void TerrainMacroMapFeatHLSL::processPix( Vector<ShaderComponent*> &componentList, const MaterialFeatureData &fd ) { const S32 detailIndex = getProcessIndex(); Var *inTex = getVertTexCoord( "texCoord" ); MultiLine *meta = new MultiLine; // We need the negative tangent space view vector // as in parallax mapping we step towards the camera. Var *negViewTS = (Var*)LangElement::find( "negViewTS" ); if ( !negViewTS && fd.features.hasFeature( MFT_TerrainParallaxMap ) ) { Var *inNegViewTS = (Var*)LangElement::find( "outNegViewTS" ); if ( !inNegViewTS ) { ShaderConnector *connectComp = dynamic_cast<ShaderConnector *>( componentList[C_CONNECTOR] ); inNegViewTS = connectComp->getElement( RT_TEXCOORD ); inNegViewTS->setName( "outNegViewTS" ); inNegViewTS->setStructName( "IN" ); inNegViewTS->setType( "float3" ); } negViewTS = new Var( "negViewTS", "float3" ); meta->addStatement( new GenOp( " @ = normalize( @ );\r\n", new DecOp( negViewTS ), inNegViewTS ) ); } // Get the layer samples. Var *layerSample = (Var*)LangElement::find( "layerSample" ); if ( !layerSample ) { layerSample = new Var; layerSample->setType( "float4" ); layerSample->setName( "layerSample" ); // Get the layer texture var Var *layerTex = new Var; layerTex->setType( "sampler2D" ); layerTex->setName( "macrolayerTex" ); layerTex->uniform = true; layerTex->sampler = true; layerTex->constNum = Var::getTexUnitNum(); // Read the layer texture to get the samples. if (mIsDirect3D11) { layerTex->setType("SamplerState"); Var *layerTexObj = new Var; layerTexObj->setType("Texture2D"); layerTexObj->setName("macroLayerTexObj"); layerTexObj->uniform = true; layerTexObj->texture = true; layerTexObj->constNum = layerTex->constNum; meta->addStatement(new GenOp(" @ = round( @.Sample( @, @.xy ) * 255.0f );\r\n", new DecOp(layerSample), layerTexObj, layerTex, inTex)); } else meta->addStatement(new GenOp(" @ = round( tex2D( @, @.xy ) * 255.0f );\r\n", new DecOp(layerSample), layerTex, inTex)); } Var *layerSize = (Var*)LangElement::find( "layerSize" ); if ( !layerSize ) { layerSize = new Var; layerSize->setType( "float" ); layerSize->setName( "layerSize" ); layerSize->uniform = true; layerSize->constSortPos = cspPass; } // Grab the incoming detail coord. Var *inDet = _getInMacroCoord( componentList ); // Get the detail id. Var *detailInfo = _getMacroIdStrengthParallax(); // Create the detail blend var. Var *detailBlend = new Var; detailBlend->setType( "float" ); detailBlend->setName( String::ToString( "macroBlend%d", detailIndex ) ); // Calculate the blend for this detail texture. meta->addStatement( new GenOp( " @ = calcBlend( @.x, @.xy, @, @ );\r\n", new DecOp( detailBlend ), detailInfo, inTex, layerSize, layerSample ) ); // Get a var and accumulate the blend amount. Var *blendTotal = (Var*)LangElement::find( "blendTotal" ); if ( !blendTotal ) { blendTotal = new Var; blendTotal->setName( "blendTotal" ); blendTotal->setType( "float" ); meta->addStatement( new GenOp( " @ = 0;\r\n", new DecOp( blendTotal ) ) ); } // Add to the blend total. meta->addStatement(new GenOp(" @ = max( @, @ );\r\n", blendTotal, blendTotal, detailBlend)); Var *detailColor = (Var*)LangElement::find( "macroColor" ); if ( !detailColor ) { detailColor = new Var; detailColor->setType( "float4" ); detailColor->setName( "macroColor" ); meta->addStatement( new GenOp( " @;\r\n", new DecOp( detailColor ) ) ); } // Get the detail texture. Var *detailMap = new Var; detailMap->setType( "sampler2D" ); detailMap->setName( String::ToString( "macroMap%d", detailIndex ) ); detailMap->uniform = true; detailMap->sampler = true; detailMap->constNum = Var::getTexUnitNum(); // used as texture unit num here //Create texture object for directx 11 Var *detailTex = NULL; if (mIsDirect3D11) { detailMap->setType("SamplerState"); detailTex = new Var; detailTex->setName(String::ToString("macroMapTex%d", detailIndex)); detailTex->setType("Texture2D"); detailTex->uniform = true; detailTex->texture = true; detailTex->constNum = detailMap->constNum; } // If we're using SM 3.0 then take advantage of // dynamic branching to skip layers per-pixel. if ( GFX->getPixelShaderVersion() >= 3.0f ) meta->addStatement( new GenOp( " if ( @ > 0.0f )\r\n", detailBlend ) ); meta->addStatement( new GenOp( " {\r\n" ) ); // Note that we're doing the standard greyscale detail // map technique here which can darken and lighten the // diffuse texture. // // We take two color samples and lerp between them for // side projection layers... else a single sample. // if (fd.features.hasFeature(MFT_TerrainSideProject, detailIndex)) { if (mIsDirect3D11) { meta->addStatement(new GenOp(" @ = ( lerp( @.Sample( @, @.yz ), @.Sample( @, @.xz ), @.z ) * 2.0 ) - 1.0;\r\n", detailColor, detailTex, detailMap, inDet, detailTex, detailMap, inDet, inTex)); } else meta->addStatement(new GenOp(" @ = ( lerp( tex2D( @, @.yz ), tex2D( @, @.xz ), @.z ) * 2.0 ) - 1.0;\r\n", detailColor, detailMap, inDet, detailMap, inDet, inTex)); } else { if (mIsDirect3D11) meta->addStatement(new GenOp(" @ = ( @.Sample( @, @.xy ) * 2.0 ) - 1.0;\r\n", detailColor, detailTex, detailMap, inDet)); else meta->addStatement(new GenOp(" @ = ( tex2D( @, @.xy ) * 2.0 ) - 1.0;\r\n", detailColor, detailMap, inDet)); } meta->addStatement( new GenOp( " @ *= @.y * @.w;\r\n", detailColor, detailInfo, inDet ) ); ShaderFeature::OutputTarget target = ShaderFeature::DefaultTarget; if(fd.features.hasFeature(MFT_DeferredTerrainMacroMap)) target= ShaderFeature::RenderTarget1; Var *outColor = (Var*)LangElement::find( getOutputTargetVarName(target) ); meta->addStatement(new GenOp(" @ += @ * @;\r\n", outColor, detailColor, detailBlend)); meta->addStatement( new GenOp( " }\r\n" ) ); output = meta; }
void TerrainMacroMapFeatGLSL::processPix( Vector<ShaderComponent*> &componentList, const MaterialFeatureData &fd ) { const U32 detailIndex = getProcessIndex(); Var *inTex = getVertTexCoord( "texCoord" ); MultiLine *meta = new MultiLine; // We need the negative tangent space view vector // as in parallax mapping we step towards the camera. Var *negViewTS = (Var*)LangElement::find( "negViewTS" ); if ( !negViewTS && fd.features.hasFeature( MFT_TerrainParallaxMap ) ) { Var *inNegViewTS = (Var*)LangElement::find( "outNegViewTS" ); if ( !inNegViewTS ) { ShaderConnector *connectComp = dynamic_cast<ShaderConnector *>( componentList[C_CONNECTOR] ); inNegViewTS = connectComp->getElement( RT_TEXCOORD ); inNegViewTS->setName( "outNegViewTS" ); inNegViewTS->setStructName( "IN" ); inNegViewTS->setType( "vec3" ); } negViewTS = new Var( "negViewTS", "vec3" ); meta->addStatement( new GenOp( " @ = normalize( @ );\r\n", new DecOp( negViewTS ), inNegViewTS ) ); } // Get the layer samples. Var *layerSample = (Var*)LangElement::find( "layerSample" ); if ( !layerSample ) { layerSample = new Var; layerSample->setType( "vec4" ); layerSample->setName( "layerSample" ); // Get the layer texture var Var *layerTex = new Var; layerTex->setType( "sampler2D" ); layerTex->setName( "macrolayerTex" ); layerTex->uniform = true; layerTex->sampler = true; layerTex->constNum = Var::getTexUnitNum(); // Read the layer texture to get the samples. meta->addStatement( new GenOp( " @ = round( tex2D( @, @.xy ) * 255.0f );\r\n", new DecOp( layerSample ), layerTex, inTex ) ); } Var *layerSize = (Var*)LangElement::find( "layerSize" ); if ( !layerSize ) { layerSize = new Var; layerSize->setType( "float" ); layerSize->setName( "layerSize" ); layerSize->uniform = true; layerSize->constSortPos = cspPass; } // Grab the incoming detail coord. Var *inDet = _getInMacroCoord( componentList ); // Get the detail id. Var *detailInfo = _getMacroIdStrengthParallax(); // Create the detail blend var. Var *detailBlend = new Var; detailBlend->setType( "float" ); detailBlend->setName( String::ToString( "macroBlend%d", detailIndex ) ); // Calculate the blend for this detail texture. meta->addStatement( new GenOp( " @ = calcBlend( @.x, @.xy, @, @ );\r\n", new DecOp( detailBlend ), detailInfo, inTex, layerSize, layerSample ) ); // Get a var and accumulate the blend amount. Var *blendTotal = (Var*)LangElement::find( "blendTotal" ); if ( !blendTotal ) { blendTotal = new Var; //blendTotal->setName( "blendTotal" ); blendTotal->setName( "blendTotal" ); blendTotal->setType( "float" ); meta->addStatement( new GenOp( " @ = 0;\r\n", new DecOp( blendTotal ) ) ); } // Add to the blend total. meta->addStatement( new GenOp( " @ = max( @, @ );\r\n", blendTotal, blendTotal, detailBlend ) ); // If this is a prepass then we skip color. if ( fd.features.hasFeature( MFT_PrePassConditioner ) ) { // Check to see if we have a gbuffer normal. Var *gbNormal = (Var*)LangElement::find( "gbNormal" ); // If we have a gbuffer normal and we don't have a // normal map feature then we need to lerp in a // default normal else the normals below this layer // will show thru. if ( gbNormal && !fd.features.hasFeature( MFT_TerrainNormalMap, detailIndex ) ) { Var *viewToTangent = getInViewToTangent( componentList ); meta->addStatement( new GenOp( " @ = lerp( @, tGetMatrix3Row(@, 2), min( @, @.w ) );\r\n", gbNormal, gbNormal, viewToTangent, detailBlend, inDet ) ); } output = meta; return; } Var *detailColor = (Var*)LangElement::find( "macroColor" ); if ( !detailColor ) { detailColor = new Var; detailColor->setType( "vec4" ); detailColor->setName( "macroColor" ); meta->addStatement( new GenOp( " @;\r\n", new DecOp( detailColor ) ) ); } // Get the detail texture. Var *detailMap = new Var; detailMap->setType( "sampler2D" ); detailMap->setName( String::ToString( "macroMap%d", detailIndex ) ); detailMap->uniform = true; detailMap->sampler = true; detailMap->constNum = Var::getTexUnitNum(); // used as texture unit num here // If we're using SM 3.0 then take advantage of // dynamic branching to skip layers per-pixel. if ( GFX->getPixelShaderVersion() >= 3.0f ) meta->addStatement( new GenOp( " if ( @ > 0.0f )\r\n", detailBlend ) ); meta->addStatement( new GenOp( " {\r\n" ) ); // Note that we're doing the standard greyscale detail // map technique here which can darken and lighten the // diffuse texture. // // We take two color samples and lerp between them for // side projection layers... else a single sample. // if ( fd.features.hasFeature( MFT_TerrainSideProject, detailIndex ) ) { meta->addStatement( new GenOp( " @ = ( lerp( tex2D( @, @.yz ), tex2D( @, @.xz ), @.z ) * 2.0 ) - 1.0;\r\n", detailColor, detailMap, inDet, detailMap, inDet, inTex ) ); } else { meta->addStatement( new GenOp( " @ = ( tex2D( @, @.xy ) * 2.0 ) - 1.0;\r\n", detailColor, detailMap, inDet ) ); } meta->addStatement( new GenOp( " @ *= @.y * @.w;\r\n", detailColor, detailInfo, inDet ) ); Var *baseColor = (Var*)LangElement::find( "baseColor" ); Var *outColor = (Var*)LangElement::find( "col" ); meta->addStatement( new GenOp( " @ = lerp( @, @ + @, @ );\r\n", outColor, outColor, outColor, detailColor, detailBlend ) ); //outColor, outColor, baseColor, detailColor, detailBlend ) ); meta->addStatement( new GenOp( " }\r\n" ) ); output = meta; }