void FBO_AttachTextureImage(image_t *img, int index)
{
if (!glState.currentFBO)
{
ri.Printf(PRINT_WARNING, "FBO: attempted to attach a texture image with no FBO bound!\n");
return;
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, img->texnum, index);
glState.currentFBO->colorImage[index] = img;
}
/*
============
R_InitFBOs
============
*/
void R_InitFBOs( void )
{
int i;
int width, height;
ri.Printf( PRINT_DEVELOPER, "------- R_InitFBOs -------\n" );
if ( !glConfig2.framebufferObjectAvailable )
{
return;
}
tr.numFBOs = 0;
GL_CheckErrors();
// make sure the render thread is stopped
R_SyncRenderThread();
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth );
height = NearestPowerOfTwo( glConfig.vidHeight );
}
if ( glConfig2.framebufferBlitAvailable )
{
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth );
height = NearestPowerOfTwo( glConfig.vidHeight );
}
tr.occlusionRenderFBO = R_CreateFBO( "_occlusionRender", width, height );
R_BindFBO( tr.occlusionRenderFBO );
if ( glConfig.hardwareType == GLHW_ATI_DX10 )
{
R_CreateFBODepthBuffer( tr.occlusionRenderFBO, GL_DEPTH_COMPONENT16 );
}
else if ( glConfig.hardwareType == GLHW_NV_DX10 )
{
R_CreateFBODepthBuffer( tr.occlusionRenderFBO, GL_DEPTH_COMPONENT24 );
}
else if ( glConfig2.framebufferPackedDepthStencilAvailable )
{
R_CreateFBOPackedDepthStencilBuffer( tr.occlusionRenderFBO, GL_DEPTH24_STENCIL8_EXT );
}
else
{
R_CreateFBODepthBuffer( tr.occlusionRenderFBO, GL_DEPTH_COMPONENT24 );
}
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.occlusionRenderFBOImage->texnum, 0 );
R_CheckFBO( tr.occlusionRenderFBO );
}
if ( r_shadows->integer >= SHADOWING_ESM16 && glConfig2.textureFloatAvailable )
{
// shadowMap FBOs for shadow mapping offscreen rendering
for ( i = 0; i < MAX_SHADOWMAPS; i++ )
{
width = height = shadowMapResolutions[ i ];
tr.shadowMapFBO[ i ] = R_CreateFBO( va( "_shadowMap%d", i ), width, height );
R_BindFBO( tr.shadowMapFBO[ i ] );
R_AttachFBOTexture2D( GL_TEXTURE_2D,
tr.shadowMapFBOImage[ i ]->texnum,
0 );
R_CreateFBODepthBuffer( tr.shadowMapFBO[ i ], GL_DEPTH_COMPONENT24 );
R_CheckFBO( tr.shadowMapFBO[ i ] );
}
// sun requires different resolutions
for ( i = 0; i < MAX_SHADOWMAPS; i++ )
{
width = height = sunShadowMapResolutions[ i ];
tr.sunShadowMapFBO[ i ] = R_CreateFBO( va( "_sunShadowMap%d", i ), width, height );
R_BindFBO( tr.sunShadowMapFBO[ i ] );
R_AttachFBOTexture2D( GL_TEXTURE_2D,
tr.sunShadowMapFBOImage[ i ]->texnum,
0 );
R_CreateFBODepthBuffer( tr.sunShadowMapFBO[ i ], GL_DEPTH_COMPONENT24 );
if ( r_shadows->integer == SHADOWING_EVSM32 && r_evsmPostProcess->integer )
{
R_AttachFBOTextureDepth( tr.sunShadowMapFBOImage[ i ]->texnum );
/*
Since we don't have a color attachment, the framebuffer will be considered incomplete.
Consequently, we must inform the driver that we do not wish to render to the color buffer.
We do this with a call to set the draw-buffer and read-buffer to GL_NONE:
*/
glDrawBuffer( GL_NONE );
glReadBuffer( GL_NONE );
}
R_CheckFBO( tr.sunShadowMapFBO[ i ] );
}
}
{
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth );
height = NearestPowerOfTwo( glConfig.vidHeight );
}
// portalRender FBO for portals, mirrors, water, cameras et cetera
tr.portalRenderFBO = R_CreateFBO( "_portalRender", width, height );
R_BindFBO( tr.portalRenderFBO );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.portalRenderImage->texnum, 0 );
R_CheckFBO( tr.portalRenderFBO );
}
{
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth * 0.25f;
height = glConfig.vidHeight * 0.25f;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth * 0.25f );
height = NearestPowerOfTwo( glConfig.vidHeight * 0.25f );
}
tr.downScaleFBO_quarter = R_CreateFBO( "_downScale_quarter", width, height );
R_BindFBO( tr.downScaleFBO_quarter );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.downScaleFBOImage_quarter->texnum, 0 );
R_CheckFBO( tr.downScaleFBO_quarter );
tr.downScaleFBO_64x64 = R_CreateFBO( "_downScale_64x64", 64, 64 );
R_BindFBO( tr.downScaleFBO_64x64 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.downScaleFBOImage_64x64->texnum, 0 );
R_CheckFBO( tr.downScaleFBO_64x64 );
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth * 0.25f;
height = glConfig.vidHeight * 0.25f;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth * 0.25f );
height = NearestPowerOfTwo( glConfig.vidHeight * 0.25f );
}
tr.contrastRenderFBO = R_CreateFBO( "_contrastRender", width, height );
R_BindFBO( tr.contrastRenderFBO );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.contrastRenderFBOImage->texnum, 0 );
R_CheckFBO( tr.contrastRenderFBO );
for ( i = 0; i < 2; i++ )
{
tr.bloomRenderFBO[ i ] = R_CreateFBO( va( "_bloomRender%d", i ), width, height );
R_BindFBO( tr.bloomRenderFBO[ i ] );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.bloomRenderFBOImage[ i ]->texnum, 0 );
R_CheckFBO( tr.bloomRenderFBO[ i ] );
}
}
GL_CheckErrors();
R_BindNullFBO();
}
/*
============
FBO_Init
============
*/
void FBO_Init(void)
{
int i;
// int width, height, hdrFormat, multisample;
int hdrFormat, multisample;
ri.Printf(PRINT_ALL, "------- FBO_Init -------\n");
if(!glRefConfig.framebufferObject)
return;
tr.numFBOs = 0;
GL_CheckErrors();
R_IssuePendingRenderCommands();
/* if(glRefConfig.textureNonPowerOfTwo)
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NextPowerOfTwo(glConfig.vidWidth);
height = NextPowerOfTwo(glConfig.vidHeight);
} */
hdrFormat = GL_RGBA8;
if (r_hdr->integer && glRefConfig.framebufferObject && glRefConfig.textureFloat)
{
hdrFormat = GL_RGBA16F_ARB;
}
qglGetIntegerv(GL_MAX_SAMPLES_EXT, &multisample);
if (r_ext_framebuffer_multisample->integer < multisample)
{
multisample = r_ext_framebuffer_multisample->integer;
}
if (multisample < 2 || !glRefConfig.framebufferBlit)
multisample = 0;
if (multisample != r_ext_framebuffer_multisample->integer)
{
ri.Cvar_SetValue("r_ext_framebuffer_multisample", (float)multisample);
}
// only create a render FBO if we need to resolve MSAA or do HDR
// otherwise just render straight to the screen (tr.renderFbo = NULL)
if (multisample && glRefConfig.framebufferMultisample)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.renderFbo);
FBO_CreateBuffer(tr.renderFbo, hdrFormat, 0, multisample);
FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24_ARB, 0, multisample);
R_CheckFBO(tr.renderFbo);
tr.msaaResolveFbo = FBO_Create("_msaaResolve", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.msaaResolveFbo);
//FBO_CreateBuffer(tr.msaaResolveFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.renderImage, 0);
//FBO_CreateBuffer(tr.msaaResolveFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.msaaResolveFbo);
}
else if (r_hdr->integer)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.renderFbo);
//FBO_CreateBuffer(tr.renderFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.renderImage, 0);
//FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.renderFbo);
}
// clear render buffer
// this fixes the corrupt screen bug with r_hdr 1 on older hardware
if (tr.renderFbo)
{
FBO_Bind(tr.renderFbo);
qglClearColor( 1, 0, 0.5, 1 );
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
FBO_Bind(NULL);
}
if (r_drawSunRays->integer)
{
tr.sunRaysFbo = FBO_Create("_sunRays", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.sunRaysFbo);
FBO_AttachTextureImage(tr.sunRaysImage, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.sunRaysFbo);
}
// FIXME: Don't use separate color/depth buffers for a shadow buffer
if (MAX_DRAWN_PSHADOWS && tr.pshadowMaps[0])
{
for( i = 0; i < MAX_DRAWN_PSHADOWS; i++)
{
tr.pshadowFbos[i] = FBO_Create(va("_shadowmap%d", i), tr.pshadowMaps[i]->width, tr.pshadowMaps[i]->height);
FBO_Bind(tr.pshadowFbos[i]);
//FBO_CreateBuffer(tr.pshadowFbos[i], GL_RGBA8, 0, 0);
FBO_AttachTextureImage(tr.pshadowMaps[i], 0);
FBO_CreateBuffer(tr.pshadowFbos[i], GL_DEPTH_COMPONENT24_ARB, 0, 0);
//R_AttachFBOTextureDepth(tr.textureDepthImage->texnum);
R_CheckFBO(tr.pshadowFbos[i]);
}
}
if (tr.sunShadowDepthImage[0])
{
for ( i = 0; i < 4; i++)
{
tr.sunShadowFbo[i] = FBO_Create("_sunshadowmap", tr.sunShadowDepthImage[i]->width, tr.sunShadowDepthImage[i]->height);
FBO_Bind(tr.sunShadowFbo[i]);
//FBO_CreateBuffer(tr.sunShadowFbo[i], GL_RGBA8, 0, 0);
//FBO_AttachTextureImage(tr.sunShadowImage, 0);
qglDrawBuffer(GL_NONE);
qglReadBuffer(GL_NONE);
//FBO_CreateBuffer(tr.sunShadowFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.sunShadowDepthImage[i]->texnum);
R_CheckFBO(tr.sunShadowFbo[i]);
}
tr.screenShadowFbo = FBO_Create("_screenshadow", tr.screenShadowImage->width, tr.screenShadowImage->height);
FBO_Bind(tr.screenShadowFbo);
FBO_AttachTextureImage(tr.screenShadowImage, 0);
R_CheckFBO(tr.screenShadowFbo);
}
for (i = 0; i < 2; i++)
{
tr.textureScratchFbo[i] = FBO_Create(va("_texturescratch%d", i), tr.textureScratchImage[i]->width, tr.textureScratchImage[i]->height);
FBO_Bind(tr.textureScratchFbo[i]);
//FBO_CreateBuffer(tr.textureScratchFbo[i], GL_RGBA8, 0, 0);
FBO_AttachTextureImage(tr.textureScratchImage[i], 0);
R_CheckFBO(tr.textureScratchFbo[i]);
}
{
tr.calcLevelsFbo = FBO_Create("_calclevels", tr.calcLevelsImage->width, tr.calcLevelsImage->height);
FBO_Bind(tr.calcLevelsFbo);
//FBO_CreateBuffer(tr.calcLevelsFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.calcLevelsImage, 0);
R_CheckFBO(tr.calcLevelsFbo);
}
{
tr.targetLevelsFbo = FBO_Create("_targetlevels", tr.targetLevelsImage->width, tr.targetLevelsImage->height);
FBO_Bind(tr.targetLevelsFbo);
//FBO_CreateBuffer(tr.targetLevelsFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.targetLevelsImage, 0);
R_CheckFBO(tr.targetLevelsFbo);
}
for (i = 0; i < 2; i++)
{
tr.quarterFbo[i] = FBO_Create(va("_quarter%d", i), tr.quarterImage[i]->width, tr.quarterImage[i]->height);
FBO_Bind(tr.quarterFbo[i]);
//FBO_CreateBuffer(tr.quarterFbo[i], hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.quarterImage[i], 0);
R_CheckFBO(tr.quarterFbo[i]);
}
if (r_ssao->integer)
{
tr.hdrDepthFbo = FBO_Create("_hdrDepth", tr.hdrDepthImage->width, tr.hdrDepthImage->height);
FBO_Bind(tr.hdrDepthFbo);
FBO_AttachTextureImage(tr.hdrDepthImage, 0);
R_CheckFBO(tr.hdrDepthFbo);
tr.screenSsaoFbo = FBO_Create("_screenssao", tr.screenSsaoImage->width, tr.screenSsaoImage->height);
FBO_Bind(tr.screenSsaoFbo);
FBO_AttachTextureImage(tr.screenSsaoImage, 0);
R_CheckFBO(tr.screenSsaoFbo);
}
if (tr.renderCubeImage)
{
tr.renderCubeFbo = FBO_Create("_renderCubeFbo", tr.renderCubeImage->width, tr.renderCubeImage->height);
FBO_Bind(tr.renderCubeFbo);
//FBO_AttachTextureImage(tr.renderCubeImage, 0);
R_AttachFBOTexture2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB, tr.renderCubeImage->texnum, 0);
glState.currentFBO->colorImage[0] = tr.renderCubeImage;
FBO_CreateBuffer(tr.renderCubeFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_CheckFBO(tr.renderCubeFbo);
}
GL_CheckErrors();
FBO_Bind(NULL);
}
void R_InitFBOs(void)
{
int i;
int width, height;
Ren_Developer("------- R_InitFBOs -------\n");
if (!glConfig2.framebufferObjectAvailable)
{
return;
}
R_CheckDefaultBuffer();
tr.numFBOs = 0;
GL_CheckErrors();
// make sure the render thread is stopped
R_IssuePendingRenderCommands();
{
// forward shading
if (glConfig2.textureNPOTAvailable)
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo(glConfig.vidWidth);
height = NearestPowerOfTwo(glConfig.vidHeight);
}
// deferredRender FBO for the HDR or LDR context
tr.deferredRenderFBO = R_CreateFBO("_deferredRender", width, height);
R_BindFBO(tr.deferredRenderFBO);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.deferredRenderFBO, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.deferredRenderFBO, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.deferredRenderFBOImage->texnum, 0);
R_CreateFBODepthBuffer(tr.deferredRenderFBO, GL_DEPTH_COMPONENT24_ARB);
R_AttachFBOTextureDepth(tr.depthRenderImage->texnum);
R_CheckFBO(tr.deferredRenderFBO);
}
if (glConfig2.framebufferBlitAvailable)
{
if (glConfig2.textureNPOTAvailable)
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo(glConfig.vidWidth);
height = NearestPowerOfTwo(glConfig.vidHeight);
}
tr.occlusionRenderFBO = R_CreateFBO("_occlusionRender", width, height);
R_BindFBO(tr.occlusionRenderFBO);
#if 0
if (glConfig2.framebufferPackedDepthStencilAvailable)
{
//R_CreateFBOColorBuffer(tr.occlusionRenderFBO, GL_ALPHA32F_ARB, 0);
R_CreateFBOPackedDepthStencilBuffer(tr.occlusionRenderFBO, GL_DEPTH24_STENCIL8);
}
else
{
//R_CreateFBOColorBuffer(tr.occlusionRenderFBO, GL_RGBA, 0);
R_CreateFBODepthBuffer(tr.occlusionRenderFBO, GL_DEPTH_COMPONENT24);
}
#else
R_CreateFBODepthBuffer(tr.occlusionRenderFBO, GL_DEPTH_COMPONENT24);
#endif
R_CreateFBOColorBuffer(tr.occlusionRenderFBO, GL_RGBA, 0);
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.occlusionRenderFBOImage->texnum, 0);
R_CheckFBO(tr.occlusionRenderFBO);
}
if (r_shadows->integer >= SHADOWING_ESM16 && glConfig2.textureFloatAvailable)
{
// shadowMap FBOs for shadow mapping offscreen rendering
for (i = 0; i < MAX_SHADOWMAPS; i++)
{
width = height = shadowMapResolutions[i];
tr.shadowMapFBO[i] = R_CreateFBO(va("_shadowMap%d", i), width, height);
R_BindFBO(tr.shadowMapFBO[i]);
if (r_shadows->integer == SHADOWING_ESM32)
{
R_CreateFBOColorBuffer(tr.shadowMapFBO[i], GL_ALPHA32F_ARB, 0);
}
else if (r_shadows->integer == SHADOWING_VSM32)
{
R_CreateFBOColorBuffer(tr.shadowMapFBO[i], GL_LUMINANCE_ALPHA32F_ARB, 0);
}
else if (r_shadows->integer == SHADOWING_EVSM32)
{
if (r_evsmPostProcess->integer)
{
R_CreateFBOColorBuffer(tr.shadowMapFBO[i], GL_ALPHA32F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.shadowMapFBO[i], GL_RGBA32F_ARB, 0);
}
}
else
{
R_CreateFBOColorBuffer(tr.shadowMapFBO[i], GL_RGBA16F_ARB, 0);
}
R_CreateFBODepthBuffer(tr.shadowMapFBO[i], GL_DEPTH_COMPONENT24_ARB);
R_CheckFBO(tr.shadowMapFBO[i]);
}
// sun requires different resolutions
for (i = 0; i < MAX_SHADOWMAPS; i++)
{
width = height = sunShadowMapResolutions[i];
tr.sunShadowMapFBO[i] = R_CreateFBO(va("_sunShadowMap%d", i), width, height);
R_BindFBO(tr.sunShadowMapFBO[i]);
if (r_shadows->integer == SHADOWING_ESM32)
{
R_CreateFBOColorBuffer(tr.sunShadowMapFBO[i], GL_ALPHA32F_ARB, 0);
}
else if (r_shadows->integer == SHADOWING_VSM32)
{
R_CreateFBOColorBuffer(tr.sunShadowMapFBO[i], GL_LUMINANCE_ALPHA32F_ARB, 0);
}
else if (r_shadows->integer == SHADOWING_EVSM32)
{
if (!r_evsmPostProcess->integer)
{
R_CreateFBOColorBuffer(tr.sunShadowMapFBO[i], GL_RGBA32F_ARB, 0);
}
}
else
{
R_CreateFBOColorBuffer(tr.sunShadowMapFBO[i], GL_RGBA16F_ARB, 0);
}
R_CreateFBODepthBuffer(tr.sunShadowMapFBO[i], GL_DEPTH_COMPONENT24_ARB);
if (r_shadows->integer == SHADOWING_EVSM32 && r_evsmPostProcess->integer)
{
R_AttachFBOTextureDepth(tr.sunShadowMapFBOImage[i]->texnum);
/*
Since we don't have a color attachment the framebuffer will be considered incomplete.
Consequently, we must inform the driver that we do not wish to render to the color buffer.
We do this with a call to set the draw-buffer and read-buffer to GL_NONE:
*/
glDrawBuffer(GL_NONE);
glReadBuffer(GL_NONE);
}
R_CheckFBO(tr.sunShadowMapFBO[i]);
}
}
{
if (glConfig2.textureNPOTAvailable)
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo(glConfig.vidWidth);
height = NearestPowerOfTwo(glConfig.vidHeight);
}
// portalRender FBO for portals, mirrors, water, cameras et cetera
tr.portalRenderFBO = R_CreateFBO("_portalRender", width, height);
R_BindFBO(tr.portalRenderFBO);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.portalRenderFBO, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.portalRenderFBO, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.portalRenderImage->texnum, 0);
R_CheckFBO(tr.portalRenderFBO);
}
{
if (glConfig2.textureNPOTAvailable)
{
width = glConfig.vidWidth * 0.25f;
height = glConfig.vidHeight * 0.25f;
}
else
{
width = NearestPowerOfTwo(glConfig.vidWidth * 0.25f);
height = NearestPowerOfTwo(glConfig.vidHeight * 0.25f);
}
tr.downScaleFBO_quarter = R_CreateFBO("_downScale_quarter", width, height);
R_BindFBO(tr.downScaleFBO_quarter);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.downScaleFBO_quarter, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.downScaleFBO_quarter, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.downScaleFBOImage_quarter->texnum, 0);
R_CheckFBO(tr.downScaleFBO_quarter);
tr.downScaleFBO_64x64 = R_CreateFBO("_downScale_64x64", 64, 64);
R_BindFBO(tr.downScaleFBO_64x64);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.downScaleFBO_64x64, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.downScaleFBO_64x64, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.downScaleFBOImage_64x64->texnum, 0);
R_CheckFBO(tr.downScaleFBO_64x64);
#if 0
tr.downScaleFBO_16x16 = R_CreateFBO("_downScale_16x16", 16, 16);
R_BindFBO(tr.downScaleFBO_16x16);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.downScaleFBO_16x16, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.downScaleFBO_16x16, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.downScaleFBOImage_16x16->texnum, 0);
R_CheckFBO(tr.downScaleFBO_16x16);
tr.downScaleFBO_4x4 = R_CreateFBO("_downScale_4x4", 4, 4);
R_BindFBO(tr.downScaleFBO_4x4);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.downScaleFBO_4x4, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.downScaleFBO_4x4, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.downScaleFBOImage_4x4->texnum, 0);
R_CheckFBO(tr.downScaleFBO_4x4);
tr.downScaleFBO_1x1 = R_CreateFBO("_downScale_1x1", 1, 1);
R_BindFBO(tr.downScaleFBO_1x1);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.downScaleFBO_1x1, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.downScaleFBO_1x1, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.downScaleFBOImage_1x1->texnum, 0);
R_CheckFBO(tr.downScaleFBO_1x1);
#endif
if (glConfig2.textureNPOTAvailable)
{
width = glConfig.vidWidth * 0.25f;
height = glConfig.vidHeight * 0.25f;
}
else
{
width = NearestPowerOfTwo(glConfig.vidWidth * 0.25f);
height = NearestPowerOfTwo(glConfig.vidHeight * 0.25f);
}
tr.contrastRenderFBO = R_CreateFBO("_contrastRender", width, height);
R_BindFBO(tr.contrastRenderFBO);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.contrastRenderFBO, GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.contrastRenderFBO, GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.contrastRenderFBOImage->texnum, 0);
R_CheckFBO(tr.contrastRenderFBO);
for (i = 0; i < 2; i++)
{
tr.bloomRenderFBO[i] = R_CreateFBO(va("_bloomRender%d", i), width, height);
R_BindFBO(tr.bloomRenderFBO[i]);
if (r_hdrRendering->integer && glConfig2.textureFloatAvailable)
{
R_CreateFBOColorBuffer(tr.bloomRenderFBO[i], GL_RGBA16F_ARB, 0);
}
else
{
R_CreateFBOColorBuffer(tr.bloomRenderFBO[i], GL_RGBA, 0);
}
R_AttachFBOTexture2D(GL_TEXTURE_2D, tr.bloomRenderFBOImage[i]->texnum, 0);
R_CheckFBO(tr.bloomRenderFBO[i]);
}
}
GL_CheckErrors();
R_BindNullFBO();
}
void R_AttachColorBufferToFBO(FBO_t *fbo, int format, int target, image_t *texture, int index)
{
R_CreateFBOColorBuffer(fbo, format, index);
R_AttachFBOTexture2D(target, texture->texnum, index);
fbo->colorBuffers[index].texture = texture;
}
/*
============
R_InitFBOs
============
*/
void R_InitFBOs( void )
{
int i;
int width, height;
ri.Printf( PRINT_DEVELOPER, "------- R_InitFBOs -------\n" );
if ( !glConfig2.framebufferObjectAvailable )
{
return;
}
tr.numFBOs = 0;
#if !defined( USE_D3D10 )
GL_CheckErrors();
#endif
// make sure the render thread is stopped
R_SyncRenderThread();
#if defined( USE_D3D10 )
// TODO
#else
if ( DS_STANDARD_ENABLED() )
{
// geometricRender FBO as G-Buffer for deferred shading
ri.Printf( PRINT_ALL, "Deferred Shading enabled\n" );
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth );
height = NearestPowerOfTwo( glConfig.vidHeight );
}
tr.geometricRenderFBO = R_CreateFBO( "_geometricRender", width, height );
R_BindFBO( tr.geometricRenderFBO );
#if 0
if ( glConfig2.framebufferPackedDepthStencilAvailable )
{
R_AttachFBOTexturePackedDepthStencil( tr.depthRenderImage->texnum );
}
else if ( glConfig.hardwareType == GLHW_ATI || glConfig.hardwareType == GLHW_ATI_DX10 ) // || glConfig.hardwareType == GLHW_NV_DX10)
{
R_AttachFBOTextureDepth( tr.depthRenderImage->texnum );
}
else
#endif
{
R_AttachFBOTextureDepth( tr.depthRenderImage->texnum );
}
// enable all attachments as draw buffers
//glDrawBuffers(4, geometricRenderTargets);
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.deferredRenderFBOImage->texnum, 0 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.deferredDiffuseFBOImage->texnum, 1 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.deferredNormalFBOImage->texnum, 2 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.deferredSpecularFBOImage->texnum, 3 );
R_CheckFBO( tr.geometricRenderFBO );
}
else
{
// forward shading
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth );
height = NearestPowerOfTwo( glConfig.vidHeight );
}
// deferredRender FBO for the HDR or LDR context
tr.deferredRenderFBO = R_CreateFBO( "_deferredRender", width, height );
R_BindFBO( tr.deferredRenderFBO );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.deferredRenderFBOImage->texnum, 0 );
#if 0
if ( glConfig2.framebufferPackedDepthStencilAvailable )
{
R_AttachFBOTexturePackedDepthStencil( tr.depthRenderImage->texnum );
}
else if ( glConfig.hardwareType == GLHW_ATI || glConfig.hardwareType == GLHW_ATI_DX10 ) // || glConfig.hardwareType == GLHW_NV_DX10)
{
R_AttachFBOTextureDepth( tr.depthRenderImage->texnum );
}
else
#endif
{
R_AttachFBOTextureDepth( tr.depthRenderImage->texnum );
}
R_CheckFBO( tr.deferredRenderFBO );
}
if ( glConfig2.framebufferBlitAvailable )
{
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth );
height = NearestPowerOfTwo( glConfig.vidHeight );
}
tr.occlusionRenderFBO = R_CreateFBO( "_occlusionRender", width, height );
R_BindFBO( tr.occlusionRenderFBO );
if ( glConfig.hardwareType == GLHW_ATI_DX10 )
{
//R_CreateFBOColorBuffer(tr.occlusionRenderFBO, GL_ALPHA16F, 0);
R_CreateFBODepthBuffer( tr.occlusionRenderFBO, GL_DEPTH_COMPONENT16 );
}
else if ( glConfig.hardwareType == GLHW_NV_DX10 )
{
//R_CreateFBOColorBuffer(tr.occlusionRenderFBO, GL_ALPHA32F, 0);
R_CreateFBODepthBuffer( tr.occlusionRenderFBO, GL_DEPTH_COMPONENT24 );
}
else if ( glConfig2.framebufferPackedDepthStencilAvailable )
{
//R_CreateFBOColorBuffer(tr.occlusionRenderFBO, GL_ALPHA32F, 0);
R_CreateFBOPackedDepthStencilBuffer( tr.occlusionRenderFBO, GL_DEPTH24_STENCIL8_EXT );
}
else
{
//R_CreateFBOColorBuffer(tr.occlusionRenderFBO, GL_RGBA, 0);
R_CreateFBODepthBuffer( tr.occlusionRenderFBO, GL_DEPTH_COMPONENT24 );
}
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.occlusionRenderFBOImage->texnum, 0 );
R_CheckFBO( tr.occlusionRenderFBO );
}
if ( r_shadows->integer >= SHADOWING_ESM16 && glConfig2.textureFloatAvailable )
{
// shadowMap FBOs for shadow mapping offscreen rendering
for ( i = 0; i < MAX_SHADOWMAPS; i++ )
{
width = height = shadowMapResolutions[ i ];
tr.shadowMapFBO[ i ] = R_CreateFBO( va( "_shadowMap%d", i ), width, height );
R_BindFBO( tr.shadowMapFBO[ i ] );
if ( ( glConfig.driverType == GLDRV_OPENGL3 ) || ( glConfig.hardwareType == GLHW_NV_DX10 || glConfig.hardwareType == GLHW_ATI_DX10 ) )
{
if ( r_shadows->integer == SHADOWING_ESM32 )
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_ALPHA32F_ARB, 0 );
}
else if ( r_shadows->integer == SHADOWING_VSM32 )
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_LUMINANCE_ALPHA32F_ARB, 0 );
}
else if ( r_shadows->integer == SHADOWING_EVSM32 )
{
if ( r_evsmPostProcess->integer )
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_ALPHA32F_ARB, 0 );
}
else
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_RGBA32F, 0 );
}
}
else
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_RGBA16F, 0 );
}
}
else
{
if ( r_shadows->integer == SHADOWING_ESM16 )
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_ALPHA16F_ARB, 0 );
}
else if ( r_shadows->integer == SHADOWING_VSM16 )
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_LUMINANCE_ALPHA16F_ARB, 0 );
}
else
{
R_CreateFBOColorBuffer( tr.shadowMapFBO[ i ], GL_RGBA16F, 0 );
}
}
R_CreateFBODepthBuffer( tr.shadowMapFBO[ i ], GL_DEPTH_COMPONENT24 );
R_CheckFBO( tr.shadowMapFBO[ i ] );
}
// sun requires different resolutions
for ( i = 0; i < MAX_SHADOWMAPS; i++ )
{
width = height = sunShadowMapResolutions[ i ];
tr.sunShadowMapFBO[ i ] = R_CreateFBO( va( "_sunShadowMap%d", i ), width, height );
R_BindFBO( tr.sunShadowMapFBO[ i ] );
if ( ( glConfig.driverType == GLDRV_OPENGL3 ) || ( glConfig.hardwareType == GLHW_NV_DX10 || glConfig.hardwareType == GLHW_ATI_DX10 ) )
{
if ( r_shadows->integer == SHADOWING_ESM32 )
{
R_CreateFBOColorBuffer( tr.sunShadowMapFBO[ i ], GL_ALPHA32F_ARB, 0 );
}
else if ( r_shadows->integer == SHADOWING_VSM32 )
{
R_CreateFBOColorBuffer( tr.sunShadowMapFBO[ i ], GL_LUMINANCE_ALPHA32F_ARB, 0 );
}
else if ( r_shadows->integer == SHADOWING_EVSM32 )
{
if ( !r_evsmPostProcess->integer )
{
R_CreateFBOColorBuffer( tr.sunShadowMapFBO[ i ], GL_RGBA32F, 0 );
}
}
else
{
R_CreateFBOColorBuffer( tr.sunShadowMapFBO[ i ], GL_RGBA16F, 0 );
}
}
else
{
if ( r_shadows->integer == SHADOWING_ESM16 )
{
R_CreateFBOColorBuffer( tr.sunShadowMapFBO[ i ], GL_ALPHA16F_ARB, 0 );
}
else if ( r_shadows->integer == SHADOWING_VSM16 )
{
R_CreateFBOColorBuffer( tr.sunShadowMapFBO[ i ], GL_LUMINANCE_ALPHA16F_ARB, 0 );
}
else
{
R_CreateFBOColorBuffer( tr.sunShadowMapFBO[ i ], GL_RGBA16F, 0 );
}
}
R_CreateFBODepthBuffer( tr.sunShadowMapFBO[ i ], GL_DEPTH_COMPONENT24 );
if ( r_shadows->integer == SHADOWING_EVSM32 && r_evsmPostProcess->integer )
{
R_AttachFBOTextureDepth( tr.sunShadowMapFBOImage[ i ]->texnum );
/*
Since we don't have a color attachment, the framebuffer will be considered incomplete.
Consequently, we must inform the driver that we do not wish to render to the color buffer.
We do this with a call to set the draw-buffer and read-buffer to GL_NONE:
*/
glDrawBuffer( GL_NONE );
glReadBuffer( GL_NONE );
}
R_CheckFBO( tr.sunShadowMapFBO[ i ] );
}
}
{
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth );
height = NearestPowerOfTwo( glConfig.vidHeight );
}
// portalRender FBO for portals, mirrors, water, cameras et cetera
tr.portalRenderFBO = R_CreateFBO( "_portalRender", width, height );
R_BindFBO( tr.portalRenderFBO );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.portalRenderImage->texnum, 0 );
R_CheckFBO( tr.portalRenderFBO );
}
{
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth * 0.25f;
height = glConfig.vidHeight * 0.25f;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth * 0.25f );
height = NearestPowerOfTwo( glConfig.vidHeight * 0.25f );
}
tr.downScaleFBO_quarter = R_CreateFBO( "_downScale_quarter", width, height );
R_BindFBO( tr.downScaleFBO_quarter );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.downScaleFBOImage_quarter->texnum, 0 );
R_CheckFBO( tr.downScaleFBO_quarter );
tr.downScaleFBO_64x64 = R_CreateFBO( "_downScale_64x64", 64, 64 );
R_BindFBO( tr.downScaleFBO_64x64 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.downScaleFBOImage_64x64->texnum, 0 );
R_CheckFBO( tr.downScaleFBO_64x64 );
#if 0
tr.downScaleFBO_16x16 = R_CreateFBO( "_downScale_16x16", 16, 16 );
R_BindFBO( tr.downScaleFBO_16x16 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.downScaleFBOImage_16x16->texnum, 0 );
R_CheckFBO( tr.downScaleFBO_16x16 );
tr.downScaleFBO_4x4 = R_CreateFBO( "_downScale_4x4", 4, 4 );
R_BindFBO( tr.downScaleFBO_4x4 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.downScaleFBOImage_4x4->texnum, 0 );
R_CheckFBO( tr.downScaleFBO_4x4 );
tr.downScaleFBO_1x1 = R_CreateFBO( "_downScale_1x1", 1, 1 );
R_BindFBO( tr.downScaleFBO_1x1 );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.downScaleFBOImage_1x1->texnum, 0 );
R_CheckFBO( tr.downScaleFBO_1x1 );
#endif
if ( glConfig2.textureNPOTAvailable )
{
width = glConfig.vidWidth * 0.25f;
height = glConfig.vidHeight * 0.25f;
}
else
{
width = NearestPowerOfTwo( glConfig.vidWidth * 0.25f );
height = NearestPowerOfTwo( glConfig.vidHeight * 0.25f );
}
tr.contrastRenderFBO = R_CreateFBO( "_contrastRender", width, height );
R_BindFBO( tr.contrastRenderFBO );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.contrastRenderFBOImage->texnum, 0 );
R_CheckFBO( tr.contrastRenderFBO );
for ( i = 0; i < 2; i++ )
{
tr.bloomRenderFBO[ i ] = R_CreateFBO( va( "_bloomRender%d", i ), width, height );
R_BindFBO( tr.bloomRenderFBO[ i ] );
R_AttachFBOTexture2D( GL_TEXTURE_2D, tr.bloomRenderFBOImage[ i ]->texnum, 0 );
R_CheckFBO( tr.bloomRenderFBO[ i ] );
}
}
GL_CheckErrors();
#endif // defined(USE_D3D10)
R_BindNullFBO();
}