static inline void RB_BlurGlowTexture() { qglDisable (GL_CLIP_PLANE0); GL_Cull( CT_TWO_SIDED ); // Go into orthographic 2d mode. qglMatrixMode(GL_PROJECTION); qglPushMatrix(); qglLoadIdentity(); qglOrtho(0, backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight, 0, -1, 1); qglMatrixMode(GL_MODELVIEW); qglPushMatrix(); qglLoadIdentity(); GL_State(GLS_DEPTHTEST_DISABLE); ///////////////////////////////////////////////////////// // Setup vertex and pixel programs. ///////////////////////////////////////////////////////// // NOTE: The 0.25 is because we're blending 4 textures (so = 1.0) and we want a relatively normalized pixel // intensity distribution, but this won't happen anyways if intensity is higher than 1.0. float fBlurDistribution = r_DynamicGlowIntensity->value * 0.25f; float fBlurWeight[4] = { fBlurDistribution, fBlurDistribution, fBlurDistribution, 1.0f }; // Enable and set the Vertex Program. qglEnable( GL_VERTEX_PROGRAM_ARB ); qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, tr.glowVShader ); // Apply Pixel Shaders. if ( qglCombinerParameterfvNV ) { BeginPixelShader( GL_REGISTER_COMBINERS_NV, tr.glowPShader ); // Pass the blur weight to the regcom. qglCombinerParameterfvNV( GL_CONSTANT_COLOR0_NV, (float*)&fBlurWeight ); } else if ( qglProgramEnvParameter4fARB ) { BeginPixelShader( GL_FRAGMENT_PROGRAM_ARB, tr.glowPShader ); // Pass the blur weight to the Fragment Program. qglProgramEnvParameter4fARB( GL_FRAGMENT_PROGRAM_ARB, 0, fBlurWeight[0], fBlurWeight[1], fBlurWeight[2], fBlurWeight[3] ); } ///////////////////////////////////////////////////////// // Set the blur texture to the 4 texture stages. ///////////////////////////////////////////////////////// // How much to offset each texel by. float fTexelWidthOffset = 0.1f, fTexelHeightOffset = 0.1f; GLuint uiTex = tr.screenGlow; qglActiveTextureARB( GL_TEXTURE3_ARB ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); qglActiveTextureARB( GL_TEXTURE2_ARB ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); qglActiveTextureARB( GL_TEXTURE1_ARB ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); qglActiveTextureARB(GL_TEXTURE0_ARB ); qglDisable( GL_TEXTURE_2D ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); ///////////////////////////////////////////////////////// // Draw the blur passes (each pass blurs it more, increasing the blur radius ). ///////////////////////////////////////////////////////// //int iTexWidth = backEnd.viewParms.viewportWidth, iTexHeight = backEnd.viewParms.viewportHeight; int iTexWidth = glConfig.vidWidth, iTexHeight = glConfig.vidHeight; for ( int iNumBlurPasses = 0; iNumBlurPasses < r_DynamicGlowPasses->integer; iNumBlurPasses++ ) { // Load the Texel Offsets into the Vertex Program. qglProgramEnvParameter4fARB( GL_VERTEX_PROGRAM_ARB, 0, -fTexelWidthOffset, -fTexelWidthOffset, 0.0f, 0.0f ); qglProgramEnvParameter4fARB( GL_VERTEX_PROGRAM_ARB, 1, -fTexelWidthOffset, fTexelWidthOffset, 0.0f, 0.0f ); qglProgramEnvParameter4fARB( GL_VERTEX_PROGRAM_ARB, 2, fTexelWidthOffset, -fTexelWidthOffset, 0.0f, 0.0f ); qglProgramEnvParameter4fARB( GL_VERTEX_PROGRAM_ARB, 3, fTexelWidthOffset, fTexelWidthOffset, 0.0f, 0.0f ); // After first pass put the tex coords to the viewport size. if ( iNumBlurPasses == 1 ) { if ( !g_bTextureRectangleHack ) { iTexWidth = backEnd.viewParms.viewportWidth; iTexHeight = backEnd.viewParms.viewportHeight; } uiTex = tr.blurImage; qglActiveTextureARB( GL_TEXTURE3_ARB ); qglDisable( GL_TEXTURE_2D ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); qglActiveTextureARB( GL_TEXTURE2_ARB ); qglDisable( GL_TEXTURE_2D ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); qglActiveTextureARB( GL_TEXTURE1_ARB ); qglDisable( GL_TEXTURE_2D ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); qglActiveTextureARB(GL_TEXTURE0_ARB ); qglDisable( GL_TEXTURE_2D ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); // Copy the current image over. qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, uiTex ); qglCopyTexSubImage2D( GL_TEXTURE_RECTANGLE_EXT, 0, 0, 0, 0, 0, backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight ); } // Draw the fullscreen quad. qglBegin( GL_QUADS ); qglMultiTexCoord2fARB( GL_TEXTURE0_ARB, 0, iTexHeight ); qglVertex2f( 0, 0 ); qglMultiTexCoord2fARB( GL_TEXTURE0_ARB, 0, 0 ); qglVertex2f( 0, backEnd.viewParms.viewportHeight ); qglMultiTexCoord2fARB( GL_TEXTURE0_ARB, iTexWidth, 0 ); qglVertex2f( backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight ); qglMultiTexCoord2fARB( GL_TEXTURE0_ARB, iTexWidth, iTexHeight ); qglVertex2f( backEnd.viewParms.viewportWidth, 0 ); qglEnd(); qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.blurImage ); qglCopyTexSubImage2D( GL_TEXTURE_RECTANGLE_EXT, 0, 0, 0, 0, 0, backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight ); // Increase the texel offsets. // NOTE: This is possibly the most important input to the effect. Even by using an exponential function I've been able to // make it look better (at a much higher cost of course). This is cheap though and still looks pretty great. In the future // I might want to use an actual gaussian equation to correctly calculate the pixel coefficients and attenuates, texel // offsets, gaussian amplitude and radius... fTexelWidthOffset += r_DynamicGlowDelta->value; fTexelHeightOffset += r_DynamicGlowDelta->value; } // Disable multi-texturing. qglActiveTextureARB( GL_TEXTURE3_ARB ); qglDisable( GL_TEXTURE_RECTANGLE_EXT ); qglActiveTextureARB( GL_TEXTURE2_ARB ); qglDisable( GL_TEXTURE_RECTANGLE_EXT ); qglActiveTextureARB( GL_TEXTURE1_ARB ); qglDisable( GL_TEXTURE_RECTANGLE_EXT ); qglActiveTextureARB(GL_TEXTURE0_ARB ); qglDisable( GL_TEXTURE_RECTANGLE_EXT ); qglEnable( GL_TEXTURE_2D ); qglDisable( GL_VERTEX_PROGRAM_ARB ); EndPixelShader(); qglMatrixMode(GL_PROJECTION); qglPopMatrix(); qglMatrixMode(GL_MODELVIEW); qglPopMatrix(); qglDisable( GL_BLEND ); glState.currenttmu = 0; //this matches the last one we activated }
void RB_StageIteratorLightmappedMultitexture( void ) { shaderCommands_t *input; input = &tess; // // log this call // if ( r_logFile->integer ) { // don't just call LogComment, or we will get // a call to va() every frame! GLimp_LogComment( va("--- RB_StageIteratorLightmappedMultitexture( %s ) ---\n", tess.shader->name) ); } // // set face culling appropriately // GL_Cull( input->shader->cullType ); // // set color, pointers, and lock // GL_State( GLS_DEFAULT ); qglVertexPointer( 3, GL_FLOAT, 16, input->xyz ); qglNormalPointer (GL_FLOAT, 16, input->normal); #ifdef REPLACE_MODE qglDisableClientState( GL_COLOR_ARRAY ); qglColor3f( 1, 1, 1 ); qglShadeModel( GL_FLAT ); #else qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, tess.constantColor255 ); #endif // // select base stage // GL_SelectTexture( 0 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); R_BindAnimatedImage( &tess.xstages[0]->bundle[0] ); qglTexCoordPointer( 2, GL_FLOAT, 16, tess.texCoords[0][0] ); // // configure second stage // GL_SelectTexture( 1 ); qglEnable( GL_TEXTURE_2D ); if ( r_lightmap->integer ) { GL_TexEnv( GL_REPLACE ); } else { GL_TexEnv( GL_MODULATE ); } R_BindAnimatedImage( &tess.xstages[0]->bundle[1] ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 2, GL_FLOAT, 16, tess.texCoords[0][1] ); // // lock arrays // if ( qglLockArraysEXT ) { qglLockArraysEXT(0, input->numVertexes); GLimp_LogComment( "glLockArraysEXT\n" ); } R_DrawElements( input->numIndexes, input->indexes ); // // disable texturing on TEXTURE1, then select TEXTURE0 // qglDisable( GL_TEXTURE_2D ); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 0 ); #ifdef REPLACE_MODE GL_TexEnv( GL_MODULATE ); qglShadeModel( GL_SMOOTH ); #endif // // now do any dynamic lighting needed // if ( tess.dlightBits && tess.shader->sort <= SS_OPAQUE ) { ProjectDlightTexture(); } // // now do fog // if ( tess.fogNum && tess.shader->fogPass ) { RB_FogPass(); } // // unlock arrays // if ( qglUnlockArraysEXT ) { qglUnlockArraysEXT(); GLimp_LogComment( "glUnlockArraysEXT\n" ); } }
/* ** RB_IterateStagesGeneric */ static void RB_IterateStagesGeneric( shaderCommands_t *input ) { int stage; int loc; GLenum prog; char texname[MAX_QPATH]; shaderStage_t *pStage; /*if ( input->shader->GLSL ) { prog = getShaderProgram(input->shader->GLSLName); if(prog == -1) return; for ( stage = 0; stage < MAX_SHADER_STAGES; stage++ ) { pStage = tess.xstages[stage]; if(pStage) { ComputeColors( pStage ); ComputeTexCoords( pStage ); if ( !setArraysOnce ) { qglTexCoordPointer( 2, GL_FLOAT, 0, input->svars.texcoords[0] ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, input->svars.colors ); } if(pStage->bundle[0].image) { qglActiveTextureARB(GL_TEXTURE0_ARB + stage); qglBindTexture (GL_TEXTURE_2D, pStage->bundle[0].image[0]->texnum); Com_sprintf(texname,sizeof(texname),"texture_%i\n", stage); loc = qglGetUniformLocationARB(prog, texname); qglUniform1iARB(loc, stage); } } } pStage = tess.xstages[0]; GL_State( pStage->stateBits ); R_DrawElements( input->numIndexes, input->indexes ); return; }*/ for ( stage = 0; stage < MAX_SHADER_STAGES; stage++ ) { shaderStage_t *pStage = tess.xstages[stage]; if ( !pStage ) { break; } ComputeColors( pStage ); ComputeTexCoords( pStage ); if ( !setArraysOnce ) { qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, input->svars.colors ); } // // do multitexture // if ( pStage->bundle[1].image[0] != 0 ) { //Lightmaps and such DrawMultitextured( input, stage ); } else { if ( !setArraysOnce ) { qglTexCoordPointer( 2, GL_FLOAT, 0, input->svars.texcoords[0] ); } //LOL WTF, I don't need to do this! /*if(pStage->clamp) { qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP ); qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP ); }*/ // // set state // if ( pStage->bundle[0].vertexLightmap && ( (r_vertexLight->integer && !r_uiFullScreen->integer) || glConfig.hardwareType == GLHW_PERMEDIA2 ) && r_lightmap->integer ) { GL_Bind( tr.whiteImage ); } else R_BindAnimatedImage( &pStage->bundle[0] ); GL_State( pStage->stateBits ); // // draw // R_DrawElements( input->numIndexes, input->indexes ); } // allow skipping out to show just lightmaps during development if ( r_lightmap->integer && ( pStage->bundle[0].isLightmap || pStage->bundle[1].isLightmap || pStage->bundle[0].vertexLightmap ) ) { break; } } }
static void ForwardDlight( void ) { int l; //vec3_t origin; //float scale; float radius; int deformGen; vec5_t deformParams; vec4_t fogDistanceVector, fogDepthVector = {0, 0, 0, 0}; float eyeT = 0; shaderCommands_t *input = &tess; shaderStage_t *pStage = tess.xstages[0]; if ( !backEnd.refdef.num_dlights ) { return; } ComputeDeformValues(&deformGen, deformParams); ComputeFogValues(fogDistanceVector, fogDepthVector, &eyeT); for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) { dlight_t *dl; shaderProgram_t *sp; vec4_t vector; vec4_t texMatrix; vec4_t texOffTurb; if ( !( tess.dlightBits & ( 1 << l ) ) ) { continue; // this surface definately doesn't have any of this light } dl = &backEnd.refdef.dlights[l]; //VectorCopy( dl->transformed, origin ); radius = dl->radius; //scale = 1.0f / radius; //if (pStage->glslShaderGroup == tr.lightallShader) { int index = pStage->glslShaderIndex; index &= ~LIGHTDEF_LIGHTTYPE_MASK; index |= LIGHTDEF_USE_LIGHT_VECTOR; sp = &tr.lightallShader[index]; } backEnd.pc.c_lightallDraws++; GLSL_BindProgram(sp); GLSL_SetUniformMat4(sp, UNIFORM_MODELVIEWPROJECTIONMATRIX, glState.modelviewProjection); GLSL_SetUniformVec3(sp, UNIFORM_VIEWORIGIN, backEnd.viewParms.or.origin); GLSL_SetUniformVec3(sp, UNIFORM_LOCALVIEWORIGIN, backEnd.or.viewOrigin); GLSL_SetUniformFloat(sp, UNIFORM_VERTEXLERP, glState.vertexAttribsInterpolation); GLSL_SetUniformInt(sp, UNIFORM_DEFORMGEN, deformGen); if (deformGen != DGEN_NONE) { GLSL_SetUniformFloat5(sp, UNIFORM_DEFORMPARAMS, deformParams); GLSL_SetUniformFloat(sp, UNIFORM_TIME, tess.shaderTime); } if ( input->fogNum ) { vec4_t fogColorMask; GLSL_SetUniformVec4(sp, UNIFORM_FOGDISTANCE, fogDistanceVector); GLSL_SetUniformVec4(sp, UNIFORM_FOGDEPTH, fogDepthVector); GLSL_SetUniformFloat(sp, UNIFORM_FOGEYET, eyeT); ComputeFogColorMask(pStage, fogColorMask); GLSL_SetUniformVec4(sp, UNIFORM_FOGCOLORMASK, fogColorMask); } { vec4_t baseColor; vec4_t vertColor; ComputeShaderColors(pStage, baseColor, vertColor, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE); GLSL_SetUniformVec4(sp, UNIFORM_BASECOLOR, baseColor); GLSL_SetUniformVec4(sp, UNIFORM_VERTCOLOR, vertColor); } if (pStage->alphaGen == AGEN_PORTAL) { GLSL_SetUniformFloat(sp, UNIFORM_PORTALRANGE, tess.shader->portalRange); } GLSL_SetUniformInt(sp, UNIFORM_COLORGEN, pStage->rgbGen); GLSL_SetUniformInt(sp, UNIFORM_ALPHAGEN, pStage->alphaGen); GLSL_SetUniformVec3(sp, UNIFORM_DIRECTEDLIGHT, dl->color); VectorSet(vector, 0, 0, 0); GLSL_SetUniformVec3(sp, UNIFORM_AMBIENTLIGHT, vector); VectorCopy(dl->origin, vector); vector[3] = 1.0f; GLSL_SetUniformVec4(sp, UNIFORM_LIGHTORIGIN, vector); GLSL_SetUniformFloat(sp, UNIFORM_LIGHTRADIUS, radius); GLSL_SetUniformVec4(sp, UNIFORM_NORMALSCALE, pStage->normalScale); GLSL_SetUniformVec4(sp, UNIFORM_SPECULARSCALE, pStage->specularScale); // include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light // where they aren't rendered GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); GLSL_SetUniformMat4(sp, UNIFORM_MODELMATRIX, backEnd.or.transformMatrix); if (pStage->bundle[TB_DIFFUSEMAP].image[0]) R_BindAnimatedImageToTMU( &pStage->bundle[TB_DIFFUSEMAP], TB_DIFFUSEMAP); // bind textures that are sampled and used in the glsl shader, and // bind whiteImage to textures that are sampled but zeroed in the glsl shader // // alternatives: // - use the last bound texture // -> costs more to sample a higher res texture then throw out the result // - disable texture sampling in glsl shader with #ifdefs, as before // -> increases the number of shaders that must be compiled // if (pStage->bundle[TB_NORMALMAP].image[0]) { R_BindAnimatedImageToTMU( &pStage->bundle[TB_NORMALMAP], TB_NORMALMAP); } else if (r_normalMapping->integer) GL_BindToTMU( tr.whiteImage, TB_NORMALMAP ); if (pStage->bundle[TB_SPECULARMAP].image[0]) { R_BindAnimatedImageToTMU( &pStage->bundle[TB_SPECULARMAP], TB_SPECULARMAP); } else if (r_specularMapping->integer) GL_BindToTMU( tr.whiteImage, TB_SPECULARMAP ); { vec4_t enableTextures; VectorSet4(enableTextures, 0.0f, 0.0f, 0.0f, 0.0f); GLSL_SetUniformVec4(sp, UNIFORM_ENABLETEXTURES, enableTextures); } if (r_dlightMode->integer >= 2) GL_BindToTMU(tr.shadowCubemaps[l], TB_SHADOWMAP); ComputeTexMods( pStage, TB_DIFFUSEMAP, texMatrix, texOffTurb ); GLSL_SetUniformVec4(sp, UNIFORM_DIFFUSETEXMATRIX, texMatrix); GLSL_SetUniformVec4(sp, UNIFORM_DIFFUSETEXOFFTURB, texOffTurb); GLSL_SetUniformInt(sp, UNIFORM_TCGEN0, pStage->bundle[0].tcGen); // // draw // if (input->multiDrawPrimitives) { R_DrawMultiElementsVao(input->multiDrawPrimitives, input->multiDrawMinIndex, input->multiDrawMaxIndex, input->multiDrawNumIndexes, input->multiDrawFirstIndex); } else { R_DrawElementsVao(input->numIndexes, input->firstIndex, input->minIndex, input->maxIndex); } backEnd.pc.c_totalIndexes += tess.numIndexes; backEnd.pc.c_dlightIndexes += tess.numIndexes; backEnd.pc.c_dlightVertexes += tess.numVertexes; } }
/* =================== RB_FogPass Blends a fog texture on top of everything else =================== */ static void RB_FogPass( void ) { fog_t *fog; vec4_t color; vec4_t fogDistanceVector, fogDepthVector = {0, 0, 0, 0}; float eyeT = 0; shaderProgram_t *sp; int deformGen; vec5_t deformParams; ComputeDeformValues(&deformGen, deformParams); { int index = 0; if (deformGen != DGEN_NONE) index |= FOGDEF_USE_DEFORM_VERTEXES; if (glState.vertexAnimation) index |= FOGDEF_USE_VERTEX_ANIMATION; sp = &tr.fogShader[index]; } backEnd.pc.c_fogDraws++; GLSL_BindProgram(sp); fog = tr.world->fogs + tess.fogNum; GLSL_SetUniformMat4(sp, UNIFORM_MODELVIEWPROJECTIONMATRIX, glState.modelviewProjection); GLSL_SetUniformFloat(sp, UNIFORM_VERTEXLERP, glState.vertexAttribsInterpolation); GLSL_SetUniformInt(sp, UNIFORM_DEFORMGEN, deformGen); if (deformGen != DGEN_NONE) { GLSL_SetUniformFloat5(sp, UNIFORM_DEFORMPARAMS, deformParams); GLSL_SetUniformFloat(sp, UNIFORM_TIME, tess.shaderTime); } color[0] = ((unsigned char *)(&fog->colorInt))[0] / 255.0f; color[1] = ((unsigned char *)(&fog->colorInt))[1] / 255.0f; color[2] = ((unsigned char *)(&fog->colorInt))[2] / 255.0f; color[3] = ((unsigned char *)(&fog->colorInt))[3] / 255.0f; GLSL_SetUniformVec4(sp, UNIFORM_COLOR, color); ComputeFogValues(fogDistanceVector, fogDepthVector, &eyeT); GLSL_SetUniformVec4(sp, UNIFORM_FOGDISTANCE, fogDistanceVector); GLSL_SetUniformVec4(sp, UNIFORM_FOGDEPTH, fogDepthVector); GLSL_SetUniformFloat(sp, UNIFORM_FOGEYET, eyeT); if ( tess.shader->fogPass == FP_EQUAL ) { GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_DEPTHFUNC_EQUAL ); } else { GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA ); } if (tess.multiDrawPrimitives) { shaderCommands_t *input = &tess; R_DrawMultiElementsVao(input->multiDrawPrimitives, input->multiDrawMinIndex, input->multiDrawMaxIndex, input->multiDrawNumIndexes, input->multiDrawFirstIndex); } else { R_DrawElementsVao(tess.numIndexes, tess.firstIndex, tess.minIndex, tess.maxIndex); } }
/* ================= RB_ShadowTessEnd triangleFromEdge[ v1 ][ v2 ] set triangle from edge( v1, v2, tri ) if ( facing[ triangleFromEdge[ v1 ][ v2 ] ] && !facing[ triangleFromEdge[ v2 ][ v1 ] ) { } ================= */ void RB_ShadowTessEnd( void ) { int i; int numTris; vec3_t lightDir; GLboolean rgba[4]; // we can only do this if we have enough space in the vertex buffers if ( tess.numVertexes >= SHADER_MAX_VERTEXES / 2 ) { return; } if ( glConfig.stencilBits < 4 ) { return; } VectorCopy( backEnd.currentEntity->lightDir, lightDir ); // project vertexes away from light direction for ( i = 0 ; i < tess.numVertexes ; i++ ) { VectorMA( tess.xyz[i], -512, lightDir, tess.xyz[i+tess.numVertexes] ); } // decide which triangles face the light Com_Memset( numEdgeDefs, 0, 4 * tess.numVertexes ); numTris = tess.numIndexes / 3; for ( i = 0 ; i < numTris ; i++ ) { int i1, i2, i3; vec3_t d1, d2, normal; float *v1, *v2, *v3; float d; i1 = tess.indexes[ i*3 + 0 ]; i2 = tess.indexes[ i*3 + 1 ]; i3 = tess.indexes[ i*3 + 2 ]; v1 = tess.xyz[ i1 ]; v2 = tess.xyz[ i2 ]; v3 = tess.xyz[ i3 ]; VectorSubtract( v2, v1, d1 ); VectorSubtract( v3, v1, d2 ); CrossProduct( d1, d2, normal ); d = DotProduct( normal, lightDir ); if ( d > 0 ) { facing[ i ] = 1; } else { facing[ i ] = 0; } // create the edges R_AddEdgeDef( i1, i2, facing[ i ] ); R_AddEdgeDef( i2, i3, facing[ i ] ); R_AddEdgeDef( i3, i1, facing[ i ] ); } // draw the silhouette edges GL_Bind( tr.whiteImage ); qglEnable( GL_CULL_FACE ); GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO ); qglColor3f( 0.2f, 0.2f, 0.2f ); // don't write to the color buffer qglGetBooleanv(GL_COLOR_WRITEMASK, rgba); qglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE ); qglEnable( GL_STENCIL_TEST ); qglStencilFunc( GL_ALWAYS, 1, 255 ); // mirrors have the culling order reversed if ( backEnd.viewParms.isMirror ) { qglCullFace( GL_FRONT ); qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR ); R_RenderShadowEdges(); qglCullFace( GL_BACK ); qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR ); R_RenderShadowEdges(); } else { qglCullFace( GL_BACK ); qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR ); R_RenderShadowEdges(); qglCullFace( GL_FRONT ); qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR ); R_RenderShadowEdges(); } // reenable writing to the color buffer qglColorMask(rgba[0], rgba[1], rgba[2], rgba[3]); }
static void RB_IterateStagesGeneric( shaderCommands_t *input ) { int stage; vec4_t fogDistanceVector, fogDepthVector = {0, 0, 0, 0}; float eyeT = 0; int deformGen; vec5_t deformParams; ComputeDeformValues(&deformGen, deformParams); ComputeFogValues(fogDistanceVector, fogDepthVector, &eyeT); for ( stage = 0; stage < MAX_SHADER_STAGES; stage++ ) { shaderStage_t *pStage = input->xstages[stage]; shaderProgram_t *sp; vec4_t texMatrix; vec4_t texOffTurb; if ( !pStage ) { break; } if (backEnd.depthFill) { if (pStage->glslShaderGroup == tr.lightallShader) { int index = 0; if (backEnd.currentEntity && backEnd.currentEntity != &tr.worldEntity) { index |= LIGHTDEF_ENTITY; } if (pStage->stateBits & GLS_ATEST_BITS) { index |= LIGHTDEF_USE_TCGEN_AND_TCMOD; } sp = &pStage->glslShaderGroup[index]; } else { int shaderAttribs = 0; if (tess.shader->numDeforms && !ShaderRequiresCPUDeforms(tess.shader)) { shaderAttribs |= GENERICDEF_USE_DEFORM_VERTEXES; } if (glState.vertexAnimation) { shaderAttribs |= GENERICDEF_USE_VERTEX_ANIMATION; } if (pStage->stateBits & GLS_ATEST_BITS) { shaderAttribs |= GENERICDEF_USE_TCGEN_AND_TCMOD; } sp = &tr.genericShader[shaderAttribs]; } } else if (pStage->glslShaderGroup == tr.lightallShader) { int index = pStage->glslShaderIndex; if (backEnd.currentEntity && backEnd.currentEntity != &tr.worldEntity) { index |= LIGHTDEF_ENTITY; } if (r_sunlightMode->integer && (backEnd.viewParms.flags & VPF_USESUNLIGHT) && (index & LIGHTDEF_LIGHTTYPE_MASK)) { index |= LIGHTDEF_USE_SHADOWMAP; } if (r_lightmap->integer && index & LIGHTDEF_USE_LIGHTMAP) { index = LIGHTDEF_USE_LIGHTMAP; } sp = &pStage->glslShaderGroup[index]; backEnd.pc.c_lightallDraws++; } else { sp = GLSL_GetGenericShaderProgram(stage); backEnd.pc.c_genericDraws++; } GLSL_BindProgram(sp); GLSL_SetUniformMat4(sp, UNIFORM_MODELVIEWPROJECTIONMATRIX, glState.modelviewProjection); GLSL_SetUniformVec3(sp, UNIFORM_VIEWORIGIN, backEnd.viewParms.or.origin); GLSL_SetUniformVec3(sp, UNIFORM_LOCALVIEWORIGIN, backEnd.or.viewOrigin); GLSL_SetUniformFloat(sp, UNIFORM_VERTEXLERP, glState.vertexAttribsInterpolation); GLSL_SetUniformInt(sp, UNIFORM_DEFORMGEN, deformGen); if (deformGen != DGEN_NONE) { GLSL_SetUniformFloat5(sp, UNIFORM_DEFORMPARAMS, deformParams); GLSL_SetUniformFloat(sp, UNIFORM_TIME, tess.shaderTime); } if ( input->fogNum ) { GLSL_SetUniformVec4(sp, UNIFORM_FOGDISTANCE, fogDistanceVector); GLSL_SetUniformVec4(sp, UNIFORM_FOGDEPTH, fogDepthVector); GLSL_SetUniformFloat(sp, UNIFORM_FOGEYET, eyeT); } GL_State( pStage->stateBits ); { vec4_t baseColor; vec4_t vertColor; ComputeShaderColors(pStage, baseColor, vertColor, pStage->stateBits); if ((backEnd.refdef.colorScale != 1.0f) && !(backEnd.refdef.rdflags & RDF_NOWORLDMODEL)) { // use VectorScale to only scale first three values, not alpha VectorScale(baseColor, backEnd.refdef.colorScale, baseColor); VectorScale(vertColor, backEnd.refdef.colorScale, vertColor); } GLSL_SetUniformVec4(sp, UNIFORM_BASECOLOR, baseColor); GLSL_SetUniformVec4(sp, UNIFORM_VERTCOLOR, vertColor); } if (pStage->rgbGen == CGEN_LIGHTING_DIFFUSE) { vec4_t vec; VectorScale(backEnd.currentEntity->ambientLight, 1.0f / 255.0f, vec); GLSL_SetUniformVec3(sp, UNIFORM_AMBIENTLIGHT, vec); VectorScale(backEnd.currentEntity->directedLight, 1.0f / 255.0f, vec); GLSL_SetUniformVec3(sp, UNIFORM_DIRECTEDLIGHT, vec); VectorCopy(backEnd.currentEntity->lightDir, vec); vec[3] = 0.0f; GLSL_SetUniformVec4(sp, UNIFORM_LIGHTORIGIN, vec); GLSL_SetUniformVec3(sp, UNIFORM_MODELLIGHTDIR, backEnd.currentEntity->modelLightDir); GLSL_SetUniformFloat(sp, UNIFORM_LIGHTRADIUS, 0.0f); } if (pStage->alphaGen == AGEN_PORTAL) { GLSL_SetUniformFloat(sp, UNIFORM_PORTALRANGE, tess.shader->portalRange); } GLSL_SetUniformInt(sp, UNIFORM_COLORGEN, pStage->rgbGen); GLSL_SetUniformInt(sp, UNIFORM_ALPHAGEN, pStage->alphaGen); if ( input->fogNum ) { vec4_t fogColorMask; ComputeFogColorMask(pStage, fogColorMask); GLSL_SetUniformVec4(sp, UNIFORM_FOGCOLORMASK, fogColorMask); } ComputeTexMods( pStage, TB_DIFFUSEMAP, texMatrix, texOffTurb ); GLSL_SetUniformVec4(sp, UNIFORM_DIFFUSETEXMATRIX, texMatrix); GLSL_SetUniformVec4(sp, UNIFORM_DIFFUSETEXOFFTURB, texOffTurb); GLSL_SetUniformInt(sp, UNIFORM_TCGEN0, pStage->bundle[0].tcGen); if (pStage->bundle[0].tcGen == TCGEN_VECTOR) { vec3_t vec; VectorCopy(pStage->bundle[0].tcGenVectors[0], vec); GLSL_SetUniformVec3(sp, UNIFORM_TCGEN0VECTOR0, vec); VectorCopy(pStage->bundle[0].tcGenVectors[1], vec); GLSL_SetUniformVec3(sp, UNIFORM_TCGEN0VECTOR1, vec); } GLSL_SetUniformMat4(sp, UNIFORM_MODELMATRIX, backEnd.or.transformMatrix); GLSL_SetUniformVec4(sp, UNIFORM_NORMALSCALE, pStage->normalScale); GLSL_SetUniformVec4(sp, UNIFORM_SPECULARSCALE, pStage->specularScale); //GLSL_SetUniformFloat(sp, UNIFORM_MAPLIGHTSCALE, backEnd.refdef.mapLightScale); // // do multitexture // if ( backEnd.depthFill ) { if (!(pStage->stateBits & GLS_ATEST_BITS)) GL_BindToTMU( tr.whiteImage, TB_COLORMAP ); else if ( pStage->bundle[TB_COLORMAP].image[0] != 0 ) R_BindAnimatedImageToTMU( &pStage->bundle[TB_COLORMAP], TB_COLORMAP ); } else if ( pStage->glslShaderGroup == tr.lightallShader ) { int i; vec4_t enableTextures; if (r_sunlightMode->integer && (backEnd.viewParms.flags & VPF_USESUNLIGHT) && (pStage->glslShaderIndex & LIGHTDEF_LIGHTTYPE_MASK)) { GL_BindToTMU(tr.screenShadowImage, TB_SHADOWMAP); GLSL_SetUniformVec3(sp, UNIFORM_PRIMARYLIGHTAMBIENT, backEnd.refdef.sunAmbCol); if (r_pbr->integer) { vec3_t color; color[0] = backEnd.refdef.sunCol[0] * backEnd.refdef.sunCol[0]; color[1] = backEnd.refdef.sunCol[1] * backEnd.refdef.sunCol[1]; color[2] = backEnd.refdef.sunCol[2] * backEnd.refdef.sunCol[2]; GLSL_SetUniformVec3(sp, UNIFORM_PRIMARYLIGHTCOLOR, color); } else { GLSL_SetUniformVec3(sp, UNIFORM_PRIMARYLIGHTCOLOR, backEnd.refdef.sunCol); } GLSL_SetUniformVec4(sp, UNIFORM_PRIMARYLIGHTORIGIN, backEnd.refdef.sunDir); } VectorSet4(enableTextures, 0, 0, 0, 0); if ((r_lightmap->integer == 1 || r_lightmap->integer == 2) && pStage->bundle[TB_LIGHTMAP].image[0]) { for (i = 0; i < NUM_TEXTURE_BUNDLES; i++) { if (i == TB_LIGHTMAP) R_BindAnimatedImageToTMU( &pStage->bundle[TB_LIGHTMAP], i); else GL_BindToTMU( tr.whiteImage, i ); } } else if (r_lightmap->integer == 3 && pStage->bundle[TB_DELUXEMAP].image[0]) { for (i = 0; i < NUM_TEXTURE_BUNDLES; i++) { if (i == TB_LIGHTMAP) R_BindAnimatedImageToTMU( &pStage->bundle[TB_DELUXEMAP], i); else GL_BindToTMU( tr.whiteImage, i ); } } else { qboolean light = (pStage->glslShaderIndex & LIGHTDEF_LIGHTTYPE_MASK) != 0; qboolean fastLight = !(r_normalMapping->integer || r_specularMapping->integer); if (pStage->bundle[TB_DIFFUSEMAP].image[0]) R_BindAnimatedImageToTMU( &pStage->bundle[TB_DIFFUSEMAP], TB_DIFFUSEMAP); if (pStage->bundle[TB_LIGHTMAP].image[0]) R_BindAnimatedImageToTMU( &pStage->bundle[TB_LIGHTMAP], TB_LIGHTMAP); // bind textures that are sampled and used in the glsl shader, and // bind whiteImage to textures that are sampled but zeroed in the glsl shader // // alternatives: // - use the last bound texture // -> costs more to sample a higher res texture then throw out the result // - disable texture sampling in glsl shader with #ifdefs, as before // -> increases the number of shaders that must be compiled // if (light && !fastLight) { if (pStage->bundle[TB_NORMALMAP].image[0]) { R_BindAnimatedImageToTMU( &pStage->bundle[TB_NORMALMAP], TB_NORMALMAP); enableTextures[0] = 1.0f; } else if (r_normalMapping->integer) GL_BindToTMU( tr.whiteImage, TB_NORMALMAP ); if (pStage->bundle[TB_DELUXEMAP].image[0]) { R_BindAnimatedImageToTMU( &pStage->bundle[TB_DELUXEMAP], TB_DELUXEMAP); enableTextures[1] = 1.0f; } else if (r_deluxeMapping->integer) GL_BindToTMU( tr.whiteImage, TB_DELUXEMAP ); if (pStage->bundle[TB_SPECULARMAP].image[0]) { R_BindAnimatedImageToTMU( &pStage->bundle[TB_SPECULARMAP], TB_SPECULARMAP); enableTextures[2] = 1.0f; } else if (r_specularMapping->integer) GL_BindToTMU( tr.whiteImage, TB_SPECULARMAP ); } enableTextures[3] = (r_cubeMapping->integer && !(tr.viewParms.flags & VPF_NOCUBEMAPS) && input->cubemapIndex) ? 1.0f : 0.0f; } GLSL_SetUniformVec4(sp, UNIFORM_ENABLETEXTURES, enableTextures); } else if ( pStage->bundle[1].image[0] != 0 ) { R_BindAnimatedImageToTMU( &pStage->bundle[0], 0 ); R_BindAnimatedImageToTMU( &pStage->bundle[1], 1 ); } else { // // set state // R_BindAnimatedImageToTMU( &pStage->bundle[0], 0 ); } // // testing cube map // if (!(tr.viewParms.flags & VPF_NOCUBEMAPS) && input->cubemapIndex && r_cubeMapping->integer) { vec4_t vec; cubemap_t *cubemap = &tr.cubemaps[input->cubemapIndex - 1]; GL_BindToTMU( cubemap->image, TB_CUBEMAP); VectorSubtract(cubemap->origin, backEnd.viewParms.or.origin, vec); vec[3] = 1.0f; VectorScale4(vec, 1.0f / cubemap->parallaxRadius, vec); GLSL_SetUniformVec4(sp, UNIFORM_CUBEMAPINFO, vec); } // // draw // if (input->multiDrawPrimitives) { R_DrawMultiElementsVao(input->multiDrawPrimitives, input->multiDrawMinIndex, input->multiDrawMaxIndex, input->multiDrawNumIndexes, input->multiDrawFirstIndex); } else { R_DrawElementsVao(input->numIndexes, input->firstIndex, input->minIndex, input->maxIndex); } // allow skipping out to show just lightmaps during development if ( r_lightmap->integer && ( pStage->bundle[0].isLightmap || pStage->bundle[1].isLightmap ) ) { break; } if (backEnd.depthFill) break; } }
/* ================= RB_BeginDrawingView Any mirrored or portaled views have already been drawn, so prepare to actually render the visible surfaces for this view ================= */ void RB_BeginDrawingView( void ) { int clearBits = 0; // sync with gl if needed if ( r_finish->integer == 1 && !glState.finishCalled ) { glFinish(); glState.finishCalled = qtrue; } if ( r_finish->integer == 0 ) { glState.finishCalled = qtrue; } // we will need to change the projection matrix before drawing // 2D images again backEnd.projection2D = qfalse; // // set the modelview matrix for the viewer // SetViewportAndScissor(); // ensures that depth writes are enabled for the depth clear GL_State( GLS_DEFAULT ); ////////// (SA) modified to ensure one glclear() per frame at most // clear relevant buffers clearBits = 0; clearBits |= GL_STENCIL_BUFFER_BIT; // if(r_uiFullScreen->integer) { // clearBits = GL_DEPTH_BUFFER_BIT; // (SA) always just clear depth for menus // } else // ydnar: global q3 fog volume if ( tr.world && tr.world->globalFog >= 0 ) { clearBits |= GL_DEPTH_BUFFER_BIT; clearBits |= GL_COLOR_BUFFER_BIT; // glClearColor( tr.world->fogs[ tr.world->globalFog ].shader->fogParms.color[ 0 ] * tr.identityLight, tr.world->fogs[ tr.world->globalFog ].shader->fogParms.color[ 1 ] * tr.identityLight, tr.world->fogs[ tr.world->globalFog ].shader->fogParms.color[ 2 ] * tr.identityLight, 1.0 ); } else if ( skyboxportal ) { if ( backEnd.refdef.rdflags & RDF_SKYBOXPORTAL ) { // portal scene, clear whatever is necessary clearBits |= GL_DEPTH_BUFFER_BIT; if ( r_fastsky->integer || backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) { // fastsky: clear color // try clearing first with the portal sky fog color, then the world fog color, then finally a default clearBits |= GL_COLOR_BUFFER_BIT; if ( glfogsettings[ FOG_PORTALVIEW ].registered ) { glClearColor( glfogsettings[ FOG_PORTALVIEW ].color[ 0 ], glfogsettings[ FOG_PORTALVIEW ].color[ 1 ], glfogsettings[ FOG_PORTALVIEW ].color[ 2 ], glfogsettings[ FOG_PORTALVIEW ].color[ 3 ] ); } else if ( glfogNum > FOG_NONE && glfogsettings[ FOG_CURRENT ].registered ) { glClearColor( glfogsettings[ FOG_CURRENT ].color[ 0 ], glfogsettings[ FOG_CURRENT ].color[ 1 ], glfogsettings[ FOG_CURRENT ].color[ 2 ], glfogsettings[ FOG_CURRENT ].color[ 3 ] ); } else { // glClearColor ( 1.0, 0.0, 0.0, 1.0 ); // red clear for testing portal sky clear glClearColor( 0.5, 0.5, 0.5, 1.0 ); } } else { // rendered sky (either clear color or draw quake sky) if ( glfogsettings[ FOG_PORTALVIEW ].registered ) { glClearColor( glfogsettings[ FOG_PORTALVIEW ].color[ 0 ], glfogsettings[ FOG_PORTALVIEW ].color[ 1 ], glfogsettings[ FOG_PORTALVIEW ].color[ 2 ], glfogsettings[ FOG_PORTALVIEW ].color[ 3 ] ); if ( glfogsettings[ FOG_PORTALVIEW ].clearscreen ) { // portal fog requests a screen clear (distance fog rather than quake sky) clearBits |= GL_COLOR_BUFFER_BIT; } } } } else { // world scene with portal sky, don't clear any buffers, just set the fog color if there is one clearBits |= GL_DEPTH_BUFFER_BIT; // this will go when I get the portal sky rendering way out in the zbuffer (or not writing to zbuffer at all) if ( glfogNum > FOG_NONE && glfogsettings[ FOG_CURRENT ].registered ) { if ( backEnd.refdef.rdflags & RDF_UNDERWATER ) { if ( glfogsettings[ FOG_CURRENT ].mode == GL_LINEAR ) { clearBits |= GL_COLOR_BUFFER_BIT; } } else if ( !( r_portalsky->integer ) ) { // portal skies have been manually turned off, clear bg color clearBits |= GL_COLOR_BUFFER_BIT; } glClearColor( glfogsettings[ FOG_CURRENT ].color[ 0 ], glfogsettings[ FOG_CURRENT ].color[ 1 ], glfogsettings[ FOG_CURRENT ].color[ 2 ], glfogsettings[ FOG_CURRENT ].color[ 3 ] ); } else if ( !( r_portalsky->integer ) ) { // ydnar: portal skies have been manually turned off, clear bg color clearBits |= GL_COLOR_BUFFER_BIT; glClearColor( 0.5, 0.5, 0.5, 1.0 ); } } } else { // world scene with no portal sky clearBits |= GL_DEPTH_BUFFER_BIT; // NERVE - SMF - we don't want to clear the buffer when no world model is specified if ( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) { clearBits &= ~GL_COLOR_BUFFER_BIT; } // -NERVE - SMF else if ( r_fastsky->integer || backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) { clearBits |= GL_COLOR_BUFFER_BIT; if ( glfogsettings[ FOG_CURRENT ].registered ) { // try to clear fastsky with current fog color glClearColor( glfogsettings[ FOG_CURRENT ].color[ 0 ], glfogsettings[ FOG_CURRENT ].color[ 1 ], glfogsettings[ FOG_CURRENT ].color[ 2 ], glfogsettings[ FOG_CURRENT ].color[ 3 ] ); } else { // glClearColor ( 0.0, 0.0, 1.0, 1.0 ); // blue clear for testing world sky clear glClearColor( 0.05, 0.05, 0.05, 1.0 ); // JPW NERVE changed per id req was 0.5s } } else { // world scene, no portal sky, not fastsky, clear color if fog says to, otherwise, just set the clearcolor if ( glfogsettings[ FOG_CURRENT ].registered ) { // try to clear fastsky with current fog color glClearColor( glfogsettings[ FOG_CURRENT ].color[ 0 ], glfogsettings[ FOG_CURRENT ].color[ 1 ], glfogsettings[ FOG_CURRENT ].color[ 2 ], glfogsettings[ FOG_CURRENT ].color[ 3 ] ); if ( glfogsettings[ FOG_CURRENT ].clearscreen ) { // world fog requests a screen clear (distance fog rather than quake sky) clearBits |= GL_COLOR_BUFFER_BIT; } } } } // ydnar: don't clear the color buffer when no world model is specified if ( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) { clearBits &= ~GL_COLOR_BUFFER_BIT; } if ( clearBits ) { glClear( clearBits ); } //----(SA) done if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) ) { RB_Hyperspace(); return; } else { backEnd.isHyperspace = qfalse; } glState.faceCulling = -1; // force face culling to set next time // we will only draw a sun if there was sky rendered in this view backEnd.skyRenderedThisView = qfalse; }
/* ================== RB_RenderInteraction backEnd.vLight backEnd.lightScale backEnd.depthFunc must be equal for alpha tested surfaces to work right, it is set to lessThan for blended transparent surfaces This expects a bumpmap stage before a diffuse stage before a specular stage The material code is responsible for guaranteeing that, but conditional stages can still make it invalid. you can't blend two bumpmaps, but you can change bump maps between blended diffuse / specular maps to get the same effect ================== */ static void RB_RenderInteraction( const drawSurf_t *surf ) { const idMaterial *surfaceShader = surf->material; const float *surfaceRegs = surf->shaderRegisters; const viewLight_t *vLight = backEnd.vLight; const idMaterial *lightShader = vLight->lightShader; const float *lightRegs = vLight->shaderRegisters; static idPlane lightProject[4]; // reused across function calls const srfTriangles_t *tri = surf->geo; const shaderStage_t *lastBumpStage = NULL; RB_LogComment( "---------- RB_RenderInteraction %s on %s ----------\n", lightShader->GetName(), surfaceShader->GetName() ); // change the matrix and light projection vectors if needed if ( surf->space != backEnd.currentSpace ) { backEnd.currentSpace = surf->space; qglLoadMatrixf( surf->space->modelViewMatrix ); for ( int i = 0 ; i < 4 ; i++ ) { R_GlobalPlaneToLocal( surf->space->modelMatrix, backEnd.vLight->lightProject[i], lightProject[i] ); } } // change the scissor if needed if ( r_useScissor.GetBool() && !backEnd.currentScissor.Equals( surf->scissorRect ) ) { backEnd.currentScissor = surf->scissorRect; qglScissor( backEnd.viewDef->viewport.x1 + backEnd.currentScissor.x1, backEnd.viewDef->viewport.y1 + backEnd.currentScissor.y1, backEnd.currentScissor.x2 + 1 - backEnd.currentScissor.x1, backEnd.currentScissor.y2 + 1 - backEnd.currentScissor.y1 ); } // hack depth range if needed if ( surf->space->weaponDepthHack ) { RB_EnterWeaponDepthHack(); } if ( surf->space->modelDepthHack != 0.0f ) { RB_EnterModelDepthHack( surf->space->modelDepthHack ); } // set the vertex arrays, which may not all be enabled on a given pass idDrawVert *ac = (idDrawVert *)vertexCache.Position(tri->ambientCache); qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() ); GL_SelectTexture( 0 ); qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), ac->st.ToFloatPtr() ); qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), ac->color ); // go through the individual stages for ( int i = 0 ; i < surfaceShader->GetNumStages() ; i++ ) { const shaderStage_t *surfaceStage = surfaceShader->GetStage( i ); // ignore ambient stages while drawing interactions if ( surfaceStage->lighting == SL_AMBIENT ) { continue; } // ignore stages that fail the condition if ( !surfaceRegs[ surfaceStage->conditionRegister ] ) { continue; } //----------------------------------------------------- // // bump / falloff // //----------------------------------------------------- if ( surfaceStage->lighting == SL_BUMP ) { // render light falloff * bumpmap lighting if ( surfaceStage->vertexColor != SVC_IGNORE ) { common->Printf( "shader %s: vertexColor on a bump stage\n", surfaceShader->GetName() ); } // check for RGBA modulations in the stage, which are also illegal? // save the bump map stage for the specular calculation and diffuse // error checking lastBumpStage = surfaceStage; // // ambient lights combine non-directional bump and falloff // and write to the alpha channel // if ( lightShader->IsAmbientLight() ) { GL_State( GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc ); // texture 0 will be the per-surface bump map GL_SelectTexture( 0 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf ); // development aid if ( r_skipBump.GetBool() ) { globalImages->flatNormalMap->Bind(); } // texture 1 will be the light falloff GL_SelectTexture( 1 ); qglEnable( GL_TEXTURE_GEN_S ); qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[3].ToFloatPtr() ); qglTexCoord2f( 0, 0.5 ); vLight->falloffImage->Bind(); qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 2 ); // set the constant color to a bit of an angle qglCombinerParameterfvNV( GL_CONSTANT_COLOR0_NV, tr.ambientLightVector.ToFloatPtr() ); // stage 0 sets primary_color = bump dot constant color qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_CONSTANT_COLOR0_NV, GL_EXPAND_NORMAL_NV, GL_RGB ); qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB ); qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB, GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_TRUE, GL_FALSE, GL_FALSE ); // stage 1 alpha sets primary_color = primary_color * falloff qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE ); qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_TEXTURE1_ARB, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA ); qglCombinerOutputNV( GL_COMBINER1_NV, GL_ALPHA, GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE ); // final combiner takes the result for the alpha channel qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA ); // draw it RB_DrawElementsWithCounters( tri ); globalImages->BindNull(); qglDisable( GL_TEXTURE_GEN_S ); GL_SelectTexture( 0 ); RB_FinishStageTexture( &surfaceStage->texture, surf ); continue; } // // draw light falloff to the alpha channel // GL_State( GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc ); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); qglDisableClientState( GL_COLOR_ARRAY ); qglEnable( GL_TEXTURE_GEN_S ); qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[3].ToFloatPtr() ); qglTexCoord2f( 0, 0.5 ); vLight->falloffImage->Bind(); // make sure a combiner output doesn't step on the texture qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 1 ); qglCombinerOutputNV( GL_COMBINER0_NV, GL_ALPHA, GL_DISCARD_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE ); // final combiner qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_TEXTURE0_ARB, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA ); // draw it RB_DrawElementsWithCounters( tri ); qglDisable( GL_TEXTURE_GEN_S ); // // draw the bump map result onto the alpha channel // GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ZERO | GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc ); // texture 0 will be the per-surface bump map GL_SelectTexture( 0 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf ); // texture 1 is the normalization cube map // the texccords are the non-normalized vector towards the light origin GL_SelectTexture( 1 ); globalImages->normalCubeMapImage->Bind(); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 3, GL_FLOAT, sizeof( lightingCache_t ), ((lightingCache_t *)vertexCache.Position(tri->lightingCache))->localLightVector.ToFloatPtr() ); qglDisableClientState( GL_COLOR_ARRAY ); // program the nvidia register combiners // I just want alpha = Dot( texture0, texture1 ) qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 1 ); // stage 0 rgb performs the dot product // SPARE0 = TEXTURE0 dot TEXTURE1 qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_RGB ); qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB ); qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB, GL_SPARE0_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_TRUE, GL_FALSE, GL_FALSE ); // final combiner just takes the dot result and puts it in alpha qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE ); // draw it RB_DrawElementsWithCounters( tri ); globalImages->BindNull(); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 0 ); RB_FinishStageTexture( &surfaceStage->texture, surf ); continue; } if ( surfaceStage->lighting == SL_DIFFUSE ) { if ( !lastBumpStage ) { common->Printf( "shader %s: diffuse stage without a preceeding bumpmap stage\n", surfaceShader->GetName() ); continue; } } //----------------------------------------------------- // // specular exponent modification of the bump / falloff // //----------------------------------------------------- if ( surfaceStage->lighting == SL_SPECULAR ) { // put specular bump map into alpha channel, then treat as a diffuse // allow the specular to be skipped as a user speed optimization if ( r_skipSpecular.GetBool() ) { continue; } // ambient lights don't have specular if ( lightShader->IsAmbientLight() ) { continue; } if ( !lastBumpStage ) { common->Printf( "shader %s: specular stage without a preceeding bumpmap stage\n", surfaceShader->GetName() ); continue; } GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_SRC_ALPHA | GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc ); // texture 0 will be the per-surface bump map GL_SelectTexture( 0 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); RB_BindStageTexture( surfaceRegs, &lastBumpStage->texture, surf ); // development aid if ( r_skipBump.GetBool() ) { globalImages->flatNormalMap->Bind(); } // texture 1 is the normalization cube map // indexed by the dynamic halfangle texcoords GL_SelectTexture( 1 ); globalImages->normalCubeMapImage->Bind(); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 4, GL_FLOAT, 0, vertexCache.Position( surf->dynamicTexCoords ) ); // program the nvidia register combiners qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 2 ); // stage 0 rgb performs the dot product // GL_PRIMARY_COLOR_NV = ( TEXTURE0 dot TEXTURE1 - 0.5 ) * 2 // the scale and bias steepen the specular curve qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_RGB ); qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB ); qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB, GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_SCALE_BY_TWO_NV, GL_BIAS_BY_NEGATIVE_ONE_HALF_NV, GL_TRUE, GL_FALSE, GL_FALSE ); // stage 0 alpha does nothing qglCombinerOutputNV( GL_COMBINER0_NV, GL_ALPHA, GL_DISCARD_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE ); // stage 1 rgb does nothing qglCombinerOutputNV( GL_COMBINER1_NV, GL_RGB, GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE ); // stage 1 alpha takes bump * bump // PRIMARY_COLOR = ( GL_PRIMARY_COLOR_NV * GL_PRIMARY_COLOR_NV - 0.5 ) * 2 // the scale and bias steepen the specular curve qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_A_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE ); qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_B_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE ); qglCombinerOutputNV( GL_COMBINER1_NV, GL_ALPHA, GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV, GL_SCALE_BY_TWO_NV, GL_BIAS_BY_NEGATIVE_ONE_HALF_NV, GL_FALSE, GL_FALSE, GL_FALSE ); // final combiner qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA ); // draw it RB_DrawElementsWithCounters( tri ); globalImages->BindNull(); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 0 ); RB_FinishStageTexture( &lastBumpStage->texture, surf ); // the bump map in the alpha channel is now corrupted, so a normal diffuse // map can't be drawn unless a new bumpmap is put down lastBumpStage = NULL; // fall through to the common handling of diffuse and specular projected lighting } //----------------------------------------------------- // // projected light / surface color for diffuse and specular maps // //----------------------------------------------------- if ( surfaceStage->lighting == SL_DIFFUSE || surfaceStage->lighting == SL_SPECULAR ) { // don't trash alpha GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ONE | GLS_ALPHAMASK | GLS_DEPTHMASK | backEnd.depthFunc ); // texture 0 will get the surface color texture GL_SelectTexture( 0 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf ); // development aid if ( ( surfaceStage->lighting == SL_DIFFUSE && r_skipDiffuse.GetBool() ) || ( surfaceStage->lighting == SL_SPECULAR && r_skipSpecular.GetBool() ) ) { globalImages->blackImage->Bind(); } // texture 1 will get the light projected texture GL_SelectTexture( 1 ); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); qglEnable( GL_TEXTURE_GEN_S ); qglEnable( GL_TEXTURE_GEN_T ); qglEnable( GL_TEXTURE_GEN_Q ); qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[0].ToFloatPtr() ); qglTexGenfv( GL_T, GL_OBJECT_PLANE, lightProject[1].ToFloatPtr() ); qglTexGenfv( GL_Q, GL_OBJECT_PLANE, lightProject[2].ToFloatPtr() ); // texture0 * texture1 * primaryColor * constantColor qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 1 ); // SPARE0 = TEXTURE0 * PRIMARY_COLOR // SPARE1 = TEXTURE1 * CONSTANT_COLOR qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE0_ARB, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); // variable B will be overriden based on the stage vertexColor option if ( surfaceStage->vertexColor == SVC_MODULATE ) { qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglEnableClientState( GL_COLOR_ARRAY ); } else if ( surfaceStage->vertexColor == SVC_INVERSE_MODULATE ) { qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_INVERT_NV, GL_RGB ); qglEnableClientState( GL_COLOR_ARRAY ); } else { // SVC_IGNORE qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB ); qglDisableClientState( GL_COLOR_ARRAY ); } qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV, GL_TEXTURE1_ARB, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV, GL_CONSTANT_COLOR1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB, GL_SPARE0_NV, GL_SPARE1_NV, GL_DISCARD_NV, GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE ); // final combiner qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_SPARE1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB ); qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA ); // for all light stages, multiply the projected color by the surface // color, and blend with the framebuffer for ( int j = 0 ; j < lightShader->GetNumStages() ; j++ ) { const shaderStage_t *lightStage = lightShader->GetStage( j ); float color[4]; // ignore stages that fail the condition if ( !lightRegs[ lightStage->conditionRegister ] ) { continue; } // set the color to the light color times the surface color color[0] = backEnd.lightScale * lightRegs[ lightStage->color.registers[0] ] * surfaceRegs[ surfaceStage->color.registers[0] ]; color[1] = backEnd.lightScale * lightRegs[ lightStage->color.registers[1] ] * surfaceRegs[ surfaceStage->color.registers[1] ]; color[2] = backEnd.lightScale * lightRegs[ lightStage->color.registers[2] ] * surfaceRegs[ surfaceStage->color.registers[2] ]; color[3] = 1; // don't draw if it would be all black if ( color[0] == 0 && color[1] == 0 && color[2] == 0 ) { continue; } qglCombinerParameterfvNV( GL_CONSTANT_COLOR1_NV, color ); RB_BindStageTexture( lightRegs, &lightStage->texture, surf ); RB_DrawElementsWithCounters( tri ); RB_FinishStageTexture( &lightStage->texture, surf ); } if ( surfaceStage->vertexColor != SVC_IGNORE ) { qglDisableClientState( GL_COLOR_ARRAY ); } qglDisable( GL_TEXTURE_GEN_S ); qglDisable( GL_TEXTURE_GEN_T ); qglDisable( GL_TEXTURE_GEN_Q ); globalImages->BindNull(); GL_SelectTexture( 0 ); RB_FinishStageTexture( &surfaceStage->texture, surf ); continue; } } // unhack depth range if needed if ( surf->space->weaponDepthHack || surf->space->modelDepthHack != 0.0f ) { RB_LeaveDepthHack(); } }
/* ================= RB_BeginDrawingView Any mirrored or portaled views have already been drawn, so prepare to actually render the visible surfaces for this view ================= */ void RB_BeginDrawingView (void) { int clearBits = 0; // sync with gl if needed if ( r_finish->integer == 1 && !glState.finishCalled ) { qglFinish (); glState.finishCalled = qtrue; } if ( r_finish->integer == 0 ) { glState.finishCalled = qtrue; } // we will need to change the projection matrix before drawing // 2D images again backEnd.projection2D = qfalse; // // set the modelview matrix for the viewer // SetViewportAndScissor(); // ensures that depth writes are enabled for the depth clear GL_State( GLS_DEFAULT ); // clear relevant buffers clearBits = GL_DEPTH_BUFFER_BIT; if ( r_measureOverdraw->integer || r_shadows->integer == 2 ) { clearBits |= GL_STENCIL_BUFFER_BIT; } if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) ) { clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used #ifdef _DEBUG qglClearColor( 0.8f, 0.7f, 0.4f, 1.0f ); // FIXME: get color of sky #else qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f ); // FIXME: get color of sky #endif } #ifdef VCMODS_DEPTH qglClear( clearBits | GL_COLOR_BUFFER_BIT); #else qglClear( clearBits ); #endif if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) ) { RB_Hyperspace(); return; } else { backEnd.isHyperspace = qfalse; } glState.faceCulling = -1; // force face culling to set next time // we will only draw a sun if there was sky rendered in this view backEnd.skyRenderedThisView = qfalse; // clip to the plane of the portal if ( backEnd.viewParms.isPortal ) { float plane[4]; #ifdef VCMODS_OPENGLES float plane2[4]; #else double plane2[4]; #endif plane[0] = backEnd.viewParms.portalPlane.normal[0]; plane[1] = backEnd.viewParms.portalPlane.normal[1]; plane[2] = backEnd.viewParms.portalPlane.normal[2]; plane[3] = backEnd.viewParms.portalPlane.dist; plane2[0] = DotProduct (backEnd.viewParms.or.axis[0], plane); plane2[1] = DotProduct (backEnd.viewParms.or.axis[1], plane); plane2[2] = DotProduct (backEnd.viewParms.or.axis[2], plane); plane2[3] = DotProduct (plane, backEnd.viewParms.or.origin) - plane[3]; qglLoadMatrixf( s_flipMatrix ); qglClipPlane (GL_CLIP_PLANE0, plane2); qglEnable (GL_CLIP_PLANE0); } else { qglDisable (GL_CLIP_PLANE0); } }
void FBO_BlitFromTexture(struct image_s *src, vec4_t inSrcTexCorners, vec2_t inSrcTexScale, FBO_t *dst, ivec4_t inDstBox, struct shaderProgram_s *shaderProgram, vec4_t inColor, int blend) { ivec4_t dstBox; vec4_t color; vec4_t quadVerts[4]; vec2_t texCoords[4]; vec2_t invTexRes; FBO_t *oldFbo = glState.currentFBO; mat4_t projection; int width, height; if (!src) { ri.Printf(PRINT_WARNING, "Tried to blit from a NULL texture!\n"); return; } width = dst ? dst->width : glConfig.vidWidth; height = dst ? dst->height : glConfig.vidHeight; if (inSrcTexCorners) { VectorSet2(texCoords[0], inSrcTexCorners[0], inSrcTexCorners[1]); VectorSet2(texCoords[1], inSrcTexCorners[2], inSrcTexCorners[1]); VectorSet2(texCoords[2], inSrcTexCorners[2], inSrcTexCorners[3]); VectorSet2(texCoords[3], inSrcTexCorners[0], inSrcTexCorners[3]); } else { VectorSet2(texCoords[0], 0.0f, 1.0f); VectorSet2(texCoords[1], 1.0f, 1.0f); VectorSet2(texCoords[2], 1.0f, 0.0f); VectorSet2(texCoords[3], 0.0f, 0.0f); } // framebuffers are 0 bottom, Y up. if (inDstBox) { dstBox[0] = inDstBox[0]; dstBox[1] = height - inDstBox[1] - inDstBox[3]; dstBox[2] = inDstBox[0] + inDstBox[2]; dstBox[3] = height - inDstBox[1]; } else { VectorSet4(dstBox, 0, height, width, 0); } if (inSrcTexScale) { VectorCopy2(inSrcTexScale, invTexRes); } else { VectorSet2(invTexRes, 1.0f, 1.0f); } if (inColor) { VectorCopy4(inColor, color); } else { VectorCopy4(colorWhite, color); } if (!shaderProgram) { shaderProgram = &tr.textureColorShader; } FBO_Bind(dst); qglViewport( 0, 0, width, height ); qglScissor( 0, 0, width, height ); Mat4Ortho(0, width, height, 0, 0, 1, projection); GL_Cull( CT_TWO_SIDED ); GL_BindToTMU(src, TB_COLORMAP); VectorSet4(quadVerts[0], dstBox[0], dstBox[1], 0.0f, 1.0f); VectorSet4(quadVerts[1], dstBox[2], dstBox[1], 0.0f, 1.0f); VectorSet4(quadVerts[2], dstBox[2], dstBox[3], 0.0f, 1.0f); VectorSet4(quadVerts[3], dstBox[0], dstBox[3], 0.0f, 1.0f); invTexRes[0] /= src->width; invTexRes[1] /= src->height; GL_State( blend ); GLSL_BindProgram(shaderProgram); GLSL_SetUniformMat4(shaderProgram, UNIFORM_MODELVIEWPROJECTIONMATRIX, projection); GLSL_SetUniformVec4(shaderProgram, UNIFORM_COLOR, color); GLSL_SetUniformVec2(shaderProgram, UNIFORM_INVTEXRES, invTexRes); GLSL_SetUniformVec2(shaderProgram, UNIFORM_AUTOEXPOSUREMINMAX, tr.refdef.autoExposureMinMax); GLSL_SetUniformVec3(shaderProgram, UNIFORM_TONEMINAVGMAXLINEAR, tr.refdef.toneMinAvgMaxLinear); RB_InstantQuad2(quadVerts, texCoords); FBO_Bind(oldFbo); }
void CQuickSpriteSystem::Flush(void) { if (mNextVert==0) { return; } // // render the main pass // R_BindAnimatedImage( mTexBundle ); GL_State(mGLStateBits); // // set arrays and lock // qglEnableClientState( GL_TEXTURE_COORD_ARRAY); qglTexCoordPointer( 2, GL_FLOAT, 0, mTextureCoords ); qglEnableClientState( GL_COLOR_ARRAY); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, mColors ); qglVertexPointer (3, GL_FLOAT, 16, mVerts); if ( qglLockArraysEXT ) { qglLockArraysEXT(0, mNextVert); GLimp_LogComment( "glLockArraysEXT\n" ); } qglDrawArrays(GL_QUADS, 0, mNextVert); backEnd.pc.c_vertexes += mNextVert; backEnd.pc.c_indexes += mNextVert; backEnd.pc.c_totalIndexes += mNextVert; if (mUseFog) { // // render the fog pass // GL_Bind( tr.fogImage ); GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_DEPTHFUNC_EQUAL ); // // set arrays and lock // qglTexCoordPointer( 2, GL_FLOAT, 0, mFogTextureCoords); // qglEnableClientState( GL_TEXTURE_COORD_ARRAY); // Done above qglDisableClientState( GL_COLOR_ARRAY ); qglColor4ubv((GLubyte *)&mFogColor); // qglVertexPointer (3, GL_FLOAT, 16, mVerts); // Done above qglDrawArrays(GL_QUADS, 0, mNextVert); // Second pass from fog backEnd.pc.c_totalIndexes += mNextVert; } // // unlock arrays // if (qglUnlockArraysEXT) { qglUnlockArraysEXT(); GLimp_LogComment( "glUnlockArraysEXT\n" ); } mNextVert=0; }
/* ================= RB_BeginDrawingView Any mirrored or portaled views have already been drawn, so prepare to actually render the visible surfaces for this view ================= */ static void RB_BeginDrawingView (void) { int clearBits = GL_DEPTH_BUFFER_BIT; // sync with gl if needed if ( r_finish->integer == 1 && !glState.finishCalled ) { qglFinish (); glState.finishCalled = qtrue; } if ( r_finish->integer == 0 ) { glState.finishCalled = qtrue; } // we will need to change the projection matrix before drawing // 2D images again backEnd.projection2D = qfalse; // // set the modelview matrix for the viewer // SetViewportAndScissor(); // ensures that depth writes are enabled for the depth clear GL_State( GLS_DEFAULT ); // clear relevant buffers if ( r_measureOverdraw->integer || r_shadows->integer == 2 || tr_stencilled ) { clearBits |= GL_STENCIL_BUFFER_BIT; tr_stencilled = false; } if (skyboxportal) { if ( backEnd.refdef.rdflags & RDF_SKYBOXPORTAL ) { // portal scene, clear whatever is necessary if (r_fastsky->integer || (backEnd.refdef.rdflags & RDF_NOWORLDMODEL) ) { // fastsky: clear color // try clearing first with the portal sky fog color, then the world fog color, then finally a default clearBits |= GL_COLOR_BUFFER_BIT; if (tr.world && tr.world->globalFog != -1) { const fog_t *fog = &tr.world->fogs[tr.world->globalFog]; qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f ); } else { qglClearColor ( 0.3f, 0.3f, 0.3f, 1.0 ); } } } } else { if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) && !g_bRenderGlowingObjects ) { if (tr.world && tr.world->globalFog != -1) { const fog_t *fog = &tr.world->fogs[tr.world->globalFog]; qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f ); } else { qglClearColor( 0.3f, 0.3f, 0.3f, 1 ); // FIXME: get color of sky } clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used } } if ( !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) && ( r_DynamicGlow->integer && !g_bRenderGlowingObjects ) ) { if (tr.world && tr.world->globalFog != -1) { //this is because of a bug in multiple scenes I think, it needs to clear for the second scene but it doesn't normally. const fog_t *fog = &tr.world->fogs[tr.world->globalFog]; qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f ); clearBits |= GL_COLOR_BUFFER_BIT; } } // If this pass is to just render the glowing objects, don't clear the depth buffer since // we're sharing it with the main scene (since the main scene has already been rendered). -AReis if ( g_bRenderGlowingObjects ) { clearBits &= ~GL_DEPTH_BUFFER_BIT; } if (clearBits) { qglClear( clearBits ); } if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) ) { RB_Hyperspace(); return; } else { backEnd.isHyperspace = qfalse; } glState.faceCulling = -1; // force face culling to set next time // we will only draw a sun if there was sky rendered in this view backEnd.skyRenderedThisView = qfalse; // clip to the plane of the portal if ( backEnd.viewParms.isPortal ) { float plane[4]; double plane2[4]; plane[0] = backEnd.viewParms.portalPlane.normal[0]; plane[1] = backEnd.viewParms.portalPlane.normal[1]; plane[2] = backEnd.viewParms.portalPlane.normal[2]; plane[3] = backEnd.viewParms.portalPlane.dist; plane2[0] = DotProduct (backEnd.viewParms.ori.axis[0], plane); plane2[1] = DotProduct (backEnd.viewParms.ori.axis[1], plane); plane2[2] = DotProduct (backEnd.viewParms.ori.axis[2], plane); plane2[3] = DotProduct (plane, backEnd.viewParms.ori.origin) - plane[3]; qglLoadMatrixf( s_flipMatrix ); qglClipPlane (GL_CLIP_PLANE0, plane2); qglEnable (GL_CLIP_PLANE0); } else { qglDisable (GL_CLIP_PLANE0); } }
// Draw the glow blur over the screen additively. static inline void RB_DrawGlowOverlay() { qglDisable (GL_CLIP_PLANE0); GL_Cull( CT_TWO_SIDED ); // Go into orthographic 2d mode. qglMatrixMode(GL_PROJECTION); qglPushMatrix(); qglLoadIdentity(); qglOrtho(0, glConfig.vidWidth, glConfig.vidHeight, 0, -1, 1); qglMatrixMode(GL_MODELVIEW); qglPushMatrix(); qglLoadIdentity(); GL_State(GLS_DEPTHTEST_DISABLE); qglDisable( GL_TEXTURE_2D ); qglEnable( GL_TEXTURE_RECTANGLE_EXT ); // For debug purposes. if ( r_DynamicGlow->integer != 2 ) { // Render the normal scene texture. qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.sceneImage ); qglBegin(GL_QUADS); qglColor4f( 1.0f, 1.0f, 1.0f, 1.0f ); qglTexCoord2f( 0, glConfig.vidHeight ); qglVertex2f( 0, 0 ); qglTexCoord2f( 0, 0 ); qglVertex2f( 0, glConfig.vidHeight ); qglTexCoord2f( glConfig.vidWidth, 0 ); qglVertex2f( glConfig.vidWidth, glConfig.vidHeight ); qglTexCoord2f( glConfig.vidWidth, glConfig.vidHeight ); qglVertex2f( glConfig.vidWidth, 0 ); qglEnd(); } // One and Inverse Src Color give a very soft addition, while one one is a bit stronger. With one one we can // use additive blending through multitexture though. if ( r_DynamicGlowSoft->integer ) { qglBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_COLOR ); } else { qglBlendFunc( GL_ONE, GL_ONE ); } qglEnable( GL_BLEND ); // Now additively render the glow texture. qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.blurImage ); qglBegin(GL_QUADS); qglColor4f( 1.0f, 1.0f, 1.0f, 1.0f ); qglTexCoord2f( 0, r_DynamicGlowHeight->integer ); qglVertex2f( 0, 0 ); qglTexCoord2f( 0, 0 ); qglVertex2f( 0, glConfig.vidHeight ); qglTexCoord2f( r_DynamicGlowWidth->integer, 0 ); qglVertex2f( glConfig.vidWidth, glConfig.vidHeight ); qglTexCoord2f( r_DynamicGlowWidth->integer, r_DynamicGlowHeight->integer ); qglVertex2f( glConfig.vidWidth, 0 ); qglEnd(); qglDisable( GL_TEXTURE_RECTANGLE_EXT ); qglEnable( GL_TEXTURE_2D ); qglBlendFunc( GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR ); qglDisable( GL_BLEND ); qglMatrixMode(GL_PROJECTION); qglPopMatrix(); qglMatrixMode(GL_MODELVIEW); qglPopMatrix(); }
static void ProjectDlightTexture( void ) { int i, l; vec3_t origin; float *texCoords; byte *colors; byte clipBits[SHADER_MAX_VERTEXES]; float texCoordsArray[SHADER_MAX_VERTEXES][2]; byte colorArray[SHADER_MAX_VERTEXES][4]; glIndex_t hitIndexes[SHADER_MAX_INDEXES]; int numIndexes; float scale; float radius; int fogging; vec3_t floatColor; shaderStage_t *dStage; if ( !backEnd.refdef.num_dlights ) { return; } for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) { dlight_t *dl; if ( !( tess.dlightBits & ( 1 << l ) ) ) { continue; // this surface definately doesn't have any of this light } texCoords = texCoordsArray[0]; colors = colorArray[0]; dl = &backEnd.refdef.dlights[l]; VectorCopy( dl->transformed, origin ); radius = dl->radius; scale = 1.0f / radius; floatColor[0] = dl->color[0] * 255.0f; floatColor[1] = dl->color[1] * 255.0f; floatColor[2] = dl->color[2] * 255.0f; for ( i = 0 ; i < tess.numVertexes ; i++, texCoords += 2, colors += 4 ) { vec3_t dist; int clip; float modulate; backEnd.pc.c_dlightVertexes++; VectorSubtract( origin, tess.xyz[i], dist ); int l = 1; int bestIndex = 0; float greatest = tess.normal[i][0]; if (greatest < 0.0f) { greatest = -greatest; } if (VectorCompare(tess.normal[i], vec3_origin)) { //damn you terrain! bestIndex = 2; } else { while (l < 3) { if ((tess.normal[i][l] > greatest && tess.normal[i][l] > 0.0f) || (tess.normal[i][l] < -greatest && tess.normal[i][l] < 0.0f)) { greatest = tess.normal[i][l]; if (greatest < 0.0f) { greatest = -greatest; } bestIndex = l; } l++; } } float dUse = 0.0f; const float maxScale = 1.5f; const float maxGroundScale = 1.4f; const float lightScaleTolerance = 0.1f; if (bestIndex == 2) { dUse = origin[2]-tess.xyz[i][2]; if (dUse < 0.0f) { dUse = -dUse; } dUse = (radius*0.5f)/dUse; if (dUse > maxGroundScale) { dUse = maxGroundScale; } else if (dUse < 0.1f) { dUse = 0.1f; } if (VectorCompare(tess.normal[i], vec3_origin) || tess.normal[i][0] > lightScaleTolerance || tess.normal[i][0] < -lightScaleTolerance || tess.normal[i][1] > lightScaleTolerance || tess.normal[i][1] < -lightScaleTolerance) { //if not perfectly flat, we must use a constant dist scale = 1.0f / radius; } else { scale = 1.0f / (radius*dUse); } texCoords[0] = 0.5f + dist[0] * scale; texCoords[1] = 0.5f + dist[1] * scale; } else if (bestIndex == 1) { dUse = origin[1]-tess.xyz[i][1]; if (dUse < 0.0f) { dUse = -dUse; } dUse = (radius*0.5f)/dUse; if (dUse > maxScale) { dUse = maxScale; } else if (dUse < 0.1f) { dUse = 0.1f; } if (tess.normal[i][0] > lightScaleTolerance || tess.normal[i][0] < -lightScaleTolerance || tess.normal[i][2] > lightScaleTolerance || tess.normal[i][2] < -lightScaleTolerance) { //if not perfectly flat, we must use a constant dist scale = 1.0f / radius; } else { scale = 1.0f / (radius*dUse); } texCoords[0] = 0.5f + dist[0] * scale; texCoords[1] = 0.5f + dist[2] * scale; } else { dUse = origin[0]-tess.xyz[i][0]; if (dUse < 0.0f) { dUse = -dUse; } dUse = (radius*0.5f)/dUse; if (dUse > maxScale) { dUse = maxScale; } else if (dUse < 0.1f) { dUse = 0.1f; } if (tess.normal[i][2] > lightScaleTolerance || tess.normal[i][2] < -lightScaleTolerance || tess.normal[i][1] > lightScaleTolerance || tess.normal[i][1] < -lightScaleTolerance) { //if not perfectly flat, we must use a constant dist scale = 1.0f / radius; } else { scale = 1.0f / (radius*dUse); } texCoords[0] = 0.5f + dist[1] * scale; texCoords[1] = 0.5f + dist[2] * scale; } clip = 0; if ( texCoords[0] < 0.0f ) { clip |= 1; } else if ( texCoords[0] > 1.0f ) { clip |= 2; } if ( texCoords[1] < 0.0f ) { clip |= 4; } else if ( texCoords[1] > 1.0f ) { clip |= 8; } // modulate the strength based on the height and color if ( dist[bestIndex] > radius ) { clip |= 16; modulate = 0.0f; } else if ( dist[bestIndex] < -radius ) { clip |= 32; modulate = 0.0f; } else { dist[bestIndex] = Q_fabs(dist[bestIndex]); if ( dist[bestIndex] < radius * 0.5f ) { modulate = 1.0f; } else { modulate = 2.0f * (radius - dist[bestIndex]) * scale; } } clipBits[i] = clip; colors[0] = Q_ftol(floatColor[0] * modulate); colors[1] = Q_ftol(floatColor[1] * modulate); colors[2] = Q_ftol(floatColor[2] * modulate); colors[3] = 255; } // build a list of triangles that need light numIndexes = 0; for ( i = 0 ; i < tess.numIndexes ; i += 3 ) { int a, b, c; a = tess.indexes[i]; b = tess.indexes[i+1]; c = tess.indexes[i+2]; if ( clipBits[a] & clipBits[b] & clipBits[c] ) { continue; // not lighted } hitIndexes[numIndexes] = a; hitIndexes[numIndexes+1] = b; hitIndexes[numIndexes+2] = c; numIndexes += 3; } if ( !numIndexes ) { continue; } //don't have fog enabled when we redraw with alpha test, or it will double over //and screw the tri up -rww if (r_drawfog->value == 2 && tr.world && (tess.fogNum == tr.world->globalFog || tess.fogNum == tr.world->numfogs)) { fogging = qglIsEnabled(GL_FOG); if (fogging) { qglDisable(GL_FOG); } } else { fogging = 0; } dStage = NULL; if (tess.shader && qglActiveTextureARB) { int i = 0; while (i < tess.shader->numUnfoggedPasses) { const int blendBits = (GLS_SRCBLEND_BITS+GLS_DSTBLEND_BITS); if (((tess.shader->stages[i].bundle[0].image && !tess.shader->stages[i].bundle[0].isLightmap && !tess.shader->stages[i].bundle[0].numTexMods) || (tess.shader->stages[i].bundle[1].image && !tess.shader->stages[i].bundle[1].isLightmap && !tess.shader->stages[i].bundle[1].numTexMods)) && (tess.shader->stages[i].stateBits & blendBits) == 0 ) { //only use non-lightmap opaque stages dStage = &tess.shader->stages[i]; break; } i++; } } if (dStage) { GL_SelectTexture( 0 ); GL_State(0); qglTexCoordPointer( 2, GL_FLOAT, 0, tess.svars.texcoords[0] ); if (dStage->bundle[0].image && !dStage->bundle[0].isLightmap && !dStage->bundle[0].numTexMods) { R_BindAnimatedImage( &dStage->bundle[0] ); } else { R_BindAnimatedImage( &dStage->bundle[1] ); } GL_SelectTexture( 1 ); qglEnable( GL_TEXTURE_2D ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] ); qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray ); GL_Bind( tr.dlightImage ); GL_TexEnv( GL_MODULATE ); GL_State(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL);// | GLS_ATEST_GT_0); R_DrawElements( numIndexes, hitIndexes ); qglDisable( GL_TEXTURE_2D ); GL_SelectTexture(0); } else { qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] ); qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray ); GL_Bind( tr.dlightImage ); // include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light // where they aren't rendered if ( dl->additive ) { GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } else { GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } R_DrawElements( numIndexes, hitIndexes ); } if (fogging) { qglEnable(GL_FOG); } backEnd.pc.c_totalIndexes += numIndexes; backEnd.pc.c_dlightIndexes += numIndexes; } }
/* ============= RB_ARB2_CreateDrawInteractions ============= */ void RB_ARB2_CreateDrawInteractions( const drawSurf_t *surf ) { if ( !surf ) { return; } // perform setup here that will be constant for all interactions GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | backEnd.depthFunc ); // bind the vertex program if ( r_testARBProgram.GetBool() ) { qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_TEST ); qglBindProgramARB( GL_FRAGMENT_PROGRAM_ARB, FPROG_TEST ); } else { qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_INTERACTION ); qglBindProgramARB( GL_FRAGMENT_PROGRAM_ARB, FPROG_INTERACTION ); } qglEnable(GL_VERTEX_PROGRAM_ARB); qglEnable(GL_FRAGMENT_PROGRAM_ARB); // enable the vertex arrays qglEnableVertexAttribArrayARB( 8 ); qglEnableVertexAttribArrayARB( 9 ); qglEnableVertexAttribArrayARB( 10 ); qglEnableVertexAttribArrayARB( 11 ); qglEnableClientState( GL_COLOR_ARRAY ); // texture 0 is the normalization cube map for the vector towards the light GL_SelectTextureNoClient( 0 ); if ( backEnd.vLight->lightShader->IsAmbientLight() ) { globalImages->ambientNormalMap->Bind(); } else { globalImages->normalCubeMapImage->Bind(); } // texture 6 is the specular lookup table GL_SelectTextureNoClient( 6 ); if ( r_testARBProgram.GetBool() ) { globalImages->specular2DTableImage->Bind(); // variable specularity in alpha channel } else { globalImages->specularTableImage->Bind(); } for ( ; surf ; surf=surf->nextOnLight ) { // perform setup here that will not change over multiple interaction passes // set the vertex pointers idDrawVert *ac = (idDrawVert *)vertexCache.Position( surf->geo->ambientCache ); qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), ac->color ); qglVertexAttribPointerARB( 11, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->normal.ToFloatPtr() ); qglVertexAttribPointerARB( 10, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[1].ToFloatPtr() ); qglVertexAttribPointerARB( 9, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[0].ToFloatPtr() ); qglVertexAttribPointerARB( 8, 2, GL_FLOAT, false, sizeof( idDrawVert ), ac->st.ToFloatPtr() ); qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() ); // this may cause RB_ARB2_DrawInteraction to be exacuted multiple // times with different colors and images if the surface or light have multiple layers RB_CreateSingleDrawInteractions( surf, RB_ARB2_DrawInteraction ); } qglDisableVertexAttribArrayARB( 8 ); qglDisableVertexAttribArrayARB( 9 ); qglDisableVertexAttribArrayARB( 10 ); qglDisableVertexAttribArrayARB( 11 ); qglDisableClientState( GL_COLOR_ARRAY ); // disable features GL_SelectTextureNoClient( 6 ); globalImages->BindNull(); GL_SelectTextureNoClient( 5 ); globalImages->BindNull(); GL_SelectTextureNoClient( 4 ); globalImages->BindNull(); GL_SelectTextureNoClient( 3 ); globalImages->BindNull(); GL_SelectTextureNoClient( 2 ); globalImages->BindNull(); GL_SelectTextureNoClient( 1 ); globalImages->BindNull(); backEnd.glState.currenttmu = -1; GL_SelectTexture( 0 ); qglDisable(GL_VERTEX_PROGRAM_ARB); qglDisable(GL_FRAGMENT_PROGRAM_ARB); }
/* ================== RB_R200_ARB_CreateDrawInteractions ================== */ static void RB_R200_ARB_CreateDrawInteractions( const drawSurf_t *surf ) { if ( !surf ) { return; } // force a space calculation for light vectors backEnd.currentSpace = NULL; // set the depth test if ( surf->material->Coverage() == MC_TRANSLUCENT /* != C_PERFORATED */ ) { GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | GLS_DEPTHFUNC_LESS ); } else { // only draw on the alpha tested pixels that made it to the depth buffer GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | GLS_DEPTHFUNC_EQUAL ); } // start the vertex shader qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_R200_INTERACTION ); qglEnable(GL_VERTEX_PROGRAM_ARB); // start the fragment shader qglBindFragmentShaderATI( FPROG_FAST_PATH ); #if defined( MACOS_X ) qglEnable( GL_TEXT_FRAGMENT_SHADER_ATI ); #else qglEnable( GL_FRAGMENT_SHADER_ATI ); #endif qglColor4f( 1, 1, 1, 1 ); GL_SelectTexture( 1 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 2 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 3 ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); for ( ; surf ; surf=surf->nextOnLight ) { RB_CreateSingleDrawInteractions( surf, RB_R200_ARB_DrawInteraction ); } GL_SelectTexture( 5 ); globalImages->BindNull(); GL_SelectTexture( 4 ); globalImages->BindNull(); GL_SelectTexture( 3 ); globalImages->BindNull(); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 2 ); globalImages->BindNull(); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 1 ); globalImages->BindNull(); qglDisableClientState( GL_TEXTURE_COORD_ARRAY ); GL_SelectTexture( 0 ); qglDisable( GL_VERTEX_PROGRAM_ARB ); #if defined( MACOS_X ) qglDisable( GL_TEXT_FRAGMENT_SHADER_ATI ); #else qglDisable( GL_FRAGMENT_SHADER_ATI ); #endif }
/* ============= RB_DrawSurfs ============= */ const void *RB_DrawSurfs( const void *data ) { const drawSurfsCommand_t *cmd; // finish any 2D drawing if needed if ( tess.numIndexes ) { RB_EndSurface(); } cmd = (const drawSurfsCommand_t *)data; backEnd.refdef = cmd->refdef; backEnd.viewParms = cmd->viewParms; // clear the z buffer, set the modelview, etc RB_BeginDrawingView (); if (glRefConfig.framebufferObject && (backEnd.viewParms.flags & VPF_DEPTHCLAMP) && glRefConfig.depthClamp) { qglEnable(GL_DEPTH_CLAMP); } if (glRefConfig.framebufferObject && !(backEnd.refdef.rdflags & RDF_NOWORLDMODEL) && (r_depthPrepass->integer || (backEnd.viewParms.flags & VPF_DEPTHSHADOW))) { FBO_t *oldFbo = glState.currentFBO; backEnd.depthFill = qtrue; qglColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); RB_RenderDrawSurfList( cmd->drawSurfs, cmd->numDrawSurfs ); qglColorMask(!backEnd.colorMask[0], !backEnd.colorMask[1], !backEnd.colorMask[2], !backEnd.colorMask[3]); backEnd.depthFill = qfalse; if (tr.msaaResolveFbo) { // If we're using multisampling, resolve the depth first FBO_FastBlit(tr.renderFbo, NULL, tr.msaaResolveFbo, NULL, GL_DEPTH_BUFFER_BIT, GL_NEAREST); } else if (tr.renderFbo == NULL) { // If we're rendering directly to the screen, copy the depth to a texture GL_BindToTMU(tr.renderDepthImage, 0); qglCopyTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, 0, 0, glConfig.vidWidth, glConfig.vidHeight, 0); } if (r_ssao->integer) { // need the depth in a texture we can do GL_LINEAR sampling on, so copy it to an HDR image FBO_BlitFromTexture(tr.renderDepthImage, NULL, NULL, tr.hdrDepthFbo, NULL, NULL, NULL, 0); } if (backEnd.viewParms.flags & VPF_USESUNLIGHT) { vec4_t quadVerts[4]; vec2_t texCoords[4]; vec4_t box; FBO_Bind(tr.screenShadowFbo); box[0] = backEnd.viewParms.viewportX * tr.screenShadowFbo->width / (float)glConfig.vidWidth; box[1] = backEnd.viewParms.viewportY * tr.screenShadowFbo->height / (float)glConfig.vidHeight; box[2] = backEnd.viewParms.viewportWidth * tr.screenShadowFbo->width / (float)glConfig.vidWidth; box[3] = backEnd.viewParms.viewportHeight * tr.screenShadowFbo->height / (float)glConfig.vidHeight; qglViewport(box[0], box[1], box[2], box[3]); qglScissor(box[0], box[1], box[2], box[3]); box[0] = backEnd.viewParms.viewportX / (float)glConfig.vidWidth; box[1] = backEnd.viewParms.viewportY / (float)glConfig.vidHeight; box[2] = box[0] + backEnd.viewParms.viewportWidth / (float)glConfig.vidWidth; box[3] = box[1] + backEnd.viewParms.viewportHeight / (float)glConfig.vidHeight; texCoords[0][0] = box[0]; texCoords[0][1] = box[3]; texCoords[1][0] = box[2]; texCoords[1][1] = box[3]; texCoords[2][0] = box[2]; texCoords[2][1] = box[1]; texCoords[3][0] = box[0]; texCoords[3][1] = box[1]; box[0] = -1.0f; box[1] = -1.0f; box[2] = 1.0f; box[3] = 1.0f; VectorSet4(quadVerts[0], box[0], box[3], 0, 1); VectorSet4(quadVerts[1], box[2], box[3], 0, 1); VectorSet4(quadVerts[2], box[2], box[1], 0, 1); VectorSet4(quadVerts[3], box[0], box[1], 0, 1); GL_State( GLS_DEPTHTEST_DISABLE ); GLSL_BindProgram(&tr.shadowmaskShader); GL_BindToTMU(tr.renderDepthImage, TB_COLORMAP); GL_BindToTMU(tr.sunShadowDepthImage[0], TB_SHADOWMAP); GL_BindToTMU(tr.sunShadowDepthImage[1], TB_SHADOWMAP2); GL_BindToTMU(tr.sunShadowDepthImage[2], TB_SHADOWMAP3); GLSL_SetUniformMatrix16(&tr.shadowmaskShader, UNIFORM_SHADOWMVP, backEnd.refdef.sunShadowMvp[0]); GLSL_SetUniformMatrix16(&tr.shadowmaskShader, UNIFORM_SHADOWMVP2, backEnd.refdef.sunShadowMvp[1]); GLSL_SetUniformMatrix16(&tr.shadowmaskShader, UNIFORM_SHADOWMVP3, backEnd.refdef.sunShadowMvp[2]); GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWORIGIN, backEnd.refdef.vieworg); { vec4_t viewInfo; vec3_t viewVector; float zmax = backEnd.viewParms.zFar; float ymax = zmax * tan(backEnd.viewParms.fovY * M_PI / 360.0f); float xmax = zmax * tan(backEnd.viewParms.fovX * M_PI / 360.0f); float zmin = r_znear->value; VectorScale(backEnd.refdef.viewaxis[0], zmax, viewVector); GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWFORWARD, viewVector); VectorScale(backEnd.refdef.viewaxis[1], xmax, viewVector); GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWLEFT, viewVector); VectorScale(backEnd.refdef.viewaxis[2], ymax, viewVector); GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWUP, viewVector); VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0); GLSL_SetUniformVec4(&tr.shadowmaskShader, UNIFORM_VIEWINFO, viewInfo); } RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes); } if (r_ssao->integer) { vec4_t quadVerts[4]; vec2_t texCoords[4]; FBO_Bind(tr.quarterFbo[0]); qglViewport(0, 0, tr.quarterFbo[0]->width, tr.quarterFbo[0]->height); qglScissor(0, 0, tr.quarterFbo[0]->width, tr.quarterFbo[0]->height); VectorSet4(quadVerts[0], -1, 1, 0, 1); VectorSet4(quadVerts[1], 1, 1, 0, 1); VectorSet4(quadVerts[2], 1, -1, 0, 1); VectorSet4(quadVerts[3], -1, -1, 0, 1); texCoords[0][0] = 0; texCoords[0][1] = 1; texCoords[1][0] = 1; texCoords[1][1] = 1; texCoords[2][0] = 1; texCoords[2][1] = 0; texCoords[3][0] = 0; texCoords[3][1] = 0; GL_State( GLS_DEPTHTEST_DISABLE ); GLSL_BindProgram(&tr.ssaoShader); GL_BindToTMU(tr.hdrDepthImage, TB_COLORMAP); { vec4_t viewInfo; float zmax = backEnd.viewParms.zFar; float zmin = r_znear->value; VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0); GLSL_SetUniformVec4(&tr.ssaoShader, UNIFORM_VIEWINFO, viewInfo); } RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes); FBO_Bind(tr.quarterFbo[1]); qglViewport(0, 0, tr.quarterFbo[1]->width, tr.quarterFbo[1]->height); qglScissor(0, 0, tr.quarterFbo[1]->width, tr.quarterFbo[1]->height); GLSL_BindProgram(&tr.depthBlurShader[0]); GL_BindToTMU(tr.quarterImage[0], TB_COLORMAP); GL_BindToTMU(tr.hdrDepthImage, TB_LIGHTMAP); { vec4_t viewInfo; float zmax = backEnd.viewParms.zFar; float zmin = r_znear->value; VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0); GLSL_SetUniformVec4(&tr.depthBlurShader[0], UNIFORM_VIEWINFO, viewInfo); } RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes); FBO_Bind(tr.screenSsaoFbo); qglViewport(0, 0, tr.screenSsaoFbo->width, tr.screenSsaoFbo->height); qglScissor(0, 0, tr.screenSsaoFbo->width, tr.screenSsaoFbo->height); GLSL_BindProgram(&tr.depthBlurShader[1]); GL_BindToTMU(tr.quarterImage[1], TB_COLORMAP); GL_BindToTMU(tr.hdrDepthImage, TB_LIGHTMAP); { vec4_t viewInfo; float zmax = backEnd.viewParms.zFar; float zmin = r_znear->value; VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0); GLSL_SetUniformVec4(&tr.depthBlurShader[1], UNIFORM_VIEWINFO, viewInfo); } RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes); } // reset viewport and scissor FBO_Bind(oldFbo); SetViewportAndScissor(); } if (glRefConfig.framebufferObject && (backEnd.viewParms.flags & VPF_DEPTHCLAMP) && glRefConfig.depthClamp) { qglDisable(GL_DEPTH_CLAMP); } if (!(backEnd.viewParms.flags & VPF_DEPTHSHADOW)) { RB_RenderDrawSurfList( cmd->drawSurfs, cmd->numDrawSurfs ); if (r_drawSun->integer) { RB_DrawSun(0.1, tr.sunShader); } if (r_drawSunRays->integer) { FBO_t *oldFbo = glState.currentFBO; FBO_Bind(tr.sunRaysFbo); qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f ); qglClear( GL_COLOR_BUFFER_BIT ); if (glRefConfig.occlusionQuery) { tr.sunFlareQueryActive[tr.sunFlareQueryIndex] = qtrue; qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, tr.sunFlareQuery[tr.sunFlareQueryIndex]); } RB_DrawSun(0.3, tr.sunFlareShader); if (glRefConfig.occlusionQuery) { qglEndQueryARB(GL_SAMPLES_PASSED_ARB); } FBO_Bind(oldFbo); } // darken down any stencil shadows RB_ShadowFinish(); // add light flares on lights that aren't obscured RB_RenderFlares(); } //if (glRefConfig.framebufferObject) //FBO_Bind(NULL); return (const void *)(cmd + 1); }
/** * @brief Any mirrored or portaled views have already been drawn, so prepare * to actually render the visible surfaces for this view */ void RB_BeginDrawingView(void) { int clearBits = 0; // sync with gl if needed if (r_finish->integer == 1 && !glState.finishCalled) { qglFinish(); glState.finishCalled = qtrue; } if (r_finish->integer == 0) { glState.finishCalled = qtrue; } // we will need to change the projection matrix before drawing // 2D images again backEnd.projection2D = qfalse; // set the modelview matrix for the viewer SetViewportAndScissor(); // ensures that depth writes are enabled for the depth clear GL_State(GLS_DEFAULT); ////////// modified to ensure one glclear() per frame at most // clear relevant buffers clearBits = 0; if (r_measureOverdraw->integer || r_shadows->integer == 2) { clearBits |= GL_STENCIL_BUFFER_BIT; } // global q3 fog volume else if (tr.world && tr.world->globalFog >= 0) { clearBits |= GL_DEPTH_BUFFER_BIT; clearBits |= GL_COLOR_BUFFER_BIT; // qglClearColor(tr.world->fogs[tr.world->globalFog].shader->fogParms.color[0] * tr.identityLight, tr.world->fogs[tr.world->globalFog].shader->fogParms.color[1] * tr.identityLight, tr.world->fogs[tr.world->globalFog].shader->fogParms.color[2] * tr.identityLight, 1.0); } else if (skyboxportal) { if (backEnd.refdef.rdflags & RDF_SKYBOXPORTAL) // portal scene, clear whatever is necessary { clearBits |= GL_DEPTH_BUFFER_BIT; if (r_fastSky->integer || (backEnd.refdef.rdflags & RDF_NOWORLDMODEL)) // fastsky: clear color { // try clearing first with the portal sky fog color, then the world fog color, then finally a default clearBits |= GL_COLOR_BUFFER_BIT; if (glfogsettings[FOG_PORTALVIEW].registered) { qglClearColor(glfogsettings[FOG_PORTALVIEW].color[0], glfogsettings[FOG_PORTALVIEW].color[1], glfogsettings[FOG_PORTALVIEW].color[2], glfogsettings[FOG_PORTALVIEW].color[3]); } else if (glfogNum > FOG_NONE && glfogsettings[FOG_CURRENT].registered) { qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]); } else { qglClearColor(0.5, 0.5, 0.5, 1.0); } } else // rendered sky (either clear color or draw quake sky) { if (glfogsettings[FOG_PORTALVIEW].registered) { qglClearColor(glfogsettings[FOG_PORTALVIEW].color[0], glfogsettings[FOG_PORTALVIEW].color[1], glfogsettings[FOG_PORTALVIEW].color[2], glfogsettings[FOG_PORTALVIEW].color[3]); if (glfogsettings[FOG_PORTALVIEW].clearscreen) // portal fog requests a screen clear (distance fog rather than quake sky) { clearBits |= GL_COLOR_BUFFER_BIT; } } } } else // world scene with portal sky, don't clear any buffers, just set the fog color if there is one { clearBits |= GL_DEPTH_BUFFER_BIT; // this will go when I get the portal sky rendering way out in the zbuffer (or not writing to zbuffer at all) if (glfogNum > FOG_NONE && glfogsettings[FOG_CURRENT].registered) { if (backEnd.refdef.rdflags & RDF_UNDERWATER) { if (glfogsettings[FOG_CURRENT].mode == GL_LINEAR) { clearBits |= GL_COLOR_BUFFER_BIT; } } else if (!(r_portalSky->integer)) // portal skies have been manually turned off, clear bg color { clearBits |= GL_COLOR_BUFFER_BIT; } qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]); } else if (!(r_portalSky->integer)) // portal skies have been manually turned off, clear bg color { clearBits |= GL_COLOR_BUFFER_BIT; qglClearColor(0.5, 0.5, 0.5, 1.0); } } } else // world scene with no portal sky { clearBits |= GL_DEPTH_BUFFER_BIT; // we don't want to clear the buffer when no world model is specified if (backEnd.refdef.rdflags & RDF_NOWORLDMODEL) { clearBits &= ~GL_COLOR_BUFFER_BIT; } else if (r_fastSky->integer || (backEnd.refdef.rdflags & RDF_NOWORLDMODEL)) { clearBits |= GL_COLOR_BUFFER_BIT; if (glfogsettings[FOG_CURRENT].registered) // try to clear fastsky with current fog color { qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]); } else { qglClearColor(0.05f, 0.05f, 0.05f, 1.0f); // JPW NERVE changed per id req was 0.5s } } else // world scene, no portal sky, not fastsky, clear color if fog says to, otherwise, just set the clearcolor { if (glfogsettings[FOG_CURRENT].registered) // try to clear fastsky with current fog color { qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]); if (glfogsettings[FOG_CURRENT].clearscreen) // world fog requests a screen clear (distance fog rather than quake sky) { clearBits |= GL_COLOR_BUFFER_BIT; } } } } // don't clear the color buffer when no world model is specified if (backEnd.refdef.rdflags & RDF_NOWORLDMODEL) { clearBits &= ~GL_COLOR_BUFFER_BIT; } if (clearBits) { qglClear(clearBits); } if ((backEnd.refdef.rdflags & RDF_HYPERSPACE)) { RB_Hyperspace(); return; } else { backEnd.isHyperspace = qfalse; } glState.faceCulling = -1; // force face culling to set next time // we will only draw a sun if there was sky rendered in this view backEnd.skyRenderedThisView = qfalse; // clip to the plane of the portal if (backEnd.viewParms.isPortal) { float plane[4]; double plane2[4]; // keep this, glew expects double plane[0] = backEnd.viewParms.portalPlane.normal[0]; plane[1] = backEnd.viewParms.portalPlane.normal[1]; plane[2] = backEnd.viewParms.portalPlane.normal[2]; plane[3] = backEnd.viewParms.portalPlane.dist; plane2[0] = DotProduct(backEnd.viewParms.orientation.axis[0], plane); plane2[1] = DotProduct(backEnd.viewParms.orientation.axis[1], plane); plane2[2] = DotProduct(backEnd.viewParms.orientation.axis[2], plane); plane2[3] = DotProduct(plane, backEnd.viewParms.orientation.origin) - plane[3]; qglLoadMatrixf(s_flipMatrix); qglClipPlane(GL_CLIP_PLANE0, plane2); qglEnable(GL_CLIP_PLANE0); } else { qglDisable(GL_CLIP_PLANE0); } }
/* ================= RB_BeginDrawingView Any mirrored or portaled views have already been drawn, so prepare to actually render the visible surfaces for this view ================= */ void RB_BeginDrawingView (void) { int clearBits = 0; // sync with gl if needed if ( r_finish->integer == 1 && !glState.finishCalled ) { qglFinish (); glState.finishCalled = qtrue; } if ( r_finish->integer == 0 ) { glState.finishCalled = qtrue; } // we will need to change the projection matrix before drawing // 2D images again backEnd.projection2D = qfalse; if (glRefConfig.framebufferObject) { // FIXME: HUGE HACK: render to the screen fbo if we've already postprocessed the frame and aren't drawing more world // drawing more world check is in case of double renders, such as skyportals if (backEnd.viewParms.targetFbo == NULL) { if (!tr.renderFbo || (backEnd.framePostProcessed && (backEnd.refdef.rdflags & RDF_NOWORLDMODEL))) { FBO_Bind(tr.screenScratchFbo); } else { FBO_Bind(tr.renderFbo); } } else { FBO_Bind(backEnd.viewParms.targetFbo); } } // // set the modelview matrix for the viewer // SetViewportAndScissor(); // ensures that depth writes are enabled for the depth clear GL_State( GLS_DEFAULT ); // clear relevant buffers clearBits = GL_DEPTH_BUFFER_BIT; if ( r_measureOverdraw->integer || r_shadows->integer == 2 ) { clearBits |= GL_STENCIL_BUFFER_BIT; } if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) ) { clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used #ifdef _DEBUG qglClearColor( 0.8f, 0.7f, 0.4f, 1.0f ); // FIXME: get color of sky #else qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f ); // FIXME: get color of sky #endif } // clear to white for shadow maps if (backEnd.viewParms.flags & VPF_SHADOWMAP) { clearBits |= GL_COLOR_BUFFER_BIT; qglClearColor( 1.0f, 1.0f, 1.0f, 1.0f ); } qglClear( clearBits ); if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) ) { RB_Hyperspace(); return; } else { backEnd.isHyperspace = qfalse; } glState.faceCulling = -1; // force face culling to set next time // we will only draw a sun if there was sky rendered in this view backEnd.skyRenderedThisView = qfalse; // clip to the plane of the portal if ( backEnd.viewParms.isPortal ) { #if 0 float plane[4]; double plane2[4]; plane[0] = backEnd.viewParms.portalPlane.normal[0]; plane[1] = backEnd.viewParms.portalPlane.normal[1]; plane[2] = backEnd.viewParms.portalPlane.normal[2]; plane[3] = backEnd.viewParms.portalPlane.dist; plane2[0] = DotProduct (backEnd.viewParms.or.axis[0], plane); plane2[1] = DotProduct (backEnd.viewParms.or.axis[1], plane); plane2[2] = DotProduct (backEnd.viewParms.or.axis[2], plane); plane2[3] = DotProduct (plane, backEnd.viewParms.or.origin) - plane[3]; #endif GL_SetModelviewMatrix( s_flipMatrix ); } }
static void ProjectDlightTexture( void ) { int l; vec3_t origin; float scale; float radius; int deformGen; vec5_t deformParams; if ( !backEnd.refdef.num_dlights ) { return; } ComputeDeformValues(&deformGen, deformParams); for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) { dlight_t *dl; shaderProgram_t *sp; vec4_t vector; if ( !( tess.dlightBits & ( 1 << l ) ) ) { continue; // this surface definately doesn't have any of this light } dl = &backEnd.refdef.dlights[l]; VectorCopy( dl->transformed, origin ); radius = dl->radius; scale = 1.0f / radius; sp = &tr.dlightShader[deformGen == DGEN_NONE ? 0 : 1]; backEnd.pc.c_dlightDraws++; GLSL_BindProgram(sp); GLSL_SetUniformMat4(sp, UNIFORM_MODELVIEWPROJECTIONMATRIX, glState.modelviewProjection); GLSL_SetUniformFloat(sp, UNIFORM_VERTEXLERP, glState.vertexAttribsInterpolation); GLSL_SetUniformInt(sp, UNIFORM_DEFORMGEN, deformGen); if (deformGen != DGEN_NONE) { GLSL_SetUniformFloat5(sp, UNIFORM_DEFORMPARAMS, deformParams); GLSL_SetUniformFloat(sp, UNIFORM_TIME, tess.shaderTime); } vector[0] = dl->color[0]; vector[1] = dl->color[1]; vector[2] = dl->color[2]; vector[3] = 1.0f; GLSL_SetUniformVec4(sp, UNIFORM_COLOR, vector); vector[0] = origin[0]; vector[1] = origin[1]; vector[2] = origin[2]; vector[3] = scale; GLSL_SetUniformVec4(sp, UNIFORM_DLIGHTINFO, vector); GL_BindToTMU( tr.dlightImage, TB_COLORMAP ); // include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light // where they aren't rendered if ( dl->additive ) { GL_State( GLS_ATEST_GT_0 | GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } else { GL_State( GLS_ATEST_GT_0 | GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } if (tess.multiDrawPrimitives) { shaderCommands_t *input = &tess; R_DrawMultiElementsVao(input->multiDrawPrimitives, input->multiDrawMinIndex, input->multiDrawMaxIndex, input->multiDrawNumIndexes, input->multiDrawFirstIndex); } else { R_DrawElementsVao(tess.numIndexes, tess.firstIndex, tess.minIndex, tess.maxIndex); } backEnd.pc.c_totalIndexes += tess.numIndexes; backEnd.pc.c_dlightIndexes += tess.numIndexes; backEnd.pc.c_dlightVertexes += tess.numVertexes; } }
/* ================= RB_ShadowTessEnd triangleFromEdge[ v1 ][ v2 ] set triangle from edge( v1, v2, tri ) if ( facing[ triangleFromEdge[ v1 ][ v2 ] ] && !facing[ triangleFromEdge[ v2 ][ v1 ] ) { } ================= */ void RB_ShadowTessEnd(void) { int i; int numTris; vec3_t lightDir; // we can only do this if we have enough space in the vertex buffers if (tess.numVertexes >= tess.maxShaderVerts / 2) { return; } if (glConfig.stencilBits < 4) { return; } VectorCopy(backEnd.currentEntity->lightDir, lightDir); // project vertexes away from light direction for (i = 0 ; i < tess.numVertexes ; i++) { VectorMA(tess.xyz[i].v, -512, lightDir, tess.xyz[i + tess.numVertexes].v); } // decide which triangles face the light memset(numEdgeDefs, 0, 4 * tess.numVertexes); numTris = tess.numIndexes / 3; { int i1, i2, i3; vec3_t d1, d2, normal; float *v1, *v2, *v3; float d; for (i = 0 ; i < numTris ; i++) { i1 = tess.indexes[i * 3 + 0]; i2 = tess.indexes[i * 3 + 1]; i3 = tess.indexes[i * 3 + 2]; v1 = tess.xyz[i1].v; v2 = tess.xyz[i2].v; v3 = tess.xyz[i3].v; VectorSubtract(v2, v1, d1); VectorSubtract(v3, v1, d2); CrossProduct(d1, d2, normal); d = DotProduct(normal, lightDir); if (d > 0) { facing[i] = 1; } else { facing[i] = 0; } // create the edges R_AddEdgeDef(i1, i2, facing[i]); R_AddEdgeDef(i2, i3, facing[i]); R_AddEdgeDef(i3, i1, facing[i]); } } // draw the silhouette edges GL_Bind(tr.whiteImage); qglEnable(GL_CULL_FACE); GL_State(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO); qglColor3f(0.2f, 0.2f, 0.2f); // don't write to the color buffer qglColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); qglEnable(GL_STENCIL_TEST); qglStencilFunc(GL_ALWAYS, 1, 255); qglVertexPointer(3, GL_FLOAT, 16, tess.xyz); GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY); GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY); if (text) { qglDisableClientState(GL_TEXTURE_COORD_ARRAY); } if (glcol) { qglDisableClientState(GL_COLOR_ARRAY); } // mirrors have the culling order reversed if (backEnd.viewParms.isMirror) { qglCullFace(GL_FRONT); qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR); R_RenderShadowEdges(); qglCullFace(GL_BACK); qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR); qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes); } else { qglCullFace(GL_BACK); qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR); R_RenderShadowEdges(); qglCullFace(GL_FRONT); qglStencilOp(GL_KEEP, GL_KEEP, GL_DECR); qglDrawElements(GL_TRIANGLES, idx, GL_UNSIGNED_SHORT, indexes); } if (text) { qglEnableClientState(GL_TEXTURE_COORD_ARRAY); } if (glcol) { qglEnableClientState(GL_COLOR_ARRAY); } // reenable writing to the color buffer qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); }
static void ProjectPshadowVBOGLSL( void ) { int l; vec3_t origin; float radius; int deformGen; vec5_t deformParams; shaderCommands_t *input = &tess; if ( !backEnd.refdef.num_pshadows ) { return; } ComputeDeformValues(&deformGen, deformParams); for ( l = 0 ; l < backEnd.refdef.num_pshadows ; l++ ) { pshadow_t *ps; shaderProgram_t *sp; vec4_t vector; if ( !( tess.pshadowBits & ( 1 << l ) ) ) { continue; // this surface definately doesn't have any of this shadow } ps = &backEnd.refdef.pshadows[l]; VectorCopy( ps->lightOrigin, origin ); radius = ps->lightRadius; sp = &tr.pshadowShader; GLSL_BindProgram(sp); GLSL_SetUniformMat4(sp, UNIFORM_MODELVIEWPROJECTIONMATRIX, glState.modelviewProjection); VectorCopy(origin, vector); vector[3] = 1.0f; GLSL_SetUniformVec4(sp, UNIFORM_LIGHTORIGIN, vector); VectorScale(ps->lightViewAxis[0], 1.0f / ps->viewRadius, vector); GLSL_SetUniformVec3(sp, UNIFORM_LIGHTFORWARD, vector); VectorScale(ps->lightViewAxis[1], 1.0f / ps->viewRadius, vector); GLSL_SetUniformVec3(sp, UNIFORM_LIGHTRIGHT, vector); VectorScale(ps->lightViewAxis[2], 1.0f / ps->viewRadius, vector); GLSL_SetUniformVec3(sp, UNIFORM_LIGHTUP, vector); GLSL_SetUniformFloat(sp, UNIFORM_LIGHTRADIUS, radius); // include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light // where they aren't rendered GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_DEPTHFUNC_EQUAL ); GL_BindToTMU( tr.pshadowMaps[l], TB_DIFFUSEMAP ); // // draw // if (input->multiDrawPrimitives) { R_DrawMultiElementsVao(input->multiDrawPrimitives, input->multiDrawMinIndex, input->multiDrawMaxIndex, input->multiDrawNumIndexes, input->multiDrawFirstIndex); } else { R_DrawElementsVao(input->numIndexes, input->firstIndex, input->minIndex, input->maxIndex); } backEnd.pc.c_totalIndexes += tess.numIndexes; //backEnd.pc.c_dlightIndexes += tess.numIndexes; } }
static void ProjectDlightTexture_scalar( void ) { int i, l; vec3_t origin; float *texCoords; byte *colors; byte clipBits[SHADER_MAX_VERTEXES]; float texCoordsArray[SHADER_MAX_VERTEXES][2]; byte colorArray[SHADER_MAX_VERTEXES][4]; unsigned hitIndexes[SHADER_MAX_INDEXES]; int numIndexes; float scale; float radius; vec3_t floatColor; float modulate = 0.0f; if ( !backEnd.refdef.num_dlights ) { return; } for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) { dlight_t *dl; if ( !( tess.dlightBits & ( 1 << l ) ) ) { continue; // this surface definately doesn't have any of this light } texCoords = texCoordsArray[0]; colors = colorArray[0]; dl = &backEnd.refdef.dlights[l]; VectorCopy( dl->transformed, origin ); radius = dl->radius; scale = 1.0f / radius; if(r_greyscale->integer) { float luminance; luminance = LUMA(dl->color[0], dl->color[1], dl->color[2]) * 255.0f; floatColor[0] = floatColor[1] = floatColor[2] = luminance; } else if(r_greyscale->value) { float luminance; luminance = LUMA(dl->color[0], dl->color[1], dl->color[2]) * 255.0f; floatColor[0] = LERP(dl->color[0] * 255.0f, luminance, r_greyscale->value); floatColor[1] = LERP(dl->color[1] * 255.0f, luminance, r_greyscale->value); floatColor[2] = LERP(dl->color[2] * 255.0f, luminance, r_greyscale->value); } else { floatColor[0] = dl->color[0] * 255.0f; floatColor[1] = dl->color[1] * 255.0f; floatColor[2] = dl->color[2] * 255.0f; } for ( i = 0 ; i < tess.numVertexes ; i++, texCoords += 2, colors += 4 ) { int clip = 0; vec3_t dist; VectorSubtract( origin, tess.xyz[i], dist ); backEnd.pc.c_dlightVertexes++; texCoords[0] = 0.5f + dist[0] * scale; texCoords[1] = 0.5f + dist[1] * scale; if( !r_dlightBacks->integer && // dist . tess.normal[i] ( dist[0] * tess.normal[i][0] + dist[1] * tess.normal[i][1] + dist[2] * tess.normal[i][2] ) < 0.0f ) { clip = 63; } else { if ( texCoords[0] < 0.0f ) { clip |= 1; } else if ( texCoords[0] > 1.0f ) { clip |= 2; } if ( texCoords[1] < 0.0f ) { clip |= 4; } else if ( texCoords[1] > 1.0f ) { clip |= 8; } texCoords[0] = texCoords[0]; texCoords[1] = texCoords[1]; // modulate the strength based on the height and color if ( dist[2] > radius ) { clip |= 16; modulate = 0.0f; } else if ( dist[2] < -radius ) { clip |= 32; modulate = 0.0f; } else { dist[2] = Q_fabs(dist[2]); if ( dist[2] < radius * 0.5f ) { modulate = 1.0f; } else { modulate = 2.0f * (radius - dist[2]) * scale; } } } clipBits[i] = clip; colors[0] = ri.ftol(floatColor[0] * modulate); colors[1] = ri.ftol(floatColor[1] * modulate); colors[2] = ri.ftol(floatColor[2] * modulate); colors[3] = (r_dynamicLight->integer > 1) ? (128 * modulate) : 255; } // build a list of triangles that need light numIndexes = 0; for ( i = 0 ; i < tess.numIndexes ; i += 3 ) { int a, b, c; a = tess.indexes[i]; b = tess.indexes[i+1]; c = tess.indexes[i+2]; if ( clipBits[a] & clipBits[b] & clipBits[c] ) { continue; // not lighted } hitIndexes[numIndexes] = a; hitIndexes[numIndexes+1] = b; hitIndexes[numIndexes+2] = c; numIndexes += 3; } if ( !numIndexes ) { continue; } qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] ); qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray ); GL_Bind( tr.dlightImage ); // include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light // where they aren't rendered if ( dl->additive ) { switch ( r_dynamicLight->integer ) { case 2: //add GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); break; case 3: // filter GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO | GLS_DEPTHFUNC_EQUAL ); break; case 4: // blend GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_DEPTHFUNC_EQUAL ); break; case 5: // additive blend... the f**k? GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_DEPTHFUNC_EQUAL ); break; case 6: GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); break; case 7: GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_SRC_ALPHA | GLS_DEPTHFUNC_EQUAL ); break; default: GL_State( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_COLOR | GLS_DEPTHFUNC_EQUAL ); break; } } else { GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } R_DrawElements( numIndexes, hitIndexes ); backEnd.pc.c_totalIndexes += numIndexes; backEnd.pc.c_dlightIndexes += numIndexes; } }
/* ** RB_StageIteratorVertexLitTexture */ void RB_StageIteratorVertexLitTexture( void ) { shaderCommands_t *input; shader_t *shader; input = &tess; shader = input->shader; // // compute colors // RB_CalcDiffuseColor( ( unsigned char * ) tess.svars.colors ); // // log this call // if ( r_logFile->integer ) { // don't just call LogComment, or we will get // a call to va() every frame! GLimp_LogComment( va("--- RB_StageIteratorVertexLitTexturedUnfogged( %s ) ---\n", tess.shader->name) ); } // // set face culling appropriately // GL_Cull( input->shader->cullType ); // // set arrays and lock // qglEnableClientState( GL_COLOR_ARRAY); qglEnableClientState( GL_TEXTURE_COORD_ARRAY); qglEnableClientState( GL_NORMAL_ARRAY); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, tess.svars.colors ); qglTexCoordPointer( 2, GL_FLOAT, 16, tess.texCoords[0][0] ); qglVertexPointer (3, GL_FLOAT, 16, input->xyz); qglNormalPointer (GL_FLOAT, 16, input->normal); if ( qglLockArraysEXT ) { qglLockArraysEXT(0, input->numVertexes); GLimp_LogComment( "glLockArraysEXT\n" ); } // // call special shade routine // R_BindAnimatedImage( &tess.xstages[0]->bundle[0] ); GL_State( tess.xstages[0]->stateBits ); R_DrawElements( input->numIndexes, input->indexes ); // // now do any dynamic lighting needed // if ( tess.dlightBits && tess.shader->sort <= SS_OPAQUE ) { ProjectDlightTexture(); } // // now do fog // if ( tess.fogNum && tess.shader->fogPass ) { RB_FogPass(); } // // unlock arrays // if (qglUnlockArraysEXT) { qglUnlockArraysEXT(); GLimp_LogComment( "glUnlockArraysEXT\n" ); } }
static void RB_IterateStagesGeneric( shaderCommands_t *input ) { int stage; bool UseGLFog = false; bool FogColorChange = false; fog_t *fog = NULL; if (tess.fogNum && tess.shader->fogPass && (tess.fogNum == tr.world->globalFog || tess.fogNum == tr.world->numfogs) && r_drawfog->value == 2) { // only gl fog global fog and the "special fog" fog = tr.world->fogs + tess.fogNum; if (tr.rangedFog) { //ranged fog, used for sniper scope float fStart = fog->parms.depthForOpaque; if (tr.rangedFog < 0.0f) { //special designer override fStart = -tr.rangedFog; } else { //the greater tr.rangedFog is, the more fog we will get between the view point and cull distance if ((tr.distanceCull-fStart) < tr.rangedFog) { //assure a minimum range between fog beginning and cutoff distance fStart = tr.distanceCull-tr.rangedFog; if (fStart < 16.0f) { fStart = 16.0f; } } } qglFogi(GL_FOG_MODE, GL_LINEAR); qglFogf(GL_FOG_START, fStart); qglFogf(GL_FOG_END, tr.distanceCull); } else { qglFogi(GL_FOG_MODE, GL_EXP2); qglFogf(GL_FOG_DENSITY, logtestExp2 / fog->parms.depthForOpaque); } if ( g_bRenderGlowingObjects ) { const float fogColor[3] = { 0.0f, 0.0f, 0.0f }; qglFogfv(GL_FOG_COLOR, fogColor ); } else { qglFogfv(GL_FOG_COLOR, fog->parms.color); } qglEnable(GL_FOG); UseGLFog = true; } for ( stage = 0; stage < input->shader->numUnfoggedPasses; stage++ ) { shaderStage_t *pStage = &tess.xstages[stage]; int forceRGBGen = 0; int stateBits = 0; if ( !pStage->active ) { break; } // Reject this stage if it's not a glow stage but we are doing a glow pass. if ( g_bRenderGlowingObjects && !pStage->glow ) { continue; } if ( stage && r_lightmap->integer && !( pStage->bundle[0].isLightmap || pStage->bundle[1].isLightmap || pStage->bundle[0].vertexLightmap ) ) { break; } stateBits = pStage->stateBits; if ( backEnd.currentEntity ) { assert(backEnd.currentEntity->e.renderfx >= 0); if ( backEnd.currentEntity->e.renderfx & RF_DISINTEGRATE1 ) { // we want to be able to rip a hole in the thing being disintegrated, and by doing the depth-testing it avoids some kinds of artefacts, but will probably introduce others? stateBits = GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_DEPTHMASK_TRUE | GLS_ATEST_GE_C0; } if ( backEnd.currentEntity->e.renderfx & RF_RGB_TINT ) {//want to use RGBGen from ent forceRGBGen = CGEN_ENTITY; } } if (pStage->ss && pStage->ss->surfaceSpriteType) { // We check for surfacesprites AFTER drawing everything else continue; } if (UseGLFog) { if (pStage->mGLFogColorOverride) { qglFogfv(GL_FOG_COLOR, GLFogOverrideColors[pStage->mGLFogColorOverride]); FogColorChange = true; } else if (FogColorChange && fog) { FogColorChange = false; qglFogfv(GL_FOG_COLOR, fog->parms.color); } } if (!input->fading) { //this means ignore this, while we do a fade-out ComputeColors( pStage, forceRGBGen ); } ComputeTexCoords( pStage ); if ( !setArraysOnce ) { qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, input->svars.colors ); } // // do multitexture // if ( pStage->bundle[1].image != 0 ) { DrawMultitextured( input, stage ); } else { static bool lStencilled = false; if ( !setArraysOnce ) { qglTexCoordPointer( 2, GL_FLOAT, 0, input->svars.texcoords[0] ); } // // set state // if ( (tess.shader == tr.distortionShader) || (backEnd.currentEntity && (backEnd.currentEntity->e.renderfx & RF_DISTORTION)) ) { //special distortion effect -rww //tr.screenImage should have been set for this specific entity before we got in here. GL_Bind( tr.screenImage ); GL_Cull(CT_TWO_SIDED); } else if ( pStage->bundle[0].vertexLightmap && ( r_vertexLight->integer && !r_uiFullScreen->integer ) && r_lightmap->integer ) { GL_Bind( tr.whiteImage ); } else R_BindAnimatedImage( &pStage->bundle[0] ); if (tess.shader == tr.distortionShader && glConfig.stencilBits >= 4) { //draw it to the stencil buffer! tr_stencilled = true; lStencilled = true; qglEnable(GL_STENCIL_TEST); qglStencilFunc(GL_ALWAYS, 1, 0xFFFFFFFF); qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR); qglColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); //don't depthmask, don't blend.. don't do anything GL_State(0); } else if (backEnd.currentEntity && (backEnd.currentEntity->e.renderfx & RF_FORCE_ENT_ALPHA)) { ForceAlpha((unsigned char *) tess.svars.colors, backEnd.currentEntity->e.shaderRGBA[3]); if (backEnd.currentEntity->e.renderfx & RF_ALPHA_DEPTH) { //depth write, so faces through the model will be stomped over by nearer ones. this works because //we draw RF_FORCE_ENT_ALPHA stuff after everything else, including standard alpha surfs. GL_State(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA | GLS_DEPTHMASK_TRUE); } else { GL_State(GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA); } } else { GL_State( stateBits ); } // // draw // R_DrawElements( input->numIndexes, input->indexes ); if (lStencilled) { //re-enable the color buffer, disable stencil test lStencilled = false; qglDisable(GL_STENCIL_TEST); qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); } } } if (FogColorChange) { qglFogfv(GL_FOG_COLOR, fog->parms.color); } }
/* =================== ProjectDlightTexture Perform dynamic lighting with another rendering pass =================== */ static void ProjectDlightTexture( void ) { int i, l; #if idppc_altivec vec_t origin0, origin1, origin2; float texCoords0, texCoords1; vector float floatColorVec0, floatColorVec1; vector float modulateVec, colorVec, zero; vector short colorShort; vector signed int colorInt; vector unsigned char floatColorVecPerm, modulatePerm, colorChar; vector unsigned char vSel = (vector unsigned char)(0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff); #else vec3_t origin; #endif float *texCoords; byte *colors; byte clipBits[SHADER_MAX_VERTEXES]; MAC_STATIC float texCoordsArray[SHADER_MAX_VERTEXES][2]; byte colorArray[SHADER_MAX_VERTEXES][4]; unsigned hitIndexes[SHADER_MAX_INDEXES]; int numIndexes; float scale; float radius; vec3_t floatColor; float modulate; if ( !backEnd.refdef.num_dlights ) { return; } #if idppc_altivec // There has to be a better way to do this so that floatColor // and/or modulate are already 16-byte aligned. floatColorVecPerm = vec_lvsl(0,(float *)floatColor); modulatePerm = vec_lvsl(0,(float *)&modulate); modulatePerm = (vector unsigned char)vec_splat((vector unsigned int)modulatePerm,0); zero = (vector float)vec_splat_s8(0); #endif for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) { dlight_t *dl; if ( !( tess.dlightBits & ( 1 << l ) ) ) { continue; // this surface definately doesn't have any of this light } texCoords = texCoordsArray[0]; colors = colorArray[0]; dl = &backEnd.refdef.dlights[l]; #if idppc_altivec origin0 = dl->transformed[0]; origin1 = dl->transformed[1]; origin2 = dl->transformed[2]; #else VectorCopy( dl->transformed, origin ); #endif radius = dl->radius; scale = 1.0f / radius; floatColor[0] = dl->color[0] * 255.0f; floatColor[1] = dl->color[1] * 255.0f; floatColor[2] = dl->color[2] * 255.0f; #if idppc_altivec floatColorVec0 = vec_ld(0, floatColor); floatColorVec1 = vec_ld(11, floatColor); floatColorVec0 = vec_perm(floatColorVec0,floatColorVec0,floatColorVecPerm); #endif for ( i = 0 ; i < tess.numVertexes ; i++, texCoords += 2, colors += 4 ) { #if idppc_altivec vec_t dist0, dist1, dist2; #else vec3_t dist; #endif int clip; backEnd.pc.c_dlightVertexes++; #if idppc_altivec //VectorSubtract( origin, tess.xyz[i], dist ); dist0 = origin0 - tess.xyz[i][0]; dist1 = origin1 - tess.xyz[i][1]; dist2 = origin2 - tess.xyz[i][2]; texCoords0 = 0.5f + dist0 * scale; texCoords1 = 0.5f + dist1 * scale; clip = 0; if ( texCoords0 < 0.0f ) { clip |= 1; } else if ( texCoords0 > 1.0f ) { clip |= 2; } if ( texCoords1 < 0.0f ) { clip |= 4; } else if ( texCoords1 > 1.0f ) { clip |= 8; } texCoords[0] = texCoords0; texCoords[1] = texCoords1; // modulate the strength based on the height and color if ( dist2 > radius ) { clip |= 16; modulate = 0.0f; } else if ( dist2 < -radius ) { clip |= 32; modulate = 0.0f; } else { dist2 = Q_fabs(dist2); if ( dist2 < radius * 0.5f ) { modulate = 1.0f; } else { modulate = 2.0f * (radius - dist2) * scale; } } clipBits[i] = clip; modulateVec = vec_ld(0,(float *)&modulate); modulateVec = vec_perm(modulateVec,modulateVec,modulatePerm); colorVec = vec_madd(floatColorVec0,modulateVec,zero); colorInt = vec_cts(colorVec,0); // RGBx colorShort = vec_pack(colorInt,colorInt); // RGBxRGBx colorChar = vec_packsu(colorShort,colorShort); // RGBxRGBxRGBxRGBx colorChar = vec_sel(colorChar,vSel,vSel); // RGBARGBARGBARGBA replace alpha with 255 vec_ste((vector unsigned int)colorChar,0,(unsigned int *)colors); // store color #else VectorSubtract( origin, tess.xyz[i], dist ); texCoords[0] = 0.5f + dist[0] * scale; texCoords[1] = 0.5f + dist[1] * scale; clip = 0; if ( texCoords[0] < 0.0f ) { clip |= 1; } else if ( texCoords[0] > 1.0f ) { clip |= 2; } if ( texCoords[1] < 0.0f ) { clip |= 4; } else if ( texCoords[1] > 1.0f ) { clip |= 8; } // modulate the strength based on the height and color if ( dist[2] > radius ) { clip |= 16; modulate = 0.0f; } else if ( dist[2] < -radius ) { clip |= 32; modulate = 0.0f; } else { dist[2] = Q_fabs(dist[2]); if ( dist[2] < radius * 0.5f ) { modulate = 1.0f; } else { modulate = 2.0f * (radius - dist[2]) * scale; } } clipBits[i] = clip; colors[0] = myftol(floatColor[0] * modulate); colors[1] = myftol(floatColor[1] * modulate); colors[2] = myftol(floatColor[2] * modulate); colors[3] = 255; #endif } // build a list of triangles that need light numIndexes = 0; for ( i = 0 ; i < tess.numIndexes ; i += 3 ) { int a, b, c; a = tess.indexes[i]; b = tess.indexes[i+1]; c = tess.indexes[i+2]; if ( clipBits[a] & clipBits[b] & clipBits[c] ) { continue; // not lighted } hitIndexes[numIndexes] = a; hitIndexes[numIndexes+1] = b; hitIndexes[numIndexes+2] = c; numIndexes += 3; } if ( !numIndexes ) { continue; } qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] ); qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray ); GL_Bind( tr.dlightImage ); // include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light // where they aren't rendered if ( dl->additive ) { GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } else { GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } R_DrawElements( numIndexes, hitIndexes ); backEnd.pc.c_totalIndexes += numIndexes; backEnd.pc.c_dlightIndexes += numIndexes; } }
/* =================== ProjectDlightTexture Perform dynamic lighting with another rendering pass =================== */ static void ProjectDlightTexture2( void ) { int i, l; vec3_t origin; byte clipBits[SHADER_MAX_VERTEXES]; float texCoordsArray[SHADER_MAX_VERTEXES][2]; float oldTexCoordsArray[SHADER_MAX_VERTEXES][2]; float vertCoordsArray[SHADER_MAX_VERTEXES][4]; unsigned int colorArray[SHADER_MAX_VERTEXES]; glIndex_t hitIndexes[SHADER_MAX_INDEXES]; int numIndexes; float radius; int fogging; shaderStage_t *dStage; vec3_t posa; vec3_t posb; vec3_t posc; vec3_t dist; vec3_t e1; vec3_t e2; vec3_t normal; float fac,modulate; vec3_t floatColor; byte colorTemp[4]; int needResetVerts=0; if ( !backEnd.refdef.num_dlights ) { return; } for ( l = 0 ; l < backEnd.refdef.num_dlights ; l++ ) { dlight_t *dl; if ( !( tess.dlightBits & ( 1 << l ) ) ) { continue; // this surface definately doesn't have any of this light } dl = &backEnd.refdef.dlights[l]; VectorCopy( dl->transformed, origin ); radius = dl->radius; int clipall = 63; for ( i = 0 ; i < tess.numVertexes ; i++) { int clip; VectorSubtract( origin, tess.xyz[i], dist ); clip = 0; if ( dist[0] < -radius ) { clip |= 1; } else if ( dist[0] > radius ) { clip |= 2; } if ( dist[1] < -radius ) { clip |= 4; } else if ( dist[1] > radius ) { clip |= 8; } if ( dist[2] < -radius ) { clip |= 16; } else if ( dist[2] > radius ) { clip |= 32; } clipBits[i] = clip; clipall &= clip; } if ( clipall ) { continue; // this surface doesn't have any of this light } floatColor[0] = dl->color[0] * 255.0f; floatColor[1] = dl->color[1] * 255.0f; floatColor[2] = dl->color[2] * 255.0f; // build a list of triangles that need light numIndexes = 0; for ( i = 0 ; i < tess.numIndexes ; i += 3 ) { int a, b, c; a = tess.indexes[i]; b = tess.indexes[i+1]; c = tess.indexes[i+2]; if ( clipBits[a] & clipBits[b] & clipBits[c] ) { continue; // not lighted } // copy the vertex positions VectorCopy(tess.xyz[a],posa); VectorCopy(tess.xyz[b],posb); VectorCopy(tess.xyz[c],posc); VectorSubtract( posa, posb,e1); VectorSubtract( posc, posb,e2); CrossProduct(e1,e2,normal); // rjr - removed for hacking if ( (!r_dlightBacks->integer && DotProduct(normal,origin)-DotProduct(normal,posa) <= 0.0f) || // backface if ( DotProduct(normal,origin)-DotProduct(normal,posa) <= 0.0f || // backface DotProduct(normal,normal) < 1E-8f) // junk triangle { continue; } VectorNormalize(normal); fac=DotProduct(normal,origin)-DotProduct(normal,posa); if (fac >= radius) // out of range { continue; } modulate = 1.0f-((fac*fac) / (radius*radius)); fac = 0.5f/sqrtf(radius*radius - fac*fac); // save the verts VectorCopy(posa,vertCoordsArray[numIndexes]); VectorCopy(posb,vertCoordsArray[numIndexes+1]); VectorCopy(posc,vertCoordsArray[numIndexes+2]); // now we need e1 and e2 to be an orthonormal basis if (DotProduct(e1,e1) > DotProduct(e2,e2)) { VectorNormalize(e1); CrossProduct(e1,normal,e2); } else { VectorNormalize(e2); CrossProduct(normal,e2,e1); } VectorScale(e1,fac,e1); VectorScale(e2,fac,e2); VectorSubtract( posa, origin,dist); texCoordsArray[numIndexes][0]=DotProduct(dist,e1)+0.5f; texCoordsArray[numIndexes][1]=DotProduct(dist,e2)+0.5f; VectorSubtract( posb, origin,dist); texCoordsArray[numIndexes+1][0]=DotProduct(dist,e1)+0.5f; texCoordsArray[numIndexes+1][1]=DotProduct(dist,e2)+0.5f; VectorSubtract( posc, origin,dist); texCoordsArray[numIndexes+2][0]=DotProduct(dist,e1)+0.5f; texCoordsArray[numIndexes+2][1]=DotProduct(dist,e2)+0.5f; if ((texCoordsArray[numIndexes][0] < 0.0f && texCoordsArray[numIndexes+1][0] < 0.0f && texCoordsArray[numIndexes+2][0] < 0.0f) || (texCoordsArray[numIndexes][0] > 1.0f && texCoordsArray[numIndexes+1][0] > 1.0f && texCoordsArray[numIndexes+2][0] > 1.0f) || (texCoordsArray[numIndexes][1] < 0.0f && texCoordsArray[numIndexes+1][1] < 0.0f && texCoordsArray[numIndexes+2][1] < 0.0f) || (texCoordsArray[numIndexes][1] > 1.0f && texCoordsArray[numIndexes+1][1] > 1.0f && texCoordsArray[numIndexes+2][1] > 1.0f) ) { continue; // didn't end up hitting this tri } /* old code, get from the svars = wrong oldTexCoordsArray[numIndexes][0]=tess.svars.texcoords[0][a][0]; oldTexCoordsArray[numIndexes][1]=tess.svars.texcoords[0][a][1]; oldTexCoordsArray[numIndexes+1][0]=tess.svars.texcoords[0][b][0]; oldTexCoordsArray[numIndexes+1][1]=tess.svars.texcoords[0][b][1]; oldTexCoordsArray[numIndexes+2][0]=tess.svars.texcoords[0][c][0]; oldTexCoordsArray[numIndexes+2][1]=tess.svars.texcoords[0][c][1]; */ oldTexCoordsArray[numIndexes][0]=tess.texCoords[a][0][0]; oldTexCoordsArray[numIndexes][1]=tess.texCoords[a][0][1]; oldTexCoordsArray[numIndexes+1][0]=tess.texCoords[b][0][0]; oldTexCoordsArray[numIndexes+1][1]=tess.texCoords[b][0][1]; oldTexCoordsArray[numIndexes+2][0]=tess.texCoords[c][0][0]; oldTexCoordsArray[numIndexes+2][1]=tess.texCoords[c][0][1]; colorTemp[0] = Q_ftol(floatColor[0] * modulate); colorTemp[1] = Q_ftol(floatColor[1] * modulate); colorTemp[2] = Q_ftol(floatColor[2] * modulate); colorTemp[3] = 255; byteAlias_t *ba = (byteAlias_t *)&colorTemp; colorArray[numIndexes + 0] = ba->ui; colorArray[numIndexes + 1] = ba->ui; colorArray[numIndexes + 2] = ba->ui; hitIndexes[numIndexes] = numIndexes; hitIndexes[numIndexes+1] = numIndexes+1; hitIndexes[numIndexes+2] = numIndexes+2; numIndexes += 3; if (numIndexes>=SHADER_MAX_VERTEXES-3) { break; // we are out of space, so we are done :) } } if ( !numIndexes ) { continue; } //don't have fog enabled when we redraw with alpha test, or it will double over //and screw the tri up -rww if (r_drawfog->value == 2 && tr.world && (tess.fogNum == tr.world->globalFog || tess.fogNum == tr.world->numfogs)) { fogging = qglIsEnabled(GL_FOG); if (fogging) { qglDisable(GL_FOG); } } else { fogging = 0; } dStage = NULL; if (tess.shader && qglActiveTextureARB) { int i = 0; while (i < tess.shader->numUnfoggedPasses) { const int blendBits = (GLS_SRCBLEND_BITS+GLS_DSTBLEND_BITS); if (((tess.shader->stages[i].bundle[0].image && !tess.shader->stages[i].bundle[0].isLightmap && !tess.shader->stages[i].bundle[0].numTexMods && tess.shader->stages[i].bundle[0].tcGen != TCGEN_ENVIRONMENT_MAPPED && tess.shader->stages[i].bundle[0].tcGen != TCGEN_FOG) || (tess.shader->stages[i].bundle[1].image && !tess.shader->stages[i].bundle[1].isLightmap && !tess.shader->stages[i].bundle[1].numTexMods && tess.shader->stages[i].bundle[1].tcGen != TCGEN_ENVIRONMENT_MAPPED && tess.shader->stages[i].bundle[1].tcGen != TCGEN_FOG)) && (tess.shader->stages[i].stateBits & blendBits) == 0 ) { //only use non-lightmap opaque stages dStage = &tess.shader->stages[i]; break; } i++; } } if (!needResetVerts) { needResetVerts=1; if (qglUnlockArraysEXT) { qglUnlockArraysEXT(); GLimp_LogComment( "glUnlockArraysEXT\n" ); } } qglVertexPointer (3, GL_FLOAT, 16, vertCoordsArray); // padded for SIMD if (dStage) { GL_SelectTexture( 0 ); GL_State(0); qglTexCoordPointer( 2, GL_FLOAT, 0, oldTexCoordsArray[0] ); if (dStage->bundle[0].image && !dStage->bundle[0].isLightmap && !dStage->bundle[0].numTexMods && dStage->bundle[0].tcGen != TCGEN_ENVIRONMENT_MAPPED && dStage->bundle[0].tcGen != TCGEN_FOG) { R_BindAnimatedImage( &dStage->bundle[0] ); } else { R_BindAnimatedImage( &dStage->bundle[1] ); } GL_SelectTexture( 1 ); qglEnable( GL_TEXTURE_2D ); qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] ); qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray ); GL_Bind( tr.dlightImage ); GL_TexEnv( GL_MODULATE ); GL_State(GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL);// | GLS_ATEST_GT_0); R_DrawElements( numIndexes, hitIndexes ); qglDisable( GL_TEXTURE_2D ); GL_SelectTexture(0); } else { qglEnableClientState( GL_TEXTURE_COORD_ARRAY ); qglTexCoordPointer( 2, GL_FLOAT, 0, texCoordsArray[0] ); qglEnableClientState( GL_COLOR_ARRAY ); qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, colorArray ); GL_Bind( tr.dlightImage ); // include GLS_DEPTHFUNC_EQUAL so alpha tested surfaces don't add light // where they aren't rendered if ( dl->additive ) { GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } else { GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ONE | GLS_DEPTHFUNC_EQUAL ); } R_DrawElements( numIndexes, hitIndexes ); } if (fogging) { qglEnable(GL_FOG); } backEnd.pc.c_totalIndexes += numIndexes; backEnd.pc.c_dlightIndexes += numIndexes; } if (needResetVerts) { qglVertexPointer (3, GL_FLOAT, 16, tess.xyz); // padded for SIMD if (qglLockArraysEXT) { qglLockArraysEXT(0, tess.numVertexes); GLimp_LogComment( "glLockArraysEXT\n" ); } } }
/* ===================== RB_BlendLight Dual texture together the falloff and projection texture with a blend mode to the framebuffer, instead of interacting with the surface texture ===================== */ static void RB_BlendLight(const drawSurf_t *drawSurfs, const drawSurf_t *drawSurfs2) { const idMaterial *lightShader; const shaderStage_t *stage; int i; const float *regs; if (!drawSurfs) { return; } if (r_skipBlendLights.GetBool()) { return; } RB_LogComment("---------- RB_BlendLight ----------\n"); lightShader = backEnd.vLight->lightShader; regs = backEnd.vLight->shaderRegisters; // texture 1 will get the falloff texture GL_SelectTexture(1); qglDisableClientState(GL_TEXTURE_COORD_ARRAY); qglEnable(GL_TEXTURE_GEN_S); qglTexCoord2f(0, 0.5); backEnd.vLight->falloffImage->Bind(); // texture 0 will get the projected texture GL_SelectTexture(0); qglDisableClientState(GL_TEXTURE_COORD_ARRAY); qglEnable(GL_TEXTURE_GEN_S); qglEnable(GL_TEXTURE_GEN_T); qglEnable(GL_TEXTURE_GEN_Q); for (i = 0 ; i < lightShader->GetNumStages() ; i++) { stage = lightShader->GetStage(i); if (!regs[ stage->conditionRegister ]) { continue; } GL_State(GLS_DEPTHMASK | stage->drawStateBits | GLS_DEPTHFUNC_EQUAL); GL_SelectTexture(0); stage->texture.image->Bind(); if (stage->texture.hasMatrix) { RB_LoadShaderTextureMatrix(regs, &stage->texture); } // get the modulate values from the light, including alpha, unlike normal lights backEnd.lightColor[0] = regs[ stage->color.registers[0] ]; backEnd.lightColor[1] = regs[ stage->color.registers[1] ]; backEnd.lightColor[2] = regs[ stage->color.registers[2] ]; backEnd.lightColor[3] = regs[ stage->color.registers[3] ]; qglColor4fv(backEnd.lightColor); RB_RenderDrawSurfChainWithFunction(drawSurfs, RB_T_BlendLight); RB_RenderDrawSurfChainWithFunction(drawSurfs2, RB_T_BlendLight); if (stage->texture.hasMatrix) { GL_SelectTexture(0); qglMatrixMode(GL_TEXTURE); qglLoadIdentity(); qglMatrixMode(GL_MODELVIEW); } } GL_SelectTexture(1); qglDisable(GL_TEXTURE_GEN_S); globalImages->BindNull(); GL_SelectTexture(0); qglDisable(GL_TEXTURE_GEN_S); qglDisable(GL_TEXTURE_GEN_T); qglDisable(GL_TEXTURE_GEN_Q); }
/* ================= RB_BeginDrawingView Any mirrored or portaled views have already been drawn, so prepare to actually render the visible surfaces for this view ================= */ void RB_BeginDrawingView (void) { int clearBits = 0; // sync with gl if needed if ( r_finish->integer == 1 && !glState.finishCalled ) { qglFinish (); glState.finishCalled = qtrue; } if ( r_finish->integer == 0 ) { glState.finishCalled = qtrue; } // we will need to change the projection matrix before drawing // 2D images again backEnd.projection2D = qfalse; if (glRefConfig.framebufferObject) { // FIXME: HUGE HACK: render to the screen fbo if we've already postprocessed the frame and aren't drawing more world // drawing more world check is in case of double renders, such as skyportals if (backEnd.viewParms.targetFbo == NULL) { if (!tr.renderFbo || (backEnd.framePostProcessed && (backEnd.refdef.rdflags & RDF_NOWORLDMODEL))) { FBO_Bind(NULL); } else { FBO_Bind(tr.renderFbo); } } else { FBO_Bind(backEnd.viewParms.targetFbo); // FIXME: hack for cubemap testing if (tr.renderCubeFbo && backEnd.viewParms.targetFbo == tr.renderCubeFbo) { cubemap_t *cubemap = &tr.cubemaps[backEnd.viewParms.targetFboCubemapIndex]; //qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X + backEnd.viewParms.targetFboLayer, backEnd.viewParms.targetFbo->colorImage[0]->texnum, 0); qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X + backEnd.viewParms.targetFboLayer, cubemap->image->texnum, 0); } } } // // set the modelview matrix for the viewer // SetViewportAndScissor(); // ensures that depth writes are enabled for the depth clear GL_State( GLS_DEFAULT ); // clear relevant buffers clearBits = GL_DEPTH_BUFFER_BIT; if ( r_measureOverdraw->integer || r_shadows->integer == 2 ) { clearBits |= GL_STENCIL_BUFFER_BIT; } if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) ) { clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used } // clear to black for cube maps if (tr.renderCubeFbo && backEnd.viewParms.targetFbo == tr.renderCubeFbo) { clearBits |= GL_COLOR_BUFFER_BIT; } qglClear( clearBits ); if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) ) { RB_Hyperspace(); return; } else { backEnd.isHyperspace = qfalse; } // we will only draw a sun if there was sky rendered in this view backEnd.skyRenderedThisView = qfalse; // clip to the plane of the portal if ( backEnd.viewParms.isPortal ) { #if 0 float plane[4]; GLdouble plane2[4]; plane[0] = backEnd.viewParms.portalPlane.normal[0]; plane[1] = backEnd.viewParms.portalPlane.normal[1]; plane[2] = backEnd.viewParms.portalPlane.normal[2]; plane[3] = backEnd.viewParms.portalPlane.dist; plane2[0] = DotProduct (backEnd.viewParms.or.axis[0], plane); plane2[1] = DotProduct (backEnd.viewParms.or.axis[1], plane); plane2[2] = DotProduct (backEnd.viewParms.or.axis[2], plane); plane2[3] = DotProduct (plane, backEnd.viewParms.or.origin) - plane[3]; #endif GL_SetModelviewMatrix( s_flipMatrix ); } }