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Code Issues 121 Wiki Activity

shadow visibilty fixes, more strict degenerate triangle detection

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This commit is contained in:
tmj-fstate
2017-07-27 18:23:48 +02:00
parent 000603877c
commit bb58156513
10 changed files with 173 additions and 139 deletions
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239
renderer.cpp
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@@ -62,6 +62,9 @@ opengl_renderer::Init( GLFWwindow *Window ) {
m_window = Window;
::glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
::glPixelStorei( GL_PACK_ALIGNMENT, 1 );
glClearDepth( 1.0f );
glClearColor( 51.0f / 255.0f, 102.0f / 255.0f, 85.0f / 255.0f, 1.0f ); // initial background Color
@@ -126,6 +129,16 @@ opengl_renderer::Init( GLFWwindow *Window ) {
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" );
if( m_helpertextureunit >= 0 ) {
m_reflectiontexture = Fetch_Texture( "fx\\reflections" );
}
WriteLog( "...gfx data pre-loading done" );
#ifdef EU07_USE_PICKING_FRAMEBUFFER
// pick buffer resources
if( true == m_framebuffersupport ) {
@@ -159,18 +172,6 @@ opengl_renderer::Init( GLFWwindow *Window ) {
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 ); // switch back to primary render target for now
}
#endif
::glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
// 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" );
if( m_helpertextureunit >= 0 ) {
m_reflectiontexture = Fetch_Texture( "fx\\reflections" );
}
WriteLog( "...gfx data pre-loading done" );
// shadowmap resources
if( ( true == Global::RenderShadows )
&& ( true == m_framebuffersupport ) ) {
@@ -188,16 +189,27 @@ opengl_renderer::Init( GLFWwindow *Window ) {
::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE );
::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL );
::glTexParameteri( GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_LUMINANCE );
// eye_linear is the default, so we could probably skip it
::glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR );
::glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR );
::glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR );
::glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR );
::glBindTexture( GL_TEXTURE_2D, 0 );
#ifdef EU07_USE_DEBUG_SHADOWMAP
::glGenTextures( 1, &m_shadowdebugtexture );
::glBindTexture( GL_TEXTURE_2D, m_shadowdebugtexture );
// allocate memory
::glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA8, m_shadowbuffersize, m_shadowbuffersize, 0, GL_BGRA, GL_UNSIGNED_BYTE, NULL );
// setup parameters
::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
::glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
::glBindTexture( GL_TEXTURE_2D, 0 );
#endif
// create and assemble the framebuffer
::glGenFramebuffersEXT( 1, &m_shadowframebuffer );
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, m_shadowframebuffer );
#ifdef EU07_USE_DEBUG_SHADOWMAP
::glFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, m_shadowdebugtexture, 0 );
#else
::glDrawBuffer( GL_NONE ); // we won't be rendering colour data, so can skip the colour attachment
#endif
::glFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, m_shadowtexture, 0 );
// check if we got it working
GLenum status = ::glCheckFramebufferStatusEXT( GL_FRAMEBUFFER_EXT );
@@ -210,7 +222,6 @@ opengl_renderer::Init( GLFWwindow *Window ) {
Global::RenderShadows = false;
}
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 ); // switch back to primary render target for now
::glDrawBuffer( GL_BACK );
}
// prepare basic geometry chunks
@@ -258,25 +269,15 @@ opengl_renderer::Render_pass( rendermode const Mode ) {
if( Global::RenderShadows && World.InitPerformed() ) {
// run shadowmap pass before color
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, m_shadowframebuffer );
::glDrawBuffer( GL_NONE ); // we won't be rendering colour data, so can skip the colour attachment
Render_pass( rendermode::shadows );
#ifdef EU07_USE_DEBUG_SHADOWMAP
UILayer.set_texture( m_shadowdebugtexture );
#endif
m_renderpass.draw_mode = rendermode::color; // restore draw mode. TODO: render mode stack
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 ); // switch back to primary render target
::glDrawBuffer( GL_BACK );
}
if( ( Global::iTextMode == GLFW_KEY_F8 ) && ( Global::iScreenMode[ GLFW_KEY_F8 - GLFW_KEY_F1 ] == 1 ) ) {
// debug shadowmap
::glViewport( 0, 0, Global::ScreenHeight, Global::ScreenHeight );
m_renderpass.draw_range = 1250.f; // 1.0km square centered around camera
}
else {
::glViewport( 0, 0, Global::ScreenWidth, Global::ScreenHeight );
m_renderpass.draw_range = 2500.0f; // arbitrary base draw range
}
::glViewport( 0, 0, Global::ScreenWidth, Global::ScreenHeight );
m_renderpass.draw_range = 2500.0f; // arbitrary base draw range
if( World.InitPerformed() ) {
auto const skydomecolour = World.Environment.m_skydome.GetAverageColor();
@@ -304,7 +305,7 @@ opengl_renderer::Render_pass( rendermode const Mode ) {
setup_drawing( true );
Render_Alpha( &World.Ground );
// cab render is performed without shadows, due to low resolution and number of models without windows :|
toggle_units( true, false, false );
switch_units( true, false, false );
// cab render is done in translucent phase to deal with badly configured vehicles
if( World.Train != nullptr ) { Render_cab( World.Train->Dynamic() ); }
}
@@ -316,13 +317,20 @@ opengl_renderer::Render_pass( rendermode const Mode ) {
if( World.InitPerformed() ) {
// setup
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, m_shadowframebuffer );
::glViewport( 0, 0, m_shadowbuffersize, m_shadowbuffersize );
::glClear( GL_DEPTH_BUFFER_BIT );
#ifdef EU07_USE_DEBUG_SHADOWMAP
::glClearColor( 0.f / 255.0f, 0.f / 255.0f, 0.f / 255.f, 1.f ); // initial background Color
::glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
#else
::glClear( GL_DEPTH_BUFFER_BIT );
#endif
::glScissor( 1, 1, m_shadowbuffersize - 2, m_shadowbuffersize - 2 );
::glEnable( GL_SCISSOR_TEST );
m_renderpass.draw_range = 1250.f; // 1.0km square centered around camera
m_renderpass.draw_range = Global::shadowtune.depth; // 1.0km square centered around camera
m_shadowtexturematrix =
glm::mat4{
0.5f, 0.0f, 0.0f, 0.0f,
@@ -333,27 +341,32 @@ opengl_renderer::Render_pass( rendermode const Mode ) {
setup_camera();
::glDepthFunc( GL_LEQUAL );
::glEnable( GL_POLYGON_OFFSET_FILL ); // alleviate depth-fighting
::glPolygonOffset( 4.f, 8.f );
::glPolygonOffset( 2.f, 4.f );
// render
// opaque parts...
setup_drawing( false );
#ifdef EU07_USE_DEBUG_SHADOWMAP
setup_units( true, false, false );
#else
setup_units( false, false, false );
#endif
Render( &World.Ground );
// post-render restore
::glDisable( GL_POLYGON_OFFSET_FILL );
::glDisable( GL_SCISSOR_TEST );
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 ); // switch back to primary render target
}
break;
}
case rendermode::pickcontrols: {
#ifdef EU07_USE_PICKING_FRAMEBUFFER
::glViewport( 0, 0, m_pickbuffersize, m_pickbuffersize );
#endif
if( World.InitPerformed() ) {
// setup
::glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
#ifdef EU07_USE_PICKING_FRAMEBUFFER
::glViewport( 0, 0, m_pickbuffersize, m_pickbuffersize );
#endif
::glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
::glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
m_pickcontrolsitems.clear();
@@ -367,19 +380,18 @@ opengl_renderer::Render_pass( rendermode const Mode ) {
setup_units( false, false, false );
// cab render skips translucent parts, so we can do it here
if( World.Train != nullptr ) { Render_cab( World.Train->Dynamic() ); }
// post-render cleanup
}
// post-render cleanup
break;
}
case rendermode::pickscenery: {
#ifdef EU07_USE_PICKING_FRAMEBUFFER
::glViewport( 0, 0, m_pickbuffersize, m_pickbuffersize );
#endif
if( World.InitPerformed() ) {
// setup
::glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
#ifdef EU07_USE_PICKING_FRAMEBUFFER
::glViewport( 0, 0, m_pickbuffersize, m_pickbuffersize );
#endif
::glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
::glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
m_picksceneryitems.clear();
@@ -392,6 +404,7 @@ opengl_renderer::Render_pass( rendermode const Mode ) {
setup_drawing( false );
setup_units( false, false, false );
Render( &World.Ground );
// post-render cleanup
}
break;
}
@@ -416,17 +429,7 @@ opengl_renderer::setup_projection() {
case rendermode::pickscenery:
#endif
case rendermode::color: {
if( ( Global::iTextMode == GLFW_KEY_F8 ) && ( Global::iScreenMode[ GLFW_KEY_F8 - GLFW_KEY_F1 ] == 1 ) ) {
// debug shadowmap
#ifdef EU07_USE_ORTHO_SHADOWS
setup_projection_light_ortho();
#else
setup_projection_light_perspective();
#endif
}
else {
setup_projection_world();
}
setup_projection_world();
break;
}
#ifdef EU07_USE_PICKING_FRAMEBUFFER
@@ -471,11 +474,11 @@ opengl_renderer::setup_projection_world() {
void
opengl_renderer::setup_projection_light_ortho() {
// TODO: calculate lightview boundaries based on area of the world camera frustum
::glOrtho(
-250, 250,
-250, 250,
-2500, 2500 );
-Global::shadowtune.width, Global::shadowtune.width,
-Global::shadowtune.width, Global::shadowtune.width,
-Global::shadowtune.depth, Global::shadowtune.depth );
}
void
@@ -484,7 +487,7 @@ opengl_renderer::setup_projection_light_perspective() {
::gluPerspective(
45.f,
1.f,
100.f, // light source is pulled back far enough we won't likely have anything too close to it, can get some z-range here
m_renderpass.draw_range * 0.1f, // light source is pulled back far enough we won't likely have anything too close to it, can get some z-range here
m_renderpass.draw_range * Global::fDistanceFactor );
}
@@ -501,16 +504,7 @@ opengl_renderer::setup_camera() {
case rendermode::color:
case rendermode::pickcontrols:
case rendermode::pickscenery: {
if( ( Global::iTextMode == GLFW_KEY_F8 ) && ( Global::iScreenMode[ GLFW_KEY_F8 - GLFW_KEY_F1 ] == 1 ) ) {
#ifdef EU07_USE_ORTHO_SHADOWS
setup_camera_light_ortho( viewmatrix );
#else
setup_camera_light_perspective( viewmatrix );
#endif
}
else {
setup_camera_world( viewmatrix );
}
setup_camera_world( viewmatrix );
break;
}
case rendermode::shadows: {
@@ -544,19 +538,12 @@ opengl_renderer::setup_camera_world( glm::dmat4 &Viewmatrix ) {
void
opengl_renderer::setup_camera_light_ortho( glm::dmat4 &Viewmatrix ) {
/*
m_renderpass.camera.position() = Global::pCameraPosition - glm::dvec3{ Global::DayLight.direction * 250.f };
m_renderpass.camera.position().y = std::max( 75.0, m_renderpass.camera.position().y ); // prevent shadow source from dipping too low
Viewmatrix = glm::lookAt(
m_renderpass.camera.position(),
glm::dvec3{ Global::pCameraPosition.x, 0.0, Global::pCameraPosition.z },
glm::dvec3{ 0.f, 1.f, 0.f } );
*/
m_renderpass.camera.position() = Global::pCameraPosition - glm::dvec3{ Global::DayLight.direction };
if( m_renderpass.camera.position().y - Global::pCameraPosition.y < 0.15 ) {
m_renderpass.camera.position().y = Global::pCameraPosition.y + 0.15;
if( m_renderpass.camera.position().y - Global::pCameraPosition.y < 0.1 ) {
m_renderpass.camera.position().y = Global::pCameraPosition.y + 0.1;
}
Viewmatrix = glm::lookAt(
Viewmatrix *= glm::lookAt(
m_renderpass.camera.position(),
glm::dvec3{ Global::pCameraPosition },
glm::dvec3{ 0.f, 1.f, 0.f } );
@@ -567,9 +554,9 @@ opengl_renderer::setup_camera_light_perspective( glm::dmat4 &Viewmatrix ) {
m_renderpass.camera.position() = Global::pCameraPosition - glm::dvec3{ Global::DayLight.direction * m_renderpass.draw_range * 0.5f };
m_renderpass.camera.position().y = std::max<float>( m_renderpass.draw_range * 0.5f * 0.1f, m_renderpass.camera.position().y ); // prevent shadow source from dipping too low
Viewmatrix = glm::lookAt(
Viewmatrix *= glm::lookAt(
m_renderpass.camera.position(),
glm::dvec3{ Global::pCameraPosition.x, 0.0, Global::pCameraPosition.z },
glm::dvec3{ Global::pCameraPosition },
glm::dvec3{ 0.f, 1.f, 0.f } );
}
@@ -607,6 +594,7 @@ opengl_renderer::setup_drawing( bool const Alpha ) {
case rendermode::shadows:
case rendermode::pickcontrols:
case rendermode::pickscenery: {
::glColor4fv( glm::value_ptr( colors::white ) );
::glDisable( GL_LIGHTING );
::glShadeModel( GL_FLAT );
if( Global::iMultisampling ) {
@@ -631,7 +619,7 @@ opengl_renderer::setup_units( bool const Diffuse, bool const Shadows, bool const
if( ( true == Global::RenderShadows ) && ( true == Shadows ) ) {
// setup reflection texture unit
::glActiveTexture( m_helpertextureunit );
::glBindTexture( GL_TEXTURE_2D, m_reflectiontexture ); // TODO: move to reflection unit setup
Bind( m_reflectiontexture ); // TBD, TODO: move to reflection unit setup
::glEnable( GL_TEXTURE_2D );
/*
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP );
@@ -648,7 +636,7 @@ opengl_renderer::setup_units( bool const Diffuse, bool const Shadows, bool const
::glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_CONSTANT );
::glTexEnvi( GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR );
::glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE ); // simply copy alpha from diffuse stage
::glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE ); // pass the previous stage alpha down the chain
::glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_PREVIOUS );
}
else {
@@ -692,7 +680,7 @@ opengl_renderer::setup_units( bool const Diffuse, bool const Shadows, bool const
::glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE2_RGB, GL_TEXTURE );
::glTexEnvi( GL_TEXTURE_ENV, GL_OPERAND2_RGB, GL_SRC_COLOR );
::glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE ); // simply copy alpha from diffuse stage
::glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE ); // pass the previous stage alpha down the chain
::glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_PREVIOUS );
}
else {
@@ -737,7 +725,7 @@ opengl_renderer::setup_units( bool const Diffuse, bool const Shadows, bool const
// enables and disables specified texture units
void
opengl_renderer::toggle_units( bool const Diffuse, bool const Shadows, bool const Reflections ) {
opengl_renderer::switch_units( bool const Diffuse, bool const Shadows, bool const Reflections ) {
// helper texture unit.
if( m_helpertextureunit >= 0 ) {
if( ( true == Global::RenderShadows ) && ( true == Shadows ) ) {
@@ -1098,7 +1086,6 @@ opengl_renderer::Render( TGroundRect *Groundcell ) {
// non-interactive scenery elements get neutral colour
::glColor3fv( glm::value_ptr( colors::none ) );
}
case rendermode::shadows:
case rendermode::color: {
if( Groundcell->nRenderRect != nullptr ) {
// nieprzezroczyste trójkąty kwadratu kilometrowego
@@ -1108,6 +1095,17 @@ opengl_renderer::Render( TGroundRect *Groundcell ) {
}
break;
}
case rendermode::shadows: {
if( Groundcell->nRenderRect != nullptr ) {
// experimental, for shadows render both back and front faces, to supply back faces of the 'forest strips'
::glDisable( GL_CULL_FACE );
// nieprzezroczyste trójkąty kwadratu kilometrowego
for( TGroundNode *node = Groundcell->nRenderRect; node != nullptr; node = node->nNext3 ) {
Render( node );
}
::glEnable( GL_CULL_FACE );
}
}
case rendermode::pickcontrols:
default: {
break;
@@ -1240,7 +1238,7 @@ opengl_renderer::Render( TGroundNode *Node ) {
double distancesquared;
switch( m_renderpass.draw_mode ) {
case rendermode::shadows: {
// 'camera' for the light pass is the light source, but we need distance from actual camera
// 'camera' for the light pass is the light source, but we need to draw what the 'real' camera sees
distancesquared = SquareMagnitude( ( Node->pCenter - Global::pCameraPosition ) / Global::ZoomFactor );
break;
}
@@ -1304,6 +1302,7 @@ opengl_renderer::Render( TGroundNode *Node ) {
Render(
Node->Model->pModel,
Node->Model->Material(),
// 'camera' for the light pass is the light source, but we need to draw what the 'real' camera sees
SquareMagnitude( Node->pCenter - Global::pCameraPosition ),
Node->pCenter - m_renderpass.camera.position(),
Node->Model->vAngle );
@@ -2032,7 +2031,7 @@ opengl_renderer::Render_Alpha( TGroundNode *Node ) {
double distancesquared;
switch( m_renderpass.draw_mode ) {
case rendermode::shadows: {
// 'camera' for the light pass is the light source, but we need distance from actual camera
// 'camera' for the light pass is the light source, but we need to draw what the 'real' camera sees
distancesquared = SquareMagnitude( ( Node->pCenter - Global::pCameraPosition ) / Global::ZoomFactor );
break;
}
@@ -2104,6 +2103,7 @@ opengl_renderer::Render_Alpha( TGroundNode *Node ) {
Render_Alpha(
Node->Model->pModel,
Node->Model->Material(),
// 'camera' for the light pass is the light source, but we need to draw what the 'real' camera sees
SquareMagnitude( Node->pCenter - Global::pCameraPosition ),
Node->pCenter - m_renderpass.camera.position(),
Node->Model->vAngle );
@@ -2502,15 +2502,8 @@ opengl_renderer::Update_Pick_Control() {
#ifdef EU07_USE_PICKING_FRAMEBUFFER
if( true == m_framebuffersupport ) {
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, m_pickframebuffer );
::glReadBuffer( GL_COLOR_ATTACHMENT0_EXT );
}
else {
::glReadBuffer( GL_BACK );
}
#else
::glReadBuffer( GL_BACK );
#endif
Render_pass( rendermode::pickcontrols );
// determine point to examine
glm::dvec2 mousepos;
@@ -2518,13 +2511,22 @@ opengl_renderer::Update_Pick_Control() {
mousepos.y = Global::ScreenHeight - mousepos.y; // cursor coordinates are flipped compared to opengl
#ifdef EU07_USE_PICKING_FRAMEBUFFER
glm::ivec2 pickbufferpos {
mousepos.x * m_pickbuffersize / Global::ScreenWidth,
mousepos.y * m_pickbuffersize / Global::ScreenHeight };
glm::ivec2 pickbufferpos;
if( true == m_framebuffersupport ) {
// ::glReadBuffer( GL_COLOR_ATTACHMENT0_EXT );
pickbufferpos = glm::ivec2{
mousepos.x * m_pickbuffersize / Global::ScreenWidth,
mousepos.y * m_pickbuffersize / Global::ScreenHeight
};
}
else {
// ::glReadBuffer( GL_BACK );
pickbufferpos = glm::ivec2{ mousepos };
}
#else
// ::glReadBuffer( GL_BACK );
glm::ivec2 pickbufferpos{ mousepos };
#endif
unsigned char pickreadout[4];
::glReadPixels( pickbufferpos.x, pickbufferpos.y, 1, 1, GL_BGRA, GL_UNSIGNED_BYTE, pickreadout );
auto const controlindex = pick_index( glm::ivec3{ pickreadout[ 2 ], pickreadout[ 1 ], pickreadout[ 0 ] } );
@@ -2548,15 +2550,8 @@ opengl_renderer::Update_Pick_Node() {
#ifdef EU07_USE_PICKING_FRAMEBUFFER
if( true == m_framebuffersupport ) {
::glBindFramebufferEXT( GL_FRAMEBUFFER_EXT, m_pickframebuffer );
::glReadBuffer( GL_COLOR_ATTACHMENT0_EXT );
}
else {
::glReadBuffer( GL_BACK );
}
#else
::glReadBuffer( GL_BACK );
#endif
Render_pass( rendermode::pickscenery );
// determine point to examine
glm::dvec2 mousepos;
@@ -2564,13 +2559,23 @@ opengl_renderer::Update_Pick_Node() {
mousepos.y = Global::ScreenHeight - mousepos.y; // cursor coordinates are flipped compared to opengl
#ifdef EU07_USE_PICKING_FRAMEBUFFER
glm::ivec2 pickbufferpos {
mousepos.x * m_pickbuffersize / Global::ScreenWidth,
mousepos.y * m_pickbuffersize / Global::ScreenHeight };
glm::ivec2 pickbufferpos;
if( true == m_framebuffersupport ) {
// ::glReadBuffer( GL_COLOR_ATTACHMENT0_EXT );
pickbufferpos = glm::ivec2{
mousepos.x * m_pickbuffersize / Global::ScreenWidth,
mousepos.y * m_pickbuffersize / Global::ScreenHeight
};
}
else {
// ::glReadBuffer( GL_BACK );
pickbufferpos = glm::ivec2{ mousepos };
}
#else
// ::glReadBuffer( GL_BACK );
glm::ivec2 pickbufferpos{ mousepos };
#endif
unsigned char pickreadout[4];
::glReadPixels( pickbufferpos.x, pickbufferpos.y, 1, 1, GL_BGRA, GL_UNSIGNED_BYTE, pickreadout );
auto const nodeindex = pick_index( glm::ivec3{ pickreadout[ 2 ], pickreadout[ 1 ], pickreadout[ 0 ] } );
@@ -2663,7 +2668,7 @@ opengl_renderer::Update( double const Deltatime ) {
};
// debug performance string
std::string
std::string const &
opengl_renderer::Info() const {
return m_debuginfo;