mirror of
https://github.com/MaSzyna-EU07/maszyna.git
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231 lines
10 KiB
C++
231 lines
10 KiB
C++
#include "stdafx.h"
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#include "glsl_common.h"
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std::string gl::glsl_common;
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void gl::glsl_common_setup()
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{
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glsl_common =
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"#define SHADOWMAP_ENABLED " + std::to_string((int)Global.gfx_shadowmap_enabled) + "\n" +
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"#define ENVMAP_ENABLED " + std::to_string((int)Global.gfx_envmap_enabled) + "\n" +
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"#define MOTIONBLUR_ENABLED " + std::to_string((int)Global.gfx_postfx_motionblur_enabled) + "\n" +
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"#define POSTFX_ENABLED " + std::to_string((int)!Global.gfx_skippipeline) + "\n" +
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"#define EXTRAEFFECTS_ENABLED " + std::to_string((int)Global.gfx_extraeffects) + "\n" +
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"#define MAX_LIGHTS " + std::to_string(MAX_LIGHTS) + "U\n" +
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"#define MAX_CASCADES " + std::to_string(MAX_CASCADES) + "U\n" +
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"#define MAX_PARAMS " + std::to_string(MAX_PARAMS) + "U\n" +
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"#define INSTANCE_SSBO_BINDING " + std::to_string(INSTANCE_SSBO_BINDING) + "\n" +
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"#define INSTANCE_RECORD_SSBO_BINDING " + std::to_string(INSTANCE_RECORD_SSBO_BINDING) + "\n" +
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"#define INSTANCE_JOB_SSBO_BINDING " + std::to_string(INSTANCE_JOB_SSBO_BINDING) + "\n" +
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"#define INSTANCE_GROUP_SSBO_BINDING " + std::to_string(INSTANCE_GROUP_SSBO_BINDING) + "\n" +
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"#define INSTANCE_LOD_SSBO_BINDING " + std::to_string(INSTANCE_LOD_SSBO_BINDING) + "\n" +
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"#define INSTANCE_COUNTER_SSBO_BINDING " + std::to_string(INSTANCE_COUNTER_SSBO_BINDING) + "\n" +
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"#define INSTANCE_OUTPUT_SSBO_BINDING " + std::to_string(INSTANCE_OUTPUT_SSBO_BINDING) + "\n" +
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"#define INSTANCE_COMMAND_SSBO_BINDING " + std::to_string(INSTANCE_COMMAND_SSBO_BINDING) + "\n" +
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"#define INSTANCE_CULL_GROUP_SIZE " + std::to_string(INSTANCE_CULL_GROUP_SIZE) + "\n" +
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"#define INSTANCE_OFFSETS_GROUP_SIZE " + std::to_string(INSTANCE_OFFSETS_GROUP_SIZE) + "\n" +
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"#define INSTANCE_COMMAND_GROUP_SIZE " + std::to_string(INSTANCE_COMMAND_GROUP_SIZE) + "\n" +
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"#define HIZ_GROUP_SIZE " + std::to_string(HIZ_GROUP_SIZE) + "\n" +
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"#define INSTANCE_COUNTER_HEADER " + std::to_string(INSTANCE_COUNTER_HEADER) + "\n" +
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"#define LIGHT_SSBO_BINDING " + std::to_string(LIGHT_SSBO_BINDING) + "\n" +
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"#define CLUSTER_GRID_X " + std::to_string(CLUSTER_GRID_X) + "\n" +
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"#define CLUSTER_GRID_Y " + std::to_string(CLUSTER_GRID_Y) + "\n" +
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"#define CLUSTER_GRID_Z " + std::to_string(CLUSTER_GRID_Z) + "\n" +
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"#define CLUSTER_COUNT " + std::to_string(CLUSTER_COUNT) + "\n" +
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"#define MAX_LIGHTS_PER_CLUSTER " + std::to_string(MAX_LIGHTS_PER_CLUSTER) + "\n" +
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"#define CLUSTER_BUILD_GROUP_SIZE " + std::to_string(CLUSTER_BUILD_GROUP_SIZE) + "\n" +
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"#define CLUSTER_CULL_GROUP_SIZE " + std::to_string(CLUSTER_CULL_GROUP_SIZE) + "\n" +
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"#define CLUSTER_UBO_BINDING " + std::to_string(CLUSTER_UBO_BINDING) + "\n" +
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"#define CLUSTER_AABB_SSBO_BINDING " + std::to_string(CLUSTER_AABB_SSBO_BINDING) + "\n" +
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"#define CLUSTER_RANGE_SSBO_BINDING " + std::to_string(CLUSTER_RANGE_SSBO_BINDING) + "\n" +
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"#define CLUSTER_INDEX_SSBO_BINDING " + std::to_string(CLUSTER_INDEX_SSBO_BINDING) + "\n" +
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"#define CLUSTER_COUNTER_SSBO_BINDING " + std::to_string(CLUSTER_COUNTER_SSBO_BINDING) + "\n" +
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"#define ENVMAP_GGX_LEVELS " + std::to_string(ENVMAP_GGX_LEVELS) + "\n" +
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"#define ENVMAP_GGX_ROUGHNESS_MIN " + std::to_string(ENVMAP_GGX_ROUGHNESS_MIN) + "\n" +
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"#define ENVMAP_GGX_GROUP_SIZE " + std::to_string(ENVMAP_GGX_GROUP_SIZE) + "\n" +
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"#define SKY_SSBO_BINDING " + std::to_string(SKY_SSBO_BINDING) + "\n" +
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"#define EXPOSURE_SSBO_BINDING " + std::to_string(EXPOSURE_SSBO_BINDING) + "\n" +
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"#define EXPOSURE_HISTOGRAM_BINS " + std::to_string(EXPOSURE_HISTOGRAM_BINS) + "\n" +
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"#define EXPOSURE_HISTOGRAM_GROUP_SIZE " + std::to_string(EXPOSURE_HISTOGRAM_GROUP_SIZE) + "\n" +
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"#define ATMOSPHERE_UBO_BINDING " + std::to_string(ATMOSPHERE_UBO_BINDING) + "\n" +
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"#define ATMOSPHERE_RESULT_SSBO_BINDING " + std::to_string(ATMOSPHERE_RESULT_SSBO_BINDING) + "\n" +
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"#define ATMOSPHERE_TRANSMITTANCE_WIDTH " + std::to_string(ATMOSPHERE_TRANSMITTANCE_WIDTH) + "\n" +
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"#define ATMOSPHERE_TRANSMITTANCE_HEIGHT " + std::to_string(ATMOSPHERE_TRANSMITTANCE_HEIGHT) + "\n" +
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"#define ATMOSPHERE_MULTISCATTERING_SIZE " + std::to_string(ATMOSPHERE_MULTISCATTERING_SIZE) + "\n" +
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"#define ATMOSPHERE_SKYVIEW_WIDTH " + std::to_string(ATMOSPHERE_SKYVIEW_WIDTH) + "\n" +
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"#define ATMOSPHERE_SKYVIEW_HEIGHT " + std::to_string(ATMOSPHERE_SKYVIEW_HEIGHT) + "\n" +
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"#define ATMOSPHERE_AMBIENT_GROUP_SIZE " + std::to_string(ATMOSPHERE_AMBIENT_GROUP_SIZE) + "\n" +
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"#define ATMOSPHERE_TRANSMITTANCE_UNIT " + std::to_string(ATMOSPHERE_TRANSMITTANCE_UNIT) + "\n" +
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"#define ATMOSPHERE_MULTISCATTERING_UNIT " + std::to_string(ATMOSPHERE_MULTISCATTERING_UNIT) + "\n" +
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"#define ATMOSPHERE_SKYVIEW_UNIT " + std::to_string(ATMOSPHERE_SKYVIEW_UNIT) + "\n" +
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"#define SKY_VIEW_TEX " + std::to_string(SKY_VIEW_TEX) + "\n" +
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"#define LOCAL_SHADOW_TEX " + std::to_string(LOCAL_SHADOW_TEX) + "\n" +
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"#define LOCAL_SHADOW_LAMPS_TEX " + std::to_string(LOCAL_SHADOW_LAMPS_TEX) + "\n" +
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R"STRING(
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const uint LIGHT_SPOT = 0U;
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const uint LIGHT_POINT = 1U;
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const uint LIGHT_DIR = 2U;
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const uint LIGHT_HEADLIGHTS = 3U;
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struct light_s
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{
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vec3 pos;
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uint type;
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vec3 dir;
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float in_cutoff;
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vec3 color;
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float out_cutoff;
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float linear;
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float quadratic;
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float intensity;
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float ambient;
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mat4 headlight_projection;
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vec4 headlight_weights;
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};
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// storage blocks are guaranteed only in fragment and compute shaders (GL 4.6 minimum for the other stages is 0)
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#if defined(STAGE_FRAGMENT) || defined(STAGE_COMPUTE)
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layout(std430, binding = LIGHT_SSBO_BINDING) readonly buffer light_ssbo
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{
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vec3 ambient;
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// lights stored in lights[], what the cluster culling goes through
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uint lights_total;
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vec3 fog_color;
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// lights the shading loop goes through when the lights are not clustered
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uint lights_count;
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// 1 if the shading takes the lights from the list of the cluster of a fragment, see cluster_ubo
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uint lights_clustered;
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// scale of the directional part of the sky ambient light, see sky_ssbo
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float sky_ambient_factor;
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// 1 if rough reflections come from the prefiltered environment map
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uint env_ggx;
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light_s lights[];
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};
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// directional part of the sky ambient light: real spherical harmonics (bands 1 and 2, band 0 is ambient) of the light
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// a surface facing a world space direction gets, in units of ambient. see gl::sky_data
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layout(std430, binding = SKY_SSBO_BINDING) readonly buffer sky_ssbo
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{
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vec4 sky_ambient_sh[9];
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};
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#endif
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// light clusters, see gl/cluster_grid.h
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struct cluster_aabb_s
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{
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vec4 lower;
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vec4 upper;
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};
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struct cluster_range_s
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{
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uint offset;
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uint count;
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};
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#if defined(STAGE_FRAGMENT) || defined(STAGE_COMPUTE)
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// parameters of the grid for the pass being drawn
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layout(std140, binding = CLUSTER_UBO_BINDING) uniform cluster_ubo
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{
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mat4 cluster_projection;
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float cluster_znear;
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float cluster_zfar;
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float cluster_slice_scale;
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float cluster_slice_bias;
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vec2 cluster_viewport_size;
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uint cluster_valid;
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};
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// the compute passes fill the cluster buffers, shading only reads them
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#ifdef STAGE_COMPUTE
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#define CLUSTER_SSBO_ACCESS
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layout(std430, binding = CLUSTER_AABB_SSBO_BINDING) buffer cluster_aabb_ssbo
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{
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cluster_aabb_s cluster_aabbs[];
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};
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layout(std430, binding = CLUSTER_COUNTER_SSBO_BINDING) buffer cluster_counter_ssbo
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{
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uint cluster_index_count;
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uint cluster_overflow_count;
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};
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#else
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#define CLUSTER_SSBO_ACCESS readonly
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#endif
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layout(std430, binding = CLUSTER_RANGE_SSBO_BINDING) CLUSTER_SSBO_ACCESS buffer cluster_range_ssbo
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{
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cluster_range_s cluster_ranges[];
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};
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layout(std430, binding = CLUSTER_INDEX_SSBO_BINDING) CLUSTER_SSBO_ACCESS buffer cluster_index_ssbo
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{
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uint cluster_light_indices[];
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};
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#endif
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layout (std140) uniform model_ubo
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{
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mat4 modelview;
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mat3 modelviewnormal;
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vec4 param[MAX_PARAMS];
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mat4 future;
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float opacity;
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float emission;
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float fog_density;
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float alpha_mult;
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float shadow_tone;
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};
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layout (std140) uniform scene_ubo
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{
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mat4 projection;
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mat4 inv_view;
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mat4 lightview[MAX_CASCADES];
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vec3 cascade_end;
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float time;
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vec4 rain_params;
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vec4 wiper_pos;
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vec4 wiper_timer_out;
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vec4 wiper_timer_return;
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};
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#ifdef STAGE_VERTEX
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// Per-instance modelview matrices for GPU-instanced draws, element 0 is identity.
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// Draws which aren't instanced have gl_BaseInstance == 0 and gl_InstanceID == 0,
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// so effective_modelview() reduces to model_ubo.modelview. For instanced draws
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// the C++ side uploads camera-space root transforms of the instances and draws
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// them from base instance onwards, with model_ubo.modelview set to the submodel-local
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// chain (computed from identity, NOT from the camera/instance), so the product
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// gives the correct final transform per instance per submodel.
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layout(std430, binding = INSTANCE_SSBO_BINDING) readonly buffer instance_ssbo
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{
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mat4 instance_modelview[];
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};
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mat4 effective_modelview() {
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return instance_modelview[gl_BaseInstance + gl_InstanceID] * modelview;
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}
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mat3 effective_modelviewnormal() {
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// instance_modelview can include per-instance scale (uniform or per-axis),
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// so its upper-3x3 is NOT its own inverse-transpose in the non-uniform
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// case. Compute the correct normal matrix via transpose(inverse(...)).
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// For pure rotation+translation this still produces the rotation matrix
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// (one extra mat3 inverse per vertex — modern GPUs handle it cheaply).
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mat3 instance_mv3 = mat3(instance_modelview[gl_BaseInstance + gl_InstanceID]);
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mat3 instance_normal = transpose(inverse(instance_mv3));
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return instance_normal * modelviewnormal;
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}
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#endif
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)STRING";
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}
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