void TerrainBlankInfoMapFeatHLSL::processPix(Vector<ShaderComponent*> &componentList,
const MaterialFeatureData &fd)
{
// search for material var
Var *material;
OutputTarget targ = RenderTarget1;
if (fd.features[MFT_isDeferred])
{
targ = RenderTarget2;
}
material = (Var*)LangElement::find(getOutputTargetVarName(targ));
MultiLine * meta = new MultiLine;
if (!material)
{
// create color var
material = new Var;
material->setType("fragout");
material->setName(getOutputTargetVarName(targ));
material->setStructName("OUT");
}
meta->addStatement(new GenOp(" @ = float4(0.0,0.0,0.0,0.0001);\r\n", material));
output = meta;
}
void TerrainAdditiveFeatHLSL::processPix( Vector<ShaderComponent*> &componentList,
const MaterialFeatureData &fd )
{
Var *color = NULL;
Var *normal = NULL;
if (fd.features[MFT_DeferredTerrainDetailMap])
{
color = (Var*) LangElement::find( getOutputTargetVarName(ShaderFeature::RenderTarget1) );
normal = (Var*) LangElement::find( getOutputTargetVarName(ShaderFeature::DefaultTarget) );
}
else
color = (Var*) LangElement::find( getOutputTargetVarName(ShaderFeature::DefaultTarget) );
Var *blendTotal = (Var*)LangElement::find( "blendTotal" );
if ( !color || !blendTotal )
return;
MultiLine *meta = new MultiLine;
meta->addStatement( new GenOp( " clip( @ - 0.0001 );\r\n", blendTotal ) );
meta->addStatement( new GenOp( " @.a = @;\r\n", color, blendTotal ) );
if (normal)
meta->addStatement(new GenOp(" @.a = @;\r\n", normal, blendTotal));
output = meta;
}
LangElement *ConditionerFeature::assignOutput( Var *unconditionedOutput, ShaderFeature::OutputTarget outputTarget /* = ShaderFeature::DefaultTarget*/ )
{
LangElement *assign;
MultiLine *meta = new MultiLine;
meta->addStatement( new GenOp( avar( "\r\n\r\n // output buffer format: %s\r\n", GFXStringTextureFormat[getBufferFormat()] ) ) );
// condition the output
Var *conditionedOutput = _conditionOutput( unconditionedOutput, meta );
// search for color var
Var *color = (Var*) LangElement::find( getOutputTargetVarName(outputTarget) );
if ( !color )
{
// create color var
color = new Var;
if(GFX->getAdapterType() == OpenGL)
{
color->setName( getOutputTargetVarName(outputTarget) );
color->setType( "vec4" );
DecOp* colDecl = new DecOp(color);
assign = new GenOp( "@ = vec4(@)", colDecl, conditionedOutput );
}
else
{
color->setType( "fragout" );
color->setName( getOutputTargetVarName(outputTarget) );
color->setStructName( "OUT" );
assign = new GenOp( "@ = @", color, conditionedOutput );
}
}
else
{
if (GFX->getAdapterType() == OpenGL)
assign = new GenOp( "@ = vec4(@)", color, conditionedOutput);
else
assign = new GenOp( "@ = @", color, conditionedOutput );
}
meta->addStatement( new GenOp( " @;\r\n", assign ) );
return meta;
}
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 TerrainDetailMapFeatGLSL::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( "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( "layerTex" );
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 = _getInDetailCoord( componentList );
// Get the detail id.
Var *detailInfo = _getDetailIdStrengthParallax();
// Create the detail blend var.
Var *detailBlend = new Var;
detailBlend->setType( "float" );
detailBlend->setName( String::ToString( "detailBlend%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 ) );
// New terrain
Var *lerpBlend = (Var*)LangElement::find("lerpBlend");
if (!lerpBlend)
{
lerpBlend = new Var;
lerpBlend->setType("float");
lerpBlend->setName("lerpBlend");
lerpBlend->uniform = true;
lerpBlend->constSortPos = cspPrimitive;
}
Var *blendDepth = (Var*)LangElement::find(String::ToString("blendDepth%d", detailIndex));
if (!blendDepth)
{
blendDepth = new Var;
blendDepth->setType("float");
blendDepth->setName(String::ToString("blendDepth%d", detailIndex));
blendDepth->uniform = true;
blendDepth->constSortPos = cspPrimitive;
}
ShaderFeature::OutputTarget target = ShaderFeature::DefaultTarget;
if(fd.features.hasFeature( MFT_DeferredTerrainDetailMap ))
target= ShaderFeature::RenderTarget1;
Var *outColor = (Var*)LangElement::find( getOutputTargetVarName(target) );
if (!outColor)
{
// create color var
outColor = new Var;
outColor->setType("float4");
outColor->setName("col");
outColor->setStructName("OUT");
meta->addStatement(new GenOp(" @;\r\n", outColor));
}
Var *detailColor = (Var*)LangElement::find("detailColor");
if (!detailColor)
{
detailColor = new Var;
detailColor->setType("float4");
detailColor->setName("detailColor");
meta->addStatement(new GenOp(" @;\r\n", new DecOp(detailColor)));
}
// Get the detail texture.
Var *detailMap = new Var;
detailMap->setType("sampler2D");
detailMap->setName(String::ToString("detailMap%d", detailIndex));
detailMap->uniform = true;
detailMap->sampler = true;
detailMap->constNum = Var::getTexUnitNum(); // used as texture unit num here
// Get the normal map texture.
Var *normalMap = _getNormalMapTex();
// Issue happens somewhere here -----
// Sample the normal map.
//
// We take two normal samples and lerp between them for
// side projection layers... else a single sample.
LangElement *texOp;
// 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));
texOp = new GenOp("lerp( tex2D( @, @.yz ), tex2D( @, @.xz ), @.z )",
normalMap, inDet, normalMap, inDet, inTex);
}
else
{
meta->addStatement(new GenOp(" @ = ( tex2D( @, @.xy ) * 2.0 ) - 1.0;\r\n",
detailColor, detailMap, inDet));
texOp = new GenOp("tex2D(@, @.xy)", normalMap, inDet);
}
// New terrain
// 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( " @ += @;\r\n", blendTotal, detailBlend ) );
// If we had a parallax feature... then factor in the parallax
// amount so that it fades out with the layer blending.
if ( fd.features.hasFeature( MFT_TerrainParallaxMap, detailIndex ) )
{
// Get the rest of our inputs.
Var *normalMap = _getNormalMapTex();
// Call the library function to do the rest.
if (fd.features.hasFeature(MFT_IsDXTnm, detailIndex))
{
meta->addStatement(new GenOp(" @.xy += parallaxOffsetDxtnm( @, @.xy, @, @.z * @ );\r\n",
inDet, normalMap, inDet, negViewTS, detailInfo, detailBlend));
}
else
{
meta->addStatement(new GenOp(" @.xy += parallaxOffset( @, @.xy, @, @.z * @ );\r\n",
inDet, normalMap, inDet, negViewTS, detailInfo, detailBlend));
}
}
// 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 ) );
meta->addStatement( new GenOp( " @ += @ * @;\r\n",
outColor, detailColor, detailBlend));
meta->addStatement( new GenOp( " }\r\n" ) );
output = meta;
}
void GBufferConditionerGLSL::processPix( Vector<ShaderComponent*> &componentList,
const MaterialFeatureData &fd )
{
// sanity
AssertFatal( fd.features[MFT_EyeSpaceDepthOut], "No depth-out feature enabled! Bad news!" );
MultiLine *meta = new MultiLine;
// grab connector normal
ShaderConnector *connectComp = dynamic_cast<ShaderConnector *>( componentList[C_CONNECTOR] );
Var *gbNormal = (Var*) LangElement::find( "gbNormal" );
if( !gbNormal )
{
gbNormal = connectComp->getElement( RT_TEXCOORD );
gbNormal->setName( "gbNormal" );
gbNormal->setStructName( "IN" );
gbNormal->setType( "float3" );
gbNormal->mapsToSampler = false;
gbNormal->uniform = false;
}
// find depth
ShaderFeature *depthFeat = FEATUREMGR->getByType( MFT_EyeSpaceDepthOut );
AssertFatal( depthFeat != NULL, "No eye space depth feature found!" );
Var *depth = (Var*) LangElement::find(depthFeat->getOutputVarName());
AssertFatal( depth, "Something went bad with ShaderGen. The depth should be already generated by the EyeSpaceDepthOut feature." );
Var *unconditionedOut = new Var;
unconditionedOut->setType("float4");
unconditionedOut->setName("normal_depth");
LangElement *outputDecl = new DecOp( unconditionedOut );
// If we're doing prepass blending then we need
// to steal away the alpha channel before the
// conditioner stomps on it.
Var *alphaVal = NULL;
if ( fd.features[ MFT_IsTranslucentZWrite ] )
{
alphaVal = new Var( "outAlpha", "float" );
meta->addStatement( new GenOp( " @ = col.a; // MFT_IsTranslucentZWrite\r\n", new DecOp( alphaVal ) ) );
}
// If using interlaced normals, invert the normal
if(fd.features[MFT_InterlacedPrePass])
{
// NOTE: Its safe to not call ShaderFeatureGLSL::addOutVpos() in the vertex
// shader as for SM 3.0 nothing is needed there.
Var *Vpos = (Var*) LangElement::find( "gl_Position" ); //Var *Vpos = ShaderFeatureGLSL::getInVpos( meta, componentList );
Var *iGBNormal = new Var( "interlacedGBNormal", "float3" );
meta->addStatement(new GenOp(" @ = (frac(@.y * 0.5) < 0.1 ? reflect(@, float3(0.0, -1.0, 0.0)) : @);\r\n", new DecOp(iGBNormal), Vpos, gbNormal, gbNormal));
gbNormal = iGBNormal;
}
// NOTE: We renormalize the normal here as they
// will not stay normalized during interpolation.
meta->addStatement( new GenOp(" @ = @;", outputDecl, new GenOp( "float4(normalize(@), @)", gbNormal, depth ) ) );
meta->addStatement( assignOutput( unconditionedOut ) );
// If we have an alpha var then we're doing prepass lerp blending.
if ( alphaVal )
{
Var *outColor = (Var*)LangElement::find( getOutputTargetVarName( DefaultTarget ) );
meta->addStatement( new GenOp( " @.ba = float2( 0, @ ); // MFT_IsTranslucentZWrite\r\n", outColor, alphaVal ) );
}
output = meta;
}
