these render modes don't bother with lights
Render(std::begin(m_sectionqueue), std::end(m_sectionqueue));
// they can also skip queue sorting, as they only deal with opaque geometry
// NOTE: there's benefit from rendering front-to-back, but is it significant enough? TODO: investigate
Render(std::begin(m_cellqueue), std::end(m_cellqueue));
break;
}
case rendermode::reflections:
{
Render(std::begin(m_sectionqueue), std::end(m_sectionqueue));
if( Global.reflectiontune.fidelity >= 1 ) {
Render(std::begin(m_cellqueue), std::end(m_cellqueue));
}
break;
}
case rendermode::pickcontrols:
default:
{
// no need to render anything ourside of the cab in control picking mode
break;
}
}
}
void opengl33_renderer::Render(section_sequence::iterator First, section_sequence::iterator Last)
{
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
case rendermode::shadows:
break;
case rendermode::pickscenery:
{
// non-interactive scenery elements get neutral colour
model_ubs.param[0] = colors::none;
break;
}
default:
break;
}
while (First != Last)
{
auto *section = *First;
section->create_geometry();
// render shapes held by the section
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
case rendermode::shadows:
case rendermode::pickscenery:
{
if (false == section->m_shapes.empty())
{
// since all shapes of the section share center point we can optimize out a few calls here
::glPushMatrix();
auto const originoffset{section->m_area.center - m_renderpass.pass_camera.position()};
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
// render
for (auto const &shape : section->m_shapes)
{
Render(shape, true);
}
// post-render cleanup
::glPopMatrix();
}
break;
}
case rendermode::pickcontrols:
default:
{
break;
}
}
// add the section's cells to the cell queue
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::shadows:
case rendermode::pickscenery:
{
// TBD, TODO: refactor into a method to reuse below?
for (auto &cell : section->m_cells)
{
if ((true == cell.m_active) && (m_renderpass.pass_camera.visible(cell.m_area)))
{
// store visible cells with content as well as their current distance, for sorting later
m_cellqueue.emplace_back(glm::length2(m_renderpass.pass_camera.position() - cell.m_area.center), &cell);
}
}
break;
}
case rendermode::reflections:
{
// we can skip filling the cell queue if reflections pass isn't going to use it
if( Global.reflectiontune.fidelity == 0 ) { break; }
for (auto &cell : section->m_cells)
{
if ((true == cell.m_active) && (m_renderpass.pass_camera.visible(cell.m_area)))
{
// store visible cells with content as well as their current distance, for sorting later
m_cellqueue.emplace_back(glm::length2(m_renderpass.pass_camera.position() - cell.m_area.center), &cell);
}
}
break;
}
case rendermode::pickcontrols:
default:
{
break;
}
}
// proceed to next section
++First;
}
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
{
break;
}
default:
{
break;
}
}
}
void opengl33_renderer::Render(cell_sequence::iterator First, cell_sequence::iterator Last)
{
// cache initial iterator for the second sweep
auto first{First};
// first pass draws elements which we know are located in section banks, to reduce vbo switching
while (First != Last)
{
auto *cell = First->second;
// przeliczenia animacji torów w sektorze
cell->RaAnimate(m_framestamp);
switch (m_renderpass.draw_mode)
{
case rendermode::color:
{
// since all shapes of the section share center point we can optimize out a few calls here
::glPushMatrix();
auto const originoffset{cell->m_area.center - m_renderpass.pass_camera.position()};
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
// render
// opaque non-instanced shapes
for (auto const &shape : cell->m_shapesopaque)
{
Render(shape, false);
}
// tracks
// TODO: update after path node refactoring
Render(std::begin(cell->m_paths), std::end(cell->m_paths));
// post-render cleanup
::glPopMatrix();
break;
}
case rendermode::reflections:
{
// since all shapes of the section share center point we can optimize out a few calls here
::glPushMatrix();
auto const originoffset{cell->m_area.center - m_renderpass.pass_camera.position()};
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
// render
// opaque non-instanced shapes
for (auto const &shape : cell->m_shapesopaque)
Render(shape, false);
// post-render cleanup
::glPopMatrix();
break;
}
case rendermode::shadows:
{
// since all shapes of the section share center point we can optimize out a few calls here
::glPushMatrix();
auto const originoffset{cell->m_area.center - m_renderpass.pass_camera.position()};
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
// render
// opaque non-instanced shapes
for (auto const &shape : cell->m_shapesopaque)
Render(shape, false);
// tracks
Render(std::begin(cell->m_paths), std::end(cell->m_paths));
// post-render cleanup
::glPopMatrix();
break;
}
case rendermode::pickscenery:
{
// same procedure like with regular render, but editor-enabled nodes receive custom colour used for picking
// since all shapes of the section share center point we can optimize out a few calls here
::glPushMatrix();
auto const originoffset{cell->m_area.center - m_renderpass.pass_camera.position()};
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
// render
// opaque non-instanced shapes
// non-interactive scenery elements get neutral colour
model_ubs.param[0] = colors::none;
for (auto const &shape : cell->m_shapesopaque)
Render(shape, false);
// tracks
for (auto *path : cell->m_paths)
{
model_ubs.param[0] = glm::vec4(pick_color(m_picksceneryitems.size() + 1), 1.0f);
Render(path);
}
// post-render cleanup
::glPopMatrix();
break;
}
case rendermode::pickcontrols:
default:
{
break;
}
}
++First;
}
// second pass draws elements with their own vbos
while (first != Last)
{
auto const *cell = first->second;
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::shadows:
{
// TBD, TODO: refactor in to a method to reuse in branch below?
// opaque parts of instanced models
for (auto *instance : cell->m_instancesopaque)
{
Render(instance);
}
// opaque parts of vehicles
for (auto *path : cell->m_paths)
{
for (auto *dynamic : path->Dynamics)
{
Render(dynamic);
}
}
break;
}
case rendermode::reflections:
{
if( Global.reflectiontune.fidelity >= 1 ) {
// opaque parts of instanced models
for( auto *instance : cell->m_instancesopaque ) {
Render( instance );
}
}
if( Global.reflectiontune.fidelity >= 2 ) {
// opaque parts of vehicles
for( auto *path : cell->m_paths ) {
for( auto *dynamic : path->Dynamics ) {
Render( dynamic );
}
}
}
break;
}
case rendermode::pickscenery:
{
// opaque parts of instanced models
// same procedure like with regular render, but each node receives custom colour used for picking
for (auto *instance : cell->m_instancesopaque)
{
model_ubs.param[0] = glm::vec4(pick_color(m_picksceneryitems.size() + 1), 1.0f);
Render(instance);
}
// vehicles aren't included in scenery picking for the time being
break;
}
case rendermode::pickcontrols:
default:
{
break;
}
}
++first;
}
}
void opengl33_renderer::Draw_Geometry(std::vector<gfx::geometrybank_handle>::iterator begin, std::vector<gfx::geometrybank_handle>::iterator end)
{
m_geometry.draw(begin, end);
}
void opengl33_renderer::Draw_Geometry(const gfx::geometrybank_handle &handle)
{
m_geometry.draw(handle);
}
void opengl33_renderer::draw(const gfx::geometry_handle &handle)
{
model_ubs.set_modelview(OpenGLMatrices.data(GL_MODELVIEW));
model_ubo->update(model_ubs);
m_geometry.draw(handle);
}
void opengl33_renderer::draw(std::vector<gfx::geometrybank_handle>::iterator it, std::vector<gfx::geometrybank_handle>::iterator end)
{
model_ubs.set_modelview(OpenGLMatrices.data(GL_MODELVIEW));
model_ubo->update(model_ubs);
Draw_Geometry(it, end);
}
void opengl33_renderer::Render(scene::shape_node const &Shape, bool const Ignorerange)
{
auto const &data{Shape.data()};
if (false == Ignorerange)
{
double distancesquared;
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
{
// 'camera' for the light pass is the light source, but we need to draw what the 'real' camera sees
distancesquared = Math3D::SquareMagnitude((data.area.center - m_renderpass.viewport_camera.position()) / (double)Global.ZoomFactor) / Global.fDistanceFactor;
break;
}
case rendermode::reflections:
{
// reflection mode draws simplified version of the shapes, by artificially increasing view range
distancesquared =
// TBD, TODO: bind offset value with setting variable?
( EU07_REFLECTIONFIDELITYOFFSET * EU07_REFLECTIONFIDELITYOFFSET )
+ glm::length2( ( data.area.center - m_renderpass.pass_camera.position() ) );
/*
// TBD: take into account distance multipliers?
/ Global.fDistanceFactor;
*/
break;
}
default:
{
distancesquared = glm::length2((data.area.center - m_renderpass.pass_camera.position()) / (double)Global.ZoomFactor) / Global.fDistanceFactor;
break;
}
}
if ((distancesquared < data.rangesquared_min) || (distancesquared >= data.rangesquared_max))
{
return;
}
}
// setup
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
Bind_Material(data.material, nullptr, &Shape.data().lighting );
break;
case rendermode::shadows:
Bind_Material_Shadow(data.material);
break;
case rendermode::pickscenery:
case rendermode::pickcontrols:
m_pick_shader->bind();
break;
default:
break;
}
// render
draw(data.geometry);
// debug data
++m_renderpass.draw_stats.shapes;
++m_renderpass.draw_stats.drawcalls;
}
void opengl33_renderer::Render(TAnimModel *Instance)
{
if (false == Instance->m_visible) { return; }
if( false == m_renderpass.pass_camera.visible( Instance->m_area ) ) { return; }
double distancesquared;
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
{
// 'camera' for the light pass is the light source, but we need to draw what the 'real' camera sees
distancesquared = glm::length2((Instance->location() - m_renderpass.viewport_camera.position()) / (double)Global.ZoomFactor) / Global.fDistanceFactor;
break;
}
case rendermode::reflections:
{
// reflection mode draws simplified version of the shapes, by artificially increasing view range
// it also ignores zoom settings and distance multipliers
// TBD: take into account distance multipliers?
distancesquared = glm::length2((Instance->location() - m_renderpass.pass_camera.position())) /* / Global.fDistanceFactor */;
// NOTE: arbitrary draw range limit
if( distancesquared > Global.reflectiontune.range_instances * Global.reflectiontune.range_instances ) {
return;
}
// TBD, TODO: bind offset value with setting variable?
distancesquared += ( EU07_REFLECTIONFIDELITYOFFSET * EU07_REFLECTIONFIDELITYOFFSET );
break;
}
default:
{
distancesquared = glm::length2((Instance->location() - m_renderpass.pass_camera.position()) / (double)Global.ZoomFactor) / Global.fDistanceFactor;
break;
}
}
if ((distancesquared < Instance->m_rangesquaredmin) || (distancesquared >= Instance->m_rangesquaredmax))
{
return;
}
// crude way to reject early items too far to affect the output (mostly relevant for shadow passes)
auto const drawdistancethreshold{ m_renderpass.draw_range + 250 };
if( distancesquared > drawdistancethreshold * drawdistancethreshold ) {
return;
}
// second stage visibility cull, reject modelstoo far away to be noticeable
auto const radiussquared { Instance->radius() * Instance->radius() };
if( radiussquared * Global.ZoomFactor / distancesquared < 0.003 * 0.003 ) {
return;
}
switch (m_renderpass.draw_mode)
{
case rendermode::pickscenery:
{
// add the node to the pick list
m_picksceneryitems.emplace_back(Instance);
break;
}
default:
{
break;
}
}
Instance->RaAnimate(m_framestamp); // jednorazowe przeliczenie animacji
Instance->RaPrepare();
if (Instance->pModel)
{
// renderowanie rekurencyjne submodeli
Render(Instance->pModel, Instance->Material(), distancesquared, Instance->location() - m_renderpass.pass_camera.position(), Instance->vAngle);
// debug data
++m_renderpass.draw_stats.models;
}
}
bool opengl33_renderer::Render(TDynamicObject *Dynamic)
{
glDebug("Render TDynamicObject");
if (!Global.render_cab && Global.pCamera.m_owner == Dynamic)
return false;
Dynamic->renderme = (
( Global.pCamera.m_owner == Dynamic && !FreeFlyModeFlag )
|| ( m_renderpass.pass_camera.visible( Dynamic ) ) );
if (false == Dynamic->renderme) { return false; }
// setup
TSubModel::iInstance = reinterpret_cast<std::uintptr_t>(Dynamic); //żeby nie robić cudzych animacji
glm::dvec3 const originoffset = Dynamic->vPosition - m_renderpass.pass_camera.position();
// lod visibility ranges are defined for base (x 1.0) viewing distance. for render we adjust them for actual range multiplier and zoom
float squaredistance;
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
{
squaredistance = glm::length2(glm::vec3{glm::dvec3{Dynamic->vPosition - m_renderpass.viewport_camera.position()}} / Global.ZoomFactor);
if( false == FreeFlyModeFlag ) {
// filter out small details if we're in vehicle cab
squaredistance = std::max( 100.f * 100.f, squaredistance );
}
break;
}
case rendermode::reflections:
{
// reflection mode draws simplified version of the shapes, by artificially increasing view range
// it also ignores zoom settings and distance multipliers
squaredistance =
std::max(
100.f * 100.f,
// TBD: take into account distance multipliers?
glm::length2( glm::vec3{ originoffset } ) /* / Global.fDistanceFactor */ );
// NOTE: arbitrary draw range limit
if( squaredistance > Global.reflectiontune.range_vehicles * Global.reflectiontune.range_vehicles ) {
return false;
}
// TBD, TODO: bind offset value with setting variable?
// NOTE: combined 'squared' distance doesn't equal actual squared (distance + offset) but, eh
squaredistance += ( EU07_REFLECTIONFIDELITYOFFSET * EU07_REFLECTIONFIDELITYOFFSET );
break;
}
default:
{
squaredistance = glm::length2(glm::vec3{originoffset} / Global.ZoomFactor);
// TODO: filter out small details based on fidelity setting
break;
}
}
// crude way to reject early items too far to affect the output (mostly relevant for shadow and reflection passes)
auto const drawdistancethreshold{ m_renderpass.draw_range + 250 };
if( squaredistance > drawdistancethreshold * drawdistancethreshold ) {
return false;
}
// second stage visibility cull, reject vehicles too far away to be noticeable
auto const squareradius{ Dynamic->radius() * Dynamic->radius() };
Dynamic->renderme = ( squareradius * Global.ZoomFactor / squaredistance > 0.003 * 0.003 );
if( false == Dynamic->renderme ) {
return false;
}
// debug data
++m_renderpass.draw_stats.dynamics;
Dynamic->ABuLittleUpdate(squaredistance); // ustawianie zmiennych submodeli dla wspólnego modelu
glm::mat4 future_stack = model_ubs.future;
glm::mat4 mv = OpenGLMatrices.data(GL_MODELVIEW);
model_ubs.future *= glm::translate(mv, glm::vec3(Dynamic->get_future_movement())) * glm::inverse(mv);
::glPushMatrix();
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
::glMultMatrixd(Dynamic->mMatrix.getArray());
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
{
if (Dynamic->fShade > 0.0f)
{
// change light level based on light level of the occupied track
setup_sunlight_intensity(Dynamic->fShade);
}
// render
if( Dynamic->mdLowPolyInt ) {
// low poly interior
Render_lowpoly( Dynamic, squaredistance, false );
}
else {
// HACK: if the model lacks low poly interior, we presume the load is placed outside
if( Dynamic->mdLoad ) {
// renderowanie nieprzezroczystego ładunku
Render( Dynamic->mdLoad, Dynamic->Material(), squaredistance, { 0.f, Dynamic->LoadOffset, 0.f }, {} );
}
}
if( Dynamic->mdModel ) {
// main model
Render( Dynamic->mdModel, Dynamic->Material(), squaredistance );
}
// optional attached models
for( auto *attachment : Dynamic->mdAttachments ) {
Render( attachment, Dynamic->Material(), squaredistance );
}
// optional coupling adapters
Render_coupler_adapter( Dynamic, squaredistance, end::front );
Render_coupler_adapter( Dynamic, squaredistance, end::rear );
// post-render cleanup
if (Dynamic->fShade > 0.0f)
{
// restore regular light level
setup_sunlight_intensity();
}
break;
}
case rendermode::shadows:
{
if( Dynamic->mdLowPolyInt ) {
// low poly interior
Render( Dynamic->mdLowPolyInt, Dynamic->Material(), squaredistance );
}
if( Dynamic->mdModel ) {
// main model
Render( Dynamic->mdModel, Dynamic->Material(), squaredistance );
}
// optional attached models
for( auto *attachment : Dynamic->mdAttachments ) {
Render( attachment, Dynamic->Material(), squaredistance );
}
// optional coupling adapters
Render_coupler_adapter( Dynamic, squaredistance, end::front );
Render_coupler_adapter( Dynamic, squaredistance, end::rear );
if( Dynamic->mdLoad ) {
// renderowanie nieprzezroczystego ładunku
Render( Dynamic->mdLoad, Dynamic->Material(), squaredistance, { 0.f, Dynamic->LoadOffset, 0.f }, {} );
}
// post-render cleanup
break;
}
case rendermode::pickcontrols:
{
if (Dynamic->mdLowPolyInt) {
// low poly interior
Render(Dynamic->mdLowPolyInt, Dynamic->Material(), squaredistance);
}
break;
}
case rendermode::pickscenery:
default:
{
break;
}
}
::glPopMatrix();
model_ubs.future = future_stack;
// TODO: check if this reset is needed. In theory each object should render all parts based on its own instance data anyway?
if (Dynamic->btnOn)
Dynamic->TurnOff(); // przywrócenie domyślnych pozycji submodeli
return true;
}
// rendering kabiny gdy jest oddzielnym modelem i ma byc wyswietlana
bool opengl33_renderer::Render_cab(TDynamicObject const *Dynamic, float const Lightlevel, bool const Alpha)
{
if (Dynamic == nullptr)
{
TSubModel::iInstance = 0;
return false;
}
TSubModel::iInstance = reinterpret_cast<std::uintptr_t>(Dynamic);
if ((true == FreeFlyModeFlag) || (false == Dynamic->bDisplayCab) || (Dynamic->mdKabina == Dynamic->mdModel))
{
// ABu: Rendering kabiny jako ostatniej, zeby bylo widac przez szyby, tylko w widoku ze srodka
return false;
}
if (Dynamic->mdKabina)
{ // bo mogła zniknąć przy przechodzeniu do innego pojazdu
// setup shared by all render paths
::glPushMatrix();
auto const originoffset = Dynamic->GetPosition() - m_renderpass.pass_camera.position();
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
::glMultMatrixd(Dynamic->mMatrix.readArray());
switch (m_renderpass.draw_mode)
{
case rendermode::color:
{
// render path specific setup:
if (Dynamic->fShade > 0.0f)
{
// change light level based on light level of the occupied track
setup_sunlight_intensity(Dynamic->fShade);
}
auto const old_ambient { light_ubs.ambient };
auto const luminance { Global.fLuminance * ( Dynamic->fShade > 0.0f ? Dynamic->fShade : 1.0f ) };
if( Lightlevel > 0.f ) {
// crude way to light the cabin, until we have something more complete in place
light_ubs.ambient += ( Dynamic->InteriorLight * Lightlevel ) * static_cast<float>( clamp( 1.25 - luminance, 0.0, 1.0 ) );
light_ubo->update( light_ubs );
}
// render
if (true == Alpha)
{
// translucent parts
Render_Alpha(Dynamic->mdKabina, Dynamic->Material(), 0.0);
}
else
{
// opaque parts
Render(Dynamic->mdKabina, Dynamic->Material(), 0.0);
}
// post-render restore
light_ubs.ambient = old_ambient;
setup_sunlight_intensity();
break;
}
case rendermode::shadows:
{
if( true == Alpha ) {
// translucent parts
Render_Alpha( Dynamic->mdKabina, Dynamic->Material(), 0.0 );
}
else {
// opaque parts
Render( Dynamic->mdKabina, Dynamic->Material(), 0.0 );
}
break;
}
case rendermode::pickcontrols:
{
Render(Dynamic->mdKabina, Dynamic->Material(), 0.0);
break;
}
default:
{
break;
}
}
// post-render restore
::glPopMatrix();
}
return true;
}
bool opengl33_renderer::Render(TModel3d *Model, material_data const *Material, float const Squaredistance)
{
auto alpha = (Material != nullptr ? Material->textures_alpha : 0x30300030);
alpha ^= 0x0F0F000F; // odwrócenie flag tekstur, aby wyłapać nieprzezroczyste
if (0 == (alpha & Model->iFlags & 0x1F1F001F))
{
// czy w ogóle jest co robić w tym cyklu?
return false;
}
Model->Root->fSquareDist = Squaredistance; // zmienna globalna!
// setup
Model->Root->ReplacableSet((Material != nullptr ? Material->replacable_skins : nullptr), alpha);
Model->Root->pRoot = Model;
// render
Render(Model->Root);
// post-render cleanup
return true;
}
bool opengl33_renderer::Render(TModel3d *Model, material_data const *Material, float const Squaredistance, Math3D::vector3 const &Position, glm::vec3 const &A)
{
Math3D::vector3 Angle(A);
::glPushMatrix();
::glTranslated(Position.x, Position.y, Position.z);
if (Angle.y != 0.0)
::glRotated(Angle.y, 0.0, 1.0, 0.0);
if (Angle.x != 0.0)
::glRotated(Angle.x, 1.0, 0.0, 0.0);
if (Angle.z != 0.0)
::glRotated(Angle.z, 0.0, 0.0, 1.0);
auto const result = Render(Model, Material, Squaredistance);
::glPopMatrix();
return result;
}
void opengl33_renderer::Render(TSubModel *Submodel)
{
glDebug("Render TSubModel");
if ((Submodel->iVisible) && (TSubModel::fSquareDist >= Submodel->fSquareMinDist) && (TSubModel::fSquareDist < Submodel->fSquareMaxDist))
{
glm::mat4 future_stack = model_ubs.future;
if (Submodel->iFlags & 0xC000)
{
::glPushMatrix();
if (Submodel->fMatrix)
::glMultMatrixf(Submodel->fMatrix->readArray());
if (Submodel->b_aAnim != TAnimType::at_None)
{
Submodel->RaAnimation(Submodel->b_aAnim);
glm::mat4 mv = OpenGLMatrices.data(GL_MODELVIEW);
model_ubs.future *= (mv * Submodel->future_transform) * glm::inverse(mv);
}
}
if (Submodel->eType < TP_ROTATOR)
{
// renderowanie obiektów OpenGL
if (Submodel->iAlpha & Submodel->iFlags & 0x1F)
{
// rysuj gdy element nieprzezroczysty
// debug data
++m_renderpass.draw_stats.submodels;
++m_renderpass.draw_stats.drawcalls;
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
{
// material configuration:
// transparency hack
if (Submodel->fVisible < 1.0f)
setup_drawing(true);
// textures...
if (Submodel->m_material < 0)
{ // zmienialne skóry
Bind_Material(Submodel->ReplacableSkinId[-Submodel->m_material], Submodel);
}
else
{
// również 0
Bind_Material(Submodel->m_material, Submodel);
}
// ...luminance
auto const isemissive { ( Submodel->f4Emision.a > 0.f ) && ( Global.fLuminance < Submodel->fLight ) };
if (isemissive)
model_ubs.emission = Submodel->f4Emision.a;
// main draw call
draw(Submodel->m_geometry.handle);
// post-draw reset
model_ubs.emission = 0.0f;
if (Submodel->fVisible < 1.0f)
setup_drawing(false);
break;
}
case rendermode::shadows:
{
if (Submodel->m_material < 0)
{ // zmienialne skóry
Bind_Material_Shadow(Submodel->ReplacableSkinId[-Submodel->m_material]);
}
else
{
// również 0
Bind_Material_Shadow(Submodel->m_material);
}
draw(Submodel->m_geometry.handle);
break;
}
case rendermode::pickscenery:
{
m_pick_shader->bind();
draw(Submodel->m_geometry.handle);
break;
}
case rendermode::pickcontrols:
{
if (Submodel->screen_touch_list) {
// touch screen gradient
m_pick_surface_shader->bind();
model_ubs.param[0] = glm::vec4(1.0f - m_picksurfaceitems.size() / 255.0f, 0.0f, 0.0f, 1.0f);
m_picksurfaceitems.emplace_back(Submodel);
}
else {
// control picking applies individual colour for each submodel
m_pick_shader->bind();
m_pickcontrolsitems.emplace_back(Submodel);
model_ubs.param[0] = glm::vec4(pick_color(m_pickcontrolsitems.size()), 1.0f);
}
draw(Submodel->m_geometry.handle);
break;
}
default:
{
break;
}
}
}
}
else if (Submodel->eType == TP_STARS)
{
switch (m_renderpass.draw_mode)
{
// colour points are only rendered in colour mode(s)
case rendermode::color:
case rendermode::reflections:
{
if (Global.fLuminance < Submodel->fLight)
{
Bind_Material(Submodel->m_material, Submodel);
// main draw call
model_ubs.param[1].x = 8.0f;
draw(Submodel->m_geometry.handle);
}
break;
}
default:
{
break;
}
}
}
if (Submodel->Child != nullptr)
if (Submodel->iAlpha & Submodel->iFlags & 0x001F0000)
Render(Submodel->Child);
if (Submodel->iFlags & 0xC000)
{
model_ubs.future = future_stack;
::glPopMatrix();
}
}
/*
if( Submodel->b_Anim < at_SecondsJump )
Submodel->b_Anim = at_None; // wyłączenie animacji dla kolejnego użycia subm
*/
if (Submodel->Next)
if (Submodel->iAlpha & Submodel->iFlags & 0x1F000000)
Render(Submodel->Next); // dalsze rekurencyjnie
}
void opengl33_renderer::Render(TTrack *Track)
{
if ((Track->m_material1 == 0) && (Track->m_material2 == 0) && (Track->eType != tt_Switch || Track->SwitchExtension->m_material3 == 0))
{
return;
}
if (false == Track->m_visible)
{
return;
}
++m_renderpass.draw_stats.paths;
++m_renderpass.draw_stats.drawcalls;
switch (m_renderpass.draw_mode)
{
// single path pieces are rendererd in pick scenery mode only
case rendermode::pickscenery:
{
m_pick_shader->bind();
m_picksceneryitems.emplace_back( Track );
draw(std::begin(Track->Geometry1), std::end(Track->Geometry1));
draw(std::begin(Track->Geometry2), std::end(Track->Geometry2));
if (Track->eType == tt_Switch)
draw(Track->SwitchExtension->Geometry3);
break;
}
default:
{
break;
}
}
}
// experimental, does track rendering in two passes, to take advantage of reduced texture switching
void opengl33_renderer::Render(scene::basic_cell::path_sequence::const_iterator First, scene::basic_cell::path_sequence::const_iterator Last)
{
// setup
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
{
// NOTE: roads-based platforms tend to miss parts of shadows if rendered with either back or front culling
glDisable(GL_CULL_FACE);
break;
}
default:
{
break;
}
}
// TODO: render auto generated trackbeds together with regular trackbeds in pass 1, and all rails in pass 2
// first pass, material 1
for (auto first{First}; first != Last; ++first)
{
auto const track{*first};
if (track->m_material1 == 0)
{
continue;
}
if (false == track->m_visible)
{
continue;
}
++m_renderpass.draw_stats.paths;
++m_renderpass.draw_stats.drawcalls;
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
{
if (track->eEnvironment != e_flat)
{
setup_environment_light(track->eEnvironment);
}
Bind_Material(track->m_material1);
draw(std::begin(track->Geometry1), std::end(track->Geometry1));
if (track->eEnvironment != e_flat)
{
// restore default lighting
setup_environment_light();
}
break;
}
case rendermode::shadows:
{
if ((std::abs(track->fTexHeight1) < 0.35f) || (track->iCategoryFlag != 2))
{
// shadows are only calculated for high enough roads, typically meaning track platforms
continue;
}
Bind_Material_Shadow(track->m_material1);
draw(std::begin(track->Geometry1), std::end(track->Geometry1));
break;
}
case rendermode::pickscenery: // pick scenery mode uses piece-by-piece approach
case rendermode::pickcontrols:
default:
{
break;
}
}
}
// second pass, material 2
for (auto first{First}; first != Last; ++first)
{
auto const track{*first};
if (track->m_material2 == 0)
{
continue;
}
if (false == track->m_visible)
{
continue;
}
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
{
if (track->eEnvironment != e_flat)
{
setup_environment_light(track->eEnvironment);
}
Bind_Material(track->m_material2);
draw(std::begin(track->Geometry2), std::end(track->Geometry2));
if (track->eEnvironment != e_flat)
{
// restore default lighting
setup_environment_light();
}
break;
}
case rendermode::shadows:
{
if ((std::abs(track->fTexHeight1) < 0.35f) || ((track->iCategoryFlag == 1) && (track->eType != tt_Normal)))
{
// shadows are only calculated for high enough trackbeds
continue;
}
Bind_Material_Shadow(track->m_material2);
draw(std::begin(track->Geometry2), std::end(track->Geometry2));
break;
}
case rendermode::pickscenery: // pick scenery mode uses piece-by-piece approach
case rendermode::pickcontrols:
default:
{
break;
}
}
}
// third pass, material 3
for (auto first{First}; first != Last; ++first)
{
auto const track{*first};
if (track->eType != tt_Switch)
{
continue;
}
if (track->SwitchExtension->m_material3 == 0)
{
continue;
}
if (false == track->m_visible)
{
continue;
}
switch (m_renderpass.draw_mode)
{
case rendermode::color:
case rendermode::reflections:
{
if (track->eEnvironment != e_flat)
{
setup_environment_light(track->eEnvironment);
}
Bind_Material(track->SwitchExtension->m_material3);
draw(track->SwitchExtension->Geometry3);
if (track->eEnvironment != e_flat)
{
// restore default lighting
setup_environment_light();
}
break;
}
case rendermode::shadows:
{
if ((std::abs(track->fTexHeight1) < 0.35f) || ((track->iCategoryFlag == 1) && (track->eType != tt_Normal)))
{
// shadows are only calculated for high enough trackbeds
continue;
}
Bind_Material_Shadow(track->SwitchExtension->m_material3);
draw(track->SwitchExtension->Geometry3);
break;
}
case rendermode::pickscenery: // pick scenery mode uses piece-by-piece approach
case rendermode::pickcontrols:
default:
{
break;
}
}
}
// post-render reset
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
{
// restore standard face cull mode
::glEnable(GL_CULL_FACE);
break;
}
default:
{
break;
}
}
}
void opengl33_renderer::Render(TMemCell *Memcell)
{
::glPushMatrix();
auto const position = Memcell->location() - m_renderpass.pass_camera.position();
::glTranslated(position.x, position.y + 0.5, position.z);
switch (m_renderpass.draw_mode)
{
case rendermode::color:
{
break;
}
case rendermode::shadows:
case rendermode::pickscenery:
{
break;
}
case rendermode::reflections:
case rendermode::pickcontrols:
{
break;
}
default:
{
break;
}
}
::glPopMatrix();
}
void opengl33_renderer::Render_particles()
{
model_ubs.set_modelview(OpenGLMatrices.data(GL_MODELVIEW));
model_ubo->update(model_ubs);
Bind_Texture(0, m_smoketexture);
m_particlerenderer.update(m_renderpass.pass_camera);
m_renderpass.draw_stats.particles = m_particlerenderer.render();
}
void opengl33_renderer::Render_vr_models()
{
if (!vr)
return;
glDebug("Render_vr_models");
::glPushMatrix();
glm::dmat4 tmpmat;
Global.pCamera.SetMatrix(tmpmat);
tmpmat = glm::dmat3(tmpmat);
glMultMatrixd(glm::value_ptr(glm::inverse(tmpmat)));
std::vector<TModel3d*> list = vr->get_render_models();
material_data data;
for (TModel3d *mdl : list)
Render(mdl, &data, 0.0);
::glPopMatrix();
}
void opengl33_renderer::Render_precipitation()
{
if (Global.Overcast <= 1.f)
{
return;
}
::glPushMatrix();
// tilt the precipitation cone against the velocity vector for crude motion blur
// include current wind vector while at it
auto const velocity {
simulation::Environment.m_precipitation.m_cameramove * -1.0
+ glm::dvec3{ simulation::Environment.wind() } * 0.5 };
if (glm::length2(velocity) > 0.0)
{
auto const forward{glm::normalize(velocity)};
auto left{glm::cross(forward, {0.0, 1.0, 0.0})};
auto const rotationangle{std::min(45.0, (FreeFlyModeFlag ? 5 * glm::length(velocity) : simulation::Train->Dynamic()->GetVelocity() * 0.2))};
::glRotated(rotationangle, left.x, 0.0, left.z);
}
if (false == FreeFlyModeFlag)
{
// counter potential vehicle roll
auto const roll{0.5 * glm::degrees(simulation::Train->Dynamic()->Roll())};
if (roll != 0.0)
{
auto const forward{simulation::Train->Dynamic()->VectorFront()};
auto const vehicledirection = simulation::Train->Dynamic()->DirectionGet();
::glRotated(roll, forward.x, 0.0, forward.z);
}
}
if (!Global.iPause)
{
if (Global.Weather == "rain:")
// oddly enough random streaks produce more natural looking rain than ones the eye can follow
m_precipitationrotation = LocalRandom() * 360;
else
m_precipitationrotation = 0.0;
}
::glRotated(m_precipitationrotation, 0.0, 1.0, 0.0);
model_ubs.set_modelview(OpenGLMatrices.data(GL_MODELVIEW));
model_ubs.param[0] = interpolate(0.5f * (Global.DayLight.diffuse + Global.DayLight.ambient), colors::white, 0.5f * clamp<float>(Global.fLuminance, 0.f, 1.f));
model_ubs.param[1].x = simulation::Environment.m_precipitation.get_textureoffset();
model_ubo->update(model_ubs);
m_precipitationrenderer.update();
m_precipitationrenderer.render();
::glPopMatrix();
}
void opengl33_renderer::Render_Alpha(scene::basic_region *Region)
{
// sort the nodes based on their distance to viewer
std::sort(std::begin(m_cellqueue), std::end(m_cellqueue), [](distancecell_pair const &Left, distancecell_pair const &Right) { return (Left.first) < (Right.first); });
Render_Alpha(std::rbegin(m_cellqueue), std::rend(m_cellqueue));
}
void opengl33_renderer::Render_Alpha(cell_sequence::reverse_iterator First, cell_sequence::reverse_iterator Last)
{
// NOTE: this method is launched only during color pass therefore we don't bother with mode test here
// first pass draws elements which we know are located in section banks, to reduce vbo switching
{
auto first{First};
while (first != Last)
{
auto const *cell = first->second;
if (false == cell->m_shapestranslucent.empty())
{
// since all shapes of the cell share center point we can optimize out a few calls here
::glPushMatrix();
auto const originoffset{cell->m_area.center - m_renderpass.pass_camera.position()};
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
// render
// NOTE: we can reuse the method used to draw opaque geometry
for (auto const &shape : cell->m_shapestranslucent)
{
Render(shape, false);
}
// post-render cleanup
::glPopMatrix();
}
++first;
}
}
// second pass draws elements with their own vbos
{
auto first{First};
while (first != Last)
{
auto const *cell = first->second;
// translucent parts of instanced models
for (auto *instance : cell->m_instancetranslucent)
{
Render_Alpha(instance);
}
// translucent parts of vehicles
for (auto *path : cell->m_paths)
{
for (auto *dynamic : path->Dynamics)
{
Render_Alpha(dynamic);
}
}
++first;
}
}
// third pass draws the wires;
// wires use section vbos, but for the time being we want to draw them at the very end
{
auto first{First};
while (first != Last)
{
auto const *cell = first->second;
if ((false == cell->m_traction.empty() || (false == cell->m_lines.empty())))
{
// since all shapes of the cell share center point we can optimize out a few calls here
::glPushMatrix();
auto const originoffset{cell->m_area.center - m_renderpass.pass_camera.position()};
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
Bind_Material(null_handle);
// render
for (auto *traction : cell->m_traction)
{
Render_Alpha(traction);
}
for (auto &lines : cell->m_lines)
{
Render_Alpha(lines);
}
// post-render cleanup
::glPopMatrix();
}
++first;
}
}
}
void opengl33_renderer::Render_Alpha(TAnimModel *Instance)
{
if (false == Instance->m_visible) { return; }
if( false == m_renderpass.pass_camera.visible( Instance->m_area ) ) { return; }
double distancesquared;
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
{
// 'camera' for the light pass is the light source, but we need to draw what the 'real' camera sees
distancesquared = glm::length2((Instance->location() - m_renderpass.viewport_camera.position()) / (double)Global.ZoomFactor) / Global.fDistanceFactor;
break;
}
default:
{
distancesquared = glm::length2((Instance->location() - m_renderpass.pass_camera.position()) / (double)Global.ZoomFactor) / Global.fDistanceFactor;
break;
}
}
if ((distancesquared < Instance->m_rangesquaredmin) || (distancesquared >= Instance->m_rangesquaredmax))
{
return;
}
// crude way to reject early items too far to affect the output (mostly relevant for shadow passes)
auto const drawdistancethreshold{ m_renderpass.draw_range + 250 };
if( distancesquared > drawdistancethreshold * drawdistancethreshold ) {
return;
}
// second stage visibility cull, reject modelstoo far away to be noticeable
auto const radiussquared { Instance->radius() * Instance->radius() };
if( radiussquared * Global.ZoomFactor / distancesquared < 0.003 * 0.003 ) {
return;
}
Instance->RaPrepare();
if (Instance->pModel)
{
// renderowanie rekurencyjne submodeli
Render_Alpha(Instance->pModel, Instance->Material(), distancesquared, Instance->location() - m_renderpass.pass_camera.position(), Instance->vAngle);
}
}
void opengl33_renderer::Render_Alpha(TTraction *Traction)
{
glDebug("Render_Alpha TTraction");
auto const distancesquared { glm::length2( ( Traction->location() - m_renderpass.pass_camera.position() ) / (double)Global.ZoomFactor ) / Global.fDistanceFactor };
if ((distancesquared < Traction->m_rangesquaredmin) || (distancesquared >= Traction->m_rangesquaredmax))
{
return;
}
if (false == Traction->m_visible)
{
return;
}
// rysuj jesli sa druty i nie zerwana
if ((Traction->Wires == 0) || (true == TestFlag(Traction->DamageFlag, 128)))
{
return;
}
// setup
auto const distance{static_cast<float>(std::sqrt(distancesquared))};
auto const linealpha = 20.f * Traction->WireThickness / std::max(0.5f * Traction->radius() + 1.f, distance - (0.5f * Traction->radius()));
if (m_widelines_supported)
glLineWidth(clamp(0.5f * linealpha + Traction->WireThickness * Traction->radius() / 1000.f, 1.f, 1.75f));
// render
// McZapkie-261102: kolor zalezy od materialu i zasniedzenia
model_ubs.param[0] = glm::vec4(Traction->wire_color(), glm::min(1.0f, linealpha));
if (m_renderpass.draw_mode == rendermode::shadows)
Bind_Material_Shadow(null_handle);
else
m_line_shader->bind();
draw(Traction->m_geometry);
// debug data
++m_renderpass.draw_stats.traction;
++m_renderpass.draw_stats.drawcalls;
if (m_widelines_supported)
glLineWidth(1.0f);
}
void opengl33_renderer::Render_Alpha(scene::lines_node const &Lines)
{
glDebug("Render_Alpha scene::lines_node");
auto const &data{Lines.data()};
auto const distancesquared { glm::length2( ( data.area.center - m_renderpass.pass_camera.position() ) / (double)Global.ZoomFactor ) / Global.fDistanceFactor };
if ((distancesquared < data.rangesquared_min) || (distancesquared >= data.rangesquared_max))
{
return;
}
// setup
auto const distance{static_cast<float>(std::sqrt(distancesquared))};
auto const linealpha =
(data.line_width > 0.f ? 10.f * data.line_width / std::max(0.5f * data.area.radius + 1.f, distance - (0.5f * data.area.radius)) : 1.f); // negative width means the lines are always opague
if (m_widelines_supported)
glLineWidth(clamp(0.5f * linealpha + data.line_width * data.area.radius / 1000.f, 1.f, 8.f));
model_ubs.param[0] = glm::vec4(glm::vec3(data.lighting.diffuse * m_sunlight.ambient), glm::min(1.0f, linealpha));
if (m_renderpass.draw_mode == rendermode::shadows)
Bind_Material_Shadow(null_handle);
else
m_line_shader->bind();
draw(data.geometry);
++m_renderpass.draw_stats.lines;
++m_renderpass.draw_stats.drawcalls;
if (m_widelines_supported)
glLineWidth(1.0f);
}
bool opengl33_renderer::Render_Alpha(TDynamicObject *Dynamic)
{
if (!Global.render_cab && Global.pCamera.m_owner == Dynamic)
return false;
if (false == Dynamic->renderme)
{
return false;
}
// setup
TSubModel::iInstance = (size_t)Dynamic; //żeby nie robić cudzych animacji
glm::dvec3 const originoffset = Dynamic->vPosition - m_renderpass.pass_camera.position();
// lod visibility ranges are defined for base (x 1.0) viewing distance. for render we adjust them for actual range multiplier and zoom
float squaredistance;
switch (m_renderpass.draw_mode)
{
case rendermode::shadows:
default:
{
squaredistance = glm::length2(glm::vec3{originoffset} / Global.ZoomFactor);
break;
}
}
Dynamic->ABuLittleUpdate(squaredistance); // ustawianie zmiennych submodeli dla wspólnego modelu
glm::mat4 future_stack = model_ubs.future;
glm::mat4 mv = OpenGLMatrices.data(GL_MODELVIEW);
model_ubs.future *= glm::translate(mv, glm::vec3(Dynamic->get_future_movement())) * glm::inverse(mv);
::glPushMatrix();
::glTranslated(originoffset.x, originoffset.y, originoffset.z);
::glMultMatrixd(Dynamic->mMatrix.getArray());
if (Dynamic->fShade > 0.0f)
{
// change light level based on light level of the occupied track
setup_sunlight_intensity(Dynamic->fShade);
}
// render
if( Dynamic->mdLowPolyInt ) {
// low poly interior
Render_Alpha( Dynamic->mdLowPolyInt, Dynamic->Material(), squaredistance );
}
if( Dynamic->mdModel ) {
// main model
Render_Alpha( Dynamic->mdModel, Dynamic->Material(), squaredistance );
}
// optional attached models
for( auto *attachment : Dynamic->mdAttachments ) {
Render_Alpha( attachment, Dynamic->Material(), squaredistance );
}
// optional coupling adapters
Render_coupler_adapter( Dynamic, squaredistance, end::front, true );
Render_coupler_adapter( Dynamic, squaredistance, end::rear, true );
if( Dynamic->mdLoad ) {
// renderowanie nieprzezroczystego ładunku
Render_Alpha( Dynamic->mdLoad, Dynamic->Material(), squaredistance, { 0.f, Dynamic->LoadOffset, 0.f }, {} );
}
// post-render cleanup
if (Dynamic->fShade > 0.0f)
{
// restore regular light level
setup_sunlight_intensity();
}
::glPopMatrix();
model_ubs.future = future_stack;
if (Dynamic->btnOn)
Dynamic->TurnOff(); // przywrócenie domyślnych pozycji submodeli
return true;
}
bool opengl33_renderer::Render_Alpha(TModel3d *Model, material_data const *Material, float const Squaredistance)
{
auto alpha = (Material != nullptr ? Material->textures_alpha : 0x30300030);
if (0 == (alpha & Model->iFlags & 0x2F2F002F))
{
// nothing to render
return false;
}
Model->Root->fSquareDist = Squaredistance; // zmienna globalna!
// setup
Model->Root->ReplacableSet((Material != nullptr ? Material->replacable_skins : nullptr), alpha);
Model->Root->pRoot = Model;
// render
Render_Alpha(Model->Root);
// post-render cleanup
return true;
}
bool opengl33_renderer::Render_Alpha(TModel3d *Model, material_data const *Material, float const Squaredistance, Math3D::vector3 const &Position, glm::vec3 const &A)
{
Math3D::vector3 Angle(A);
::glPushMatrix();
::glTranslated(Position.x, Position.y, Position.z);
if (Angle.y != 0.0)
::glRotated(Angle.y, 0.0, 1.0, 0.0);
if (Angle.x != 0.0)
::glRotated(Angle.x, 1.0, 0.0, 0.0);
if (Angle.z != 0.0)
::glRotated(Angle.z, 0.0, 0.0, 1.0);
auto const result = Render_Alpha(Model, Material, Squaredistance); // position is effectively camera offset
::glPopMatrix();
return result;
}
void opengl33_renderer::Render_Alpha(TSubModel *Submodel)
{
// renderowanie przezroczystych przez DL
if ((Submodel->iVisible) && (TSubModel::fSquareDist >= Submodel->fSquareMinDist) && (TSubModel::fSquareDist < Submodel->fSquareMaxDist))
{
glm::mat4 future_stack = model_ubs.future;
if (Submodel->iFlags & 0xC000)
{
::glPushMatrix();
if (Submodel->fMatrix)
::glMultMatrixf(Submodel->fMatrix->readArray());
if (Submodel->b_aAnim != TAnimType::at_None)
{
Submodel->RaAnimation(Submodel->b_aAnim);
glm::mat4 mv = OpenGLMatrices.data(GL_MODELVIEW);
model_ubs.future *= (mv * Submodel->future_transform) * glm::inverse(mv);
}
}
if (Submodel->eType < TP_ROTATOR)
{
// renderowanie obiektów OpenGL
if (Submodel->iAlpha & Submodel->iFlags & 0x2F)
{
// rysuj gdy element przezroczysty
// debug data
++m_renderpass.draw_stats.submodels;
++m_renderpass.draw_stats.drawcalls;
switch (m_renderpass.draw_mode)
{
case rendermode::color:
{
// material configuration:
// textures...
if (Submodel->m_material < 0)
{ // zmienialne skóry
Bind_Material(Submodel->ReplacableSkinId[-Submodel->m_material], Submodel);
}
else
{
Bind_Material(Submodel->m_material, Submodel);
}
// ...luminance
auto const isemissive { ( Submodel->f4Emision.a > 0.f ) && ( Global.fLuminance < Submodel->fLight ) };
if (isemissive)
model_ubs.emission = Submodel->f4Emision.a;
// main draw call
draw(Submodel->m_geometry.handle);
model_ubs.emission = 0.0f;
break;
}
case rendermode::shadows:
{
if (Submodel->m_material < 0)
{ // zmienialne skóry
Bind_Material_Shadow(Submodel->ReplacableSkinId[-Submodel->m_material]);
}
else
{
Bind_Material_Shadow(Submodel->m_material);
}
draw(Submodel->m_geometry.handle);
break;
}
default:
{
break;
}
}
}
}
else if (Submodel->eType == TP_FREESPOTLIGHT)
{
// NOTE: we're forced here to redo view angle calculations etc, because this data isn't instanced but stored along with the single mesh
// TODO: separate instance data from reusable geometry
auto const &modelview = OpenGLMatrices.data(GL_MODELVIEW);
auto const lightcenter = modelview * interpolate(glm::vec4(0.f, 0.f, -0.05f, 1.f), glm::vec4(0.f, 0.f, -0.25f, 1.f),
static_cast<float>(TSubModel::fSquareDist / Submodel->fSquareMaxDist)); // pozycja punktu świecącego względem kamery
Submodel->fCosViewAngle = glm::dot(glm::normalize(modelview * glm::vec4(0.f, 0.f, -1.f, 1.f) - lightcenter), glm::normalize(-lightcenter));
if (Global.fLuminance < Submodel->fLight || Global.Overcast > 1.0f)
{
if (Submodel->fCosViewAngle > Submodel->fCosFalloffAngle)
{
// only bother if the viewer is inside the visibility cone
// luminosity at night is at level of ~0.1, so the overall resulting transparency in clear conditions is ~0.5 at full 'brightness'
auto glarelevel{clamp(std::max<float>(0.6f - Global.fLuminance, // reduce the glare in bright daylight
Global.Overcast - 1.f), // ensure some glare in rainy/foggy conditions
0.f, 1.f)};
// view angle attenuation
float const anglefactor{clamp((Submodel->fCosViewAngle - Submodel->fCosFalloffAngle) / (Submodel->fCosHotspotAngle - Submodel->fCosFalloffAngle), 0.f, 1.f)};
glarelevel *= anglefactor;
if (glarelevel > 0.0f)
{
glDisable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
::glPushMatrix();
::glLoadIdentity(); // macierz jedynkowa
::glTranslatef(lightcenter.x, lightcenter.y, lightcenter.z); // początek układu zostaje bez zmian
::glRotated(std::atan2(lightcenter.x, lightcenter.z) * 180.0 / M_PI, 0.0, 1.0, 0.0); // jedynie obracamy w pionie o kąt
auto const lightcolor = glm::vec3(Submodel->DiffuseOverride.r < 0.f ? // -1 indicates no override
Submodel->f4Diffuse :
Submodel->DiffuseOverride);
m_billboard_shader->bind();
Bind_Texture(0, m_glaretexture);
model_ubs.param[0] = glm::vec4(glm::vec3(lightcolor), Submodel->fVisible * glarelevel);
// main draw call
if (Submodel->occlusion_query) {
if (!Global.gfx_usegles) {
glBeginConditionalRender(*Submodel->occlusion_query, GL_QUERY_WAIT);
draw(m_billboardgeometry);
glEndConditionalRender();
}
else {
auto result = Submodel->occlusion_query->result();
if (result && *result)
draw(m_billboardgeometry);
}
}
else
draw(m_billboardgeometry);
glEnable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
::glPopMatrix();
}
}
}
if (Submodel->fCosViewAngle > Submodel->fCosFalloffAngle)
{
// kąt większy niż maksymalny stożek swiatła
float lightlevel = 1.f; // TODO, TBD: parameter to control light strength
// view angle attenuation
float const anglefactor = clamp((Submodel->fCosViewAngle - Submodel->fCosFalloffAngle) / (Submodel->fCosHotspotAngle - Submodel->fCosFalloffAngle), 0.f, 1.f);
lightlevel *= anglefactor;
// distance attenuation. NOTE: since it's fixed pipeline with built-in gamma correction we're using linear attenuation
// we're capping how much effect the distance attenuation can have, otherwise the lights get too tiny at regular distances
float const distancefactor{std::max(0.5f, (Submodel->fSquareMaxDist - TSubModel::fSquareDist) / Submodel->fSquareMaxDist)};
auto const pointsize{std::max(3.f, 5.f * distancefactor * anglefactor)};
// additionally reduce light strength for farther sources in rain or snow
if (Global.Overcast > 0.75f)
{
float const precipitationfactor{interpolate(interpolate(1.f, 0.25f, clamp(Global.Overcast * 0.75f - 0.5f, 0.f, 1.f)), 1.f, distancefactor)};
lightlevel *= precipitationfactor;
}
if (lightlevel > 0.f)
{
::glPushMatrix();
::glLoadIdentity();
::glTranslatef(lightcenter.x, lightcenter.y, lightcenter.z); // początek układu zostaje bez zmian
// material configuration:
// limit impact of dense fog on the lights
auto const lightrange { std::max<float>( 500, m_fogrange * 2 ) }; // arbitrary, visibility at least 500m
model_ubs.fog_density = 1.0 / lightrange;
// main draw call
model_ubs.emission = 1.0f;
auto lightcolor = glm::vec3(Submodel->DiffuseOverride.r < 0.f ? // -1 indicates no override
Submodel->f4Diffuse :
Submodel->DiffuseOverride);
m_freespot_shader->bind();
if (Global.Overcast > 1.0f)
{
// fake fog halo
float const fogfactor{interpolate(1.5f, 1.f, clamp(Global.fFogEnd / 2000, 0.f, 1.f)) * std::max(1.f, Global.Overcast)};
model_ubs.param[1].x = pointsize * fogfactor * 4.0f;
model_ubs.param[0] = glm::vec4(glm::vec3(lightcolor), Submodel->fVisible * std::min(1.f, lightlevel) * 0.5f);
draw(Submodel->m_geometry.handle);
}
model_ubs.param[1].x = pointsize * 4.0f;
model_ubs.param[0] = glm::vec4(glm::vec3(lightcolor), Submodel->fVisible * std::min(1.f, lightlevel));
if (gl::vao::use_vao) {
if (!Submodel->occlusion_query)
Submodel->occlusion_query.emplace(gl::query::ANY_SAMPLES_PASSED);
Submodel->occlusion_query->begin();
}
draw(Submodel->m_geometry.handle);
if (gl::vao::use_vao)
Submodel->occlusion_query->end();
// post-draw reset
model_ubs.emission = 0.0f;
model_ubs.fog_density = 1.0f / m_fogrange;
::glPopMatrix();
}
}
}
if (Submodel->Child != nullptr)
{
if (Submodel->eType == TP_TEXT)
{ // tekst renderujemy w specjalny sposób, zamiast submodeli z łańcucha Child
int i, j = (int)Submodel->pasText->size();
TSubModel *p;
if (!Submodel->smLetter)
{ // jeśli nie ma tablicy, to ją stworzyć; miejsce nieodpowiednie, ale tymczasowo może być
Submodel->smLetter = new TSubModel *[256]; // tablica wskaźników submodeli dla wyświetlania tekstu
memset(Submodel->smLetter, 0, 256 * sizeof(TSubModel *)); // wypełnianie zerami
p = Submodel->Child;
while (p)
{
Submodel->smLetter[p->pName[0]] = p;
p = p->Next; // kolejny znak
}
}
for (i = 1; i <= j; ++i)
{
p = Submodel->smLetter[(*(Submodel->pasText))[i]]; // znak do wyświetlenia
if (p)
{ // na razie tylko jako przezroczyste
Render_Alpha(p);
if (p->fMatrix)
::glMultMatrixf(p->fMatrix->readArray()); // przesuwanie widoku
}
}
}
else if (Submodel->iAlpha & Submodel->iFlags & 0x002F0000)
Render_Alpha(Submodel->Child);
}
if (Submodel->iFlags & 0xC000)
{
model_ubs.future = future_stack;
::glPopMatrix();
}
}
/*
if( Submodel->b_aAnim < at_SecondsJump )
Submodel->b_aAnim = at_None; // wyłączenie animacji dla kolejnego użycia submodelu
*/
if (Submodel->Next != nullptr)
if (Submodel->iAlpha & Submodel->iFlags & 0x2F000000)
Render_Alpha(Submodel->Next);
};
bool opengl33_renderer::Debug_Ui_State(std::optional<bool> param)
{
if (param) {
debug_ui_active = *param;
}
return debug_ui_active;
}
// utility methods
void opengl33_renderer::Update_Pick_Control()
{
// context-switch workaround
gl::buffer::unbind();
if (!m_picking_pbo->is_busy())
{
unsigned char pickreadout[4];
if (m_picking_pbo->read_data(1, 1, pickreadout))
{
auto const controlindex = pick_index(glm::ivec3{pickreadout[0], pickreadout[1], pickreadout[2]});
TSubModel const *control{nullptr};
glm::vec2 position(0.0f);
if ((controlindex > 0) && (controlindex <= m_pickcontrolsitems.size())) {
control = m_pickcontrolsitems[controlindex - 1];
} else if (255 - pickreadout[0] < m_picksurfaceitems.size()) {
control = m_picksurfaceitems[255 - pickreadout[0]];
position.x = pickreadout[1] / 255.0f;
position.y = pickreadout[2] / 255.0f;
}
m_pickcontrolitem = control;
for (auto f : m_control_pick_requests)
f(m_pickcontrolitem, position);
m_control_pick_requests.clear();
}
if (!m_control_pick_requests.empty())
{
// determine point to examine
glm::dvec2 mousepos = Application.get_cursor_pos();
mousepos.y = Global.iWindowHeight - mousepos.y; // cursor coordinates are flipped compared to opengl
glm::ivec2 pickbufferpos;
pickbufferpos = glm::ivec2{mousepos.x * EU07_PICKBUFFERSIZE / std::max(1, Global.iWindowWidth), mousepos.y * EU07_PICKBUFFERSIZE / std::max(1, Global.iWindowHeight)};
pickbufferpos = glm::clamp(pickbufferpos, glm::ivec2(0, 0), glm::ivec2(EU07_PICKBUFFERSIZE - 1, EU07_PICKBUFFERSIZE - 1));
Render_pass(*m_viewports.front().get(), rendermode::pickcontrols);
m_pick_fb->bind();
m_picking_pbo->request_read(pickbufferpos.x, pickbufferpos.y, 1, 1);
m_pick_fb->unbind();
}
}
}
void opengl33_renderer::Update_Pick_Node()
{
if (!m_picking_node_pbo->is_busy())
{
unsigned char pickreadout[4];
if (m_picking_node_pbo->read_data(1, 1, pickreadout))
{
auto const nodeindex = pick_index(glm::ivec3{pickreadout[0], pickreadout[1], pickreadout[2]});
scene::basic_node *node{nullptr};
if ((nodeindex > 0) && (nodeindex <= m_picksceneryitems.size()))
{
node = m_picksceneryitems[nodeindex - 1];
}
m_picksceneryitem = node;
for (auto f : m_node_pick_requests)
f(m_picksceneryitem);
m_node_pick_requests.clear();
}
if (!m_node_pick_requests.empty())
{
// determine point to examine
glm::dvec2 mousepos = Application.get_cursor_pos();
mousepos.y = Global.iWindowHeight - mousepos.y; // cursor coordinates are flipped compared to opengl
glm::ivec2 pickbufferpos;
pickbufferpos = glm::ivec2{mousepos.x * EU07_PICKBUFFERSIZE / std::max(1, Global.iWindowWidth), mousepos.y * EU07_PICKBUFFERSIZE / std::max(1, Global.iWindowHeight)};
pickbufferpos = glm::clamp(pickbufferpos, glm::ivec2(0, 0), glm::ivec2(EU07_PICKBUFFERSIZE - 1, EU07_PICKBUFFERSIZE - 1));
Render_pass(*m_viewports.front().get(), rendermode::pickscenery);
m_pick_fb->bind();
m_picking_node_pbo->request_read(pickbufferpos.x, pickbufferpos.y, 1, 1);
m_pick_fb->unbind();
}
}
}
void opengl33_renderer::Pick_Control_Callback(std::function<void(TSubModel const *, const glm::vec2 pos)> callback)
{
if (!Global.render_cab) {
callback(nullptr, glm::vec2());
return;
}
m_control_pick_requests.push_back(callback);
}
void opengl33_renderer::Pick_Node_Callback(std::function<void(scene::basic_node *)> callback)
{
m_node_pick_requests.push_back(callback);
}
glm::dvec3 opengl33_renderer::Update_Mouse_Position()
{
if (!m_depth_pointer_pbo->is_busy())
{
// determine point to examine
glm::dvec2 mousepos = Application.get_cursor_pos();
mousepos.y = Global.iWindowHeight - mousepos.y; // cursor coordinates are flipped compared to opengl
glm::ivec2 bufferpos;
bufferpos = glm::ivec2{mousepos.x * Global.gfx_framebuffer_width / std::max(1, Global.iWindowWidth), mousepos.y * Global.gfx_framebuffer_height / std::max(1, Global.iWindowHeight)};
bufferpos = glm::clamp(bufferpos, glm::ivec2(0, 0), glm::ivec2(Global.gfx_framebuffer_width - 1, Global.gfx_framebuffer_height - 1));
float pointdepth = std::numeric_limits<float>::max();
if (!Global.gfx_usegles)
{
m_depth_pointer_pbo->read_data(1, 1, &pointdepth, 4);
if (!Global.iMultisampling)
{
m_depth_pointer_pbo->request_read(bufferpos.x, bufferpos.y, 1, 1, 4, GL_DEPTH_COMPONENT, GL_FLOAT);
}
else if (Global.gfx_skippipeline)
{
gl::framebuffer::blit(nullptr, m_depth_pointer_fb.get(), bufferpos.x, bufferpos.y, 1, 1, GL_DEPTH_BUFFER_BIT, 0);
m_depth_pointer_fb->bind();
m_depth_pointer_pbo->request_read(0, 0, 1, 1, 4, GL_DEPTH_COMPONENT, GL_FLOAT);
m_depth_pointer_fb->unbind();
}
else
{
gl::framebuffer::blit(m_viewports.front()->msaa_fb.get(), m_depth_pointer_fb.get(), bufferpos.x, bufferpos.y, 1, 1, GL_DEPTH_BUFFER_BIT, 0);
m_depth_pointer_fb->bind();
m_depth_pointer_pbo->request_read(0, 0, 1, 1, 4, GL_DEPTH_COMPONENT, GL_FLOAT);
m_viewports.front()->msaa_fb->bind();
}
}
else
{
unsigned int data[4];
if (m_depth_pointer_pbo->read_data(1, 1, data, 16))
pointdepth = (double)data[0] / 65535.0;
if (Global.gfx_skippipeline)
{
gl::framebuffer::blit(nullptr, m_depth_pointer_fb.get(), 0, 0, Global.gfx_framebuffer_width, Global.gfx_framebuffer_height, GL_DEPTH_BUFFER_BIT, 0);
m_empty_vao->bind();
m_depth_pointer_tex->bind(0);
m_depth_pointer_shader->bind();
m_depth_pointer_fb2->bind();
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
m_depth_pointer_pbo->request_read(bufferpos.x, bufferpos.y, 1, 1, 16, GL_RGBA_INTEGER, GL_UNSIGNED_INT);
m_depth_pointer_shader->unbind();
m_empty_vao->unbind();
m_depth_pointer_fb2->unbind();
}
else
{
gl::framebuffer::blit(m_viewports.front()->msaa_fb.get(), m_depth_pointer_fb.get(), 0, 0, Global.gfx_framebuffer_width, Global.gfx_framebuffer_height, GL_DEPTH_BUFFER_BIT, 0);
m_empty_vao->bind();
m_depth_pointer_tex->bind(0);
m_depth_pointer_shader->bind();
m_depth_pointer_fb2->bind();
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
m_depth_pointer_pbo->request_read(bufferpos.x, bufferpos.y, 1, 1, 16, GL_RGBA_INTEGER, GL_UNSIGNED_INT);
m_depth_pointer_shader->unbind();
m_empty_vao->unbind();
m_viewports.front()->msaa_fb->bind();
}
}
if (pointdepth != std::numeric_limits<float>::max())
{
if (GLAD_GL_ARB_clip_control || GLAD_GL_EXT_clip_control) {
if (pointdepth > 0.0f)
m_worldmousecoordinates = glm::unProjectZO(glm::vec3(bufferpos, pointdepth), glm::mat4(glm::mat3(m_colorpass.pass_camera.modelview())), m_colorpass.pass_camera.projection(),
glm::vec4(0, 0, Global.gfx_framebuffer_width, Global.gfx_framebuffer_height));
} else if (pointdepth < 1.0f)
m_worldmousecoordinates = glm::unProjectNO(glm::vec3(bufferpos, pointdepth), glm::mat4(glm::mat3(m_colorpass.pass_camera.modelview())), m_colorpass.pass_camera.projection(),
glm::vec4(0, 0, Global.gfx_framebuffer_width, Global.gfx_framebuffer_height));
}
}
return m_colorpass.pass_camera.position() + glm::dvec3{m_worldmousecoordinates};
}
void opengl33_renderer::Update(double const Deltatime)
{
Update_Pick_Control();
Update_Pick_Node();
m_updateaccumulator += Deltatime;
if (m_updateaccumulator < 1.0)
{
// too early for any work
return;
}
m_updateaccumulator = 0.0;
m_framerate = 1000.f / ( Timer::subsystem.mainloop_total.average() );
// adjust draw ranges etc, based on recent performance
if (Global.targetfps != 0.0f) {
float fps_diff = Global.targetfps - m_framerate;
if (fps_diff > 0.0f)
Global.fDistanceFactor = std::max(0.5f, Global.fDistanceFactor - 0.05f);
else
Global.fDistanceFactor = std::min(3.0f, Global.fDistanceFactor + 0.05f);
}
if( Global.UpdateMaterials ) {
// update resources if there was environmental change
simulation_state simulationstate {
Global.Weather,
Global.Season
};
std::swap( m_simulationstate, simulationstate );
if( ( m_simulationstate.season != simulationstate.season ) && ( false == simulationstate.season.empty() ) ) {
m_materials.on_season_change();
}
if( ( m_simulationstate.weather != simulationstate.weather ) && ( false == simulationstate.weather.empty() ) ) {
m_materials.on_weather_change();
}
}
if ((true == Global.ResourceSweep) && (true == simulation::is_ready))
{
// garbage collection
m_geometry.update();
m_textures.update();
}
if ((true == Global.ControlPicking) && (false == FreeFlyModeFlag))
Pick_Control_Callback([](const TSubModel *, const glm::vec2) {});
// temporary conditions for testing. eventually will be coupled with editor mode
if ((true == Global.ControlPicking) && (true == DebugModeFlag) && (true == FreeFlyModeFlag))
Pick_Node_Callback([](scene::basic_node *) {});
// dump last opengl error, if any
auto const glerror = ::glGetError();
if (glerror != GL_NO_ERROR)
{
std::string glerrorstring;
if (glerror == GL_INVALID_ENUM)
glerrorstring = "GL_INVALID_ENUM";
else if (glerror == GL_INVALID_VALUE)
glerrorstring = "GL_INVALID_VALUE";
else if (glerror == GL_INVALID_OPERATION)
glerrorstring = "GL_INVALID_OPERATION";
else if (glerror == GL_OUT_OF_MEMORY)
glerrorstring = "GL_OUT_OF_MEMORY";
else if (glerror == GL_INVALID_FRAMEBUFFER_OPERATION)
glerrorstring = "GL_INVALID_FRAMEBUFFER_OPERATION";
Global.LastGLError = std::to_string(glerror) + " (" + glerrorstring + ")";
}
}
// debug performance string
std::string const &opengl33_renderer::info_times() const
{
return m_debugtimestext;
}
std::string const &opengl33_renderer::info_stats() const
{
return m_debugstatstext;
}
void opengl33_renderer::Update_Lights(light_array &Lights)
{
glDebug("Update_Lights");
Bind_Texture( gl::HEADLIGHT_TEX, m_headlightstexture );
// arrange the light array from closest to farthest from current position of the camera
auto const camera = m_colorpass.pass_camera.position();
std::sort(
std::begin(Lights.data), std::end(Lights.data),
[&camera](light_array::light_record const &Left, light_array::light_record const &Right) {
// move lights which are off at the end...
if (Left.intensity == 0.f) { return false; }
if (Right.intensity == 0.f) { return true; }
// ...otherwise prefer closer and/or brigher light sources
return (glm::length2(camera - Left.position) / Left.intensity) < (glm::length2(camera - Right.position) / Right.intensity);
});
// set up helpers
glm::mat4 coordmove;
if (GLAD_GL_ARB_clip_control || GLAD_GL_EXT_clip_control)
// transform 1..-1 NDC xy coordinates to 1..0
coordmove = glm::mat4( //
0.5, 0.0, 0.0, 0.0, //
0.0, 0.5, 0.0, 0.0, //
0.0, 0.0, 1.0, 0.0, //
0.5, 0.5, 0.0, 1.0 //
);
else
// without clip_control we also need to transform z
coordmove = glm::mat4( //
0.5, 0.0, 0.0, 0.0, //
0.0, 0.5, 0.0, 0.0, //
0.0, 0.0, 0.5, 0.0, //
0.5, 0.5, 0.5, 1.0 //
);
glm::mat4 mv = OpenGLMatrices.data( GL_MODELVIEW );
// fill vehicle headlights data
auto renderlight = m_lights.begin();
size_t light_i = 1;
for (auto const &scenelight : Lights.data)
{
if (renderlight == m_lights.end()) {
// we ran out of lights to assign
break;
}
if (scenelight.intensity == 0.f) {
// all lights past this one are bound to be off
break;
}
auto const lightoffset = glm::vec3{scenelight.position - camera};
if (glm::length(lightoffset) > 1000.f) {
// we don't care about lights past arbitrary limit of 1 km.
// but there could still be weaker lights which are closer, so keep looking
continue;
}
// if the light passed tests so far, it's good enough
renderlight->position = lightoffset;
renderlight->direction = scenelight.direction;
auto luminance = static_cast<float>(Global.fLuminance);
// adjust luminance level based on vehicle's location, e.g. tunnels
auto const environment = scenelight.owner->fShade;
if (environment > 0.f)
{
luminance *= environment;
}
renderlight->diffuse = glm::vec4{glm::max(glm::vec3{colors::none}, scenelight.color - glm::vec3{luminance}), renderlight->diffuse[3]};
renderlight->ambient = glm::vec4{glm::max(glm::vec3{colors::none}, scenelight.color * glm::vec3{scenelight.intensity} - glm::vec3{luminance}), renderlight->ambient[3]};
renderlight->apply_intensity( ( scenelight.count * 0.5 ) * ( scenelight.owner->DimHeadlights ? 0.5 : 1.0 ) );
renderlight->apply_angle();
gl::light_element_ubs *light = &light_ubs.lights[light_i];
light->pos = mv * glm::vec4(renderlight->position, 1.0f);
light->dir = mv * glm::vec4(renderlight->direction, 0.0f);
light->type = gl::light_element_ubs::HEADLIGHTS;
light->in_cutoff = headlight_config.in_cutoff;
light->out_cutoff = headlight_config.out_cutoff;
light->color = renderlight->diffuse * renderlight->factor;
light->linear = headlight_config.falloff_linear / 10.0f;
light->quadratic = headlight_config.falloff_quadratic / 100.0f;
light->ambient = headlight_config.ambient;
light->intensity = headlight_config.intensity;
// headlights-to-world projection
{
// headlight projection is 1 km long box aligned with vehicle rotation and aimed slightly downwards
opengl_camera headlights;
auto const &ownerdimensions{ scenelight.owner->MoverParameters->Dim };
auto const up{ static_cast<glm::dvec3>( scenelight.owner->VectorUp() ) };
auto const size{ static_cast<float>( std::max( ownerdimensions.W, ownerdimensions.H ) * 1.0 ) }; // ensure square ratio
auto const cone{ 5.f };
auto const offset{ 75.f * ( 5.f / cone ) };
headlights.position() =
scenelight.owner->GetPosition()
- scenelight.direction * offset
+ up * ( size * 0.5 );
/*
headlights.projection() = ortho_projection(
-size, size,
-size, size,
ownerdimensions.L * 0.5 - 0.5, 1000.0f );
*/
headlights.projection() = perspective_projection_raw(
glm::radians( cone ),
1.0,
ownerdimensions.L * 0.5 + offset - 0.25, 1000.0f );
glm::dmat4 viewmatrix{ 1.0 };
viewmatrix *=
glm::lookAt(
headlights.position(),
headlights.position()
- up * 1.0
+ glm::dvec3{ scenelight.direction * 1000.f },
glm::dvec3{ 0.f, 1.f, 0.f } );
headlights.modelview() = viewmatrix;
// calculate world->headlight space projection matrix
glm::mat4 const depthproj{ headlights.projection() };
// NOTE: we strip transformations from camera projections to remove jitter that occurs
// with large (and unneded as we only need the offset) transformations back and forth
auto const lightcam{ glm::mat3{ headlights.modelview() } };
auto const worldcam{ glm::mat3{ m_renderpass.pass_camera.modelview() } };
light->headlight_projection =
coordmove
* depthproj
* glm::translate(
glm::mat4{ lightcam },
glm::vec3{ m_renderpass.pass_camera.position() - headlights.position() } )
* glm::mat4{ glm::inverse( worldcam ) };
}
// headlights weights
light->headlight_weights = { scenelight.state, 0.f };
++light_i;
++renderlight;
}
light_ubs.lights_count = light_i;
// fill sunlight data
light_ubs.ambient = m_sunlight.ambient * m_sunlight.factor;// *simulation::Environment.light_intensity();
light_ubs.lights[0].type = gl::light_element_ubs::DIR;
light_ubs.lights[0].dir = mv * glm::vec4(m_sunlight.direction, 0.0f);
light_ubs.lights[0].color = m_sunlight.diffuse * m_sunlight.factor * simulation::Environment.light_intensity();
light_ubs.lights[0].ambient = 0.0f;
light_ubs.lights[0].intensity = 1.0f;
// fill fog data
light_ubs.fog_color = Global.FogColor;
if (Global.fFogEnd > 0)
{
m_fogrange = Global.fFogEnd / std::max(1.f, Global.Overcast * 2.f);
model_ubs.fog_density = 1.0f / m_fogrange;
}
else
{
model_ubs.fog_density = 0.0f;
}
// ship config data to the gpu
model_ubo->update(model_ubs);
light_ubo->update(light_ubs);
}
bool opengl33_renderer::Init_caps()
{
WriteLog("MaSzyna OpenGL Renderer");
WriteLog("Renderer: " + std::string((char *)glGetString(GL_RENDERER)));
WriteLog("Vendor: " + std::string((char *)glGetString(GL_VENDOR)));
WriteLog("GL version: " + std::string((char *)glGetString(GL_VERSION)));
WriteLog("--------");
GLint extCount = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &extCount);
WriteLog("Supported extensions:");
for (int i = 0; i < extCount; i++)
{
const char *ext = (const char *)glGetStringi(GL_EXTENSIONS, i);
WriteLog(ext);
}
WriteLog("--------");
if (!Global.gfx_usegles)
{
if (!GLAD_GL_VERSION_3_3)
{
ErrorLog("requires OpenGL >= 3.3!");
return false;
}
if (!GLAD_GL_EXT_texture_sRGB)
ErrorLog("EXT_texture_sRGB not supported!");
if (!GLAD_GL_EXT_texture_compression_s3tc)
ErrorLog("EXT_texture_compression_s3tc not supported!");
if (GLAD_GL_ARB_texture_filter_anisotropic)
WriteLog("ARB_texture_filter_anisotropic supported!");
if (GLAD_GL_ARB_multi_bind)
WriteLog("ARB_multi_bind supported!");
if (GLAD_GL_ARB_direct_state_access)
WriteLog("ARB_direct_state_access supported!");
if (GLAD_GL_ARB_clip_control)
WriteLog("ARB_clip_control supported!");
}
else
{
if (!GLAD_GL_ES_VERSION_3_0)
{
ErrorLog("requires OpenGL ES >= 3.0!");
return false;
}
if (GLAD_GL_EXT_texture_filter_anisotropic)
WriteLog("EXT_texture_filter_anisotropic supported!");
if (GLAD_GL_EXT_clip_control)
WriteLog("EXT_clip_control supported!");
if (GLAD_GL_EXT_geometry_shader)
WriteLog("EXT_geometry_shader supported!");
}
glGetError();
glLineWidth(2.0f);
if (!glGetError())
{
WriteLog("wide lines supported!");
m_widelines_supported = true;
}
else
WriteLog("warning: wide lines not supported");
WriteLog("--------");
// ograniczenie maksymalnego rozmiaru tekstur - parametr dla skalowania tekstur
{
GLint texturesize;
::glGetIntegerv(GL_MAX_TEXTURE_SIZE, &texturesize);
Global.iMaxTextureSize = std::min(Global.iMaxTextureSize, texturesize);
Global.iMaxCabTextureSize = std::min( Global.iMaxCabTextureSize, texturesize );
WriteLog( "texture sizes capped at " + std::to_string(Global.iMaxTextureSize) + "p (" + std::to_string( Global.iMaxCabTextureSize ) + "p for cab textures)" );
Global.CurrentMaxTextureSize = Global.iMaxTextureSize;
m_shadowbuffersize = Global.shadowtune.map_size;
m_shadowbuffersize = std::min(m_shadowbuffersize, texturesize);
WriteLog("shadows map size capped at " + std::to_string(m_shadowbuffersize) + "p");
}
Global.DynamicLightCount = std::min(Global.DynamicLightCount, 8);
if (Global.iMultisampling)
{
WriteLog("using multisampling x" + std::to_string(1 << Global.iMultisampling));
}
if (Global.gfx_framebuffer_width == -1)
Global.gfx_framebuffer_width = Global.iWindowWidth;
if (Global.gfx_framebuffer_height == -1)
Global.gfx_framebuffer_height = Global.iWindowHeight;
WriteLog("main window size: " + std::to_string(Global.gfx_framebuffer_width) + "x" + std::to_string(Global.gfx_framebuffer_height));
return true;
}
glm::vec3 opengl33_renderer::pick_color(std::size_t const Index)
{
return glm::vec3{((Index & 0xff0000) >> 16) / 255.0f, ((Index & 0x00ff00) >> 8) / 255.0f, (Index & 0x0000ff) / 255.0f};
}
std::size_t opengl33_renderer::pick_index(glm::ivec3 const &Color)
{
return Color.b + (Color.g * 256) + (Color.r * 256 * 256);
}
std::unique_ptr<gfx_renderer> opengl33_renderer::create_func()
{
return std::unique_ptr<gfx_renderer>(new opengl33_renderer());
}
bool opengl33_renderer::renderer_register = gfx_renderer_factory::get_instance()->register_backend("modern", opengl33_renderer::create_func);