public override string GenerateShaderForOutput(int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar)
{
if (dataCollector.IsTemplate)
{
return(GetOutputVectorItem(0, outputId, dataCollector.TemplateDataCollectorInstance.GetWorldSpaceLightDir(CurrentPrecisionType)));
}
;
dataCollector.AddToIncludes(UniqueId, Constants.UnityCgLibFuncs);
dataCollector.AddToInput(UniqueId, SurfaceInputs.WORLD_POS);
return(GetOutputVectorItem(0, outputId, GeneratorUtils.GenerateWorldLightDirection(ref dataCollector, UniqueId, CurrentPrecisionType)));
}
public override string GenerateShaderForOutput(int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar)
{
if (m_outputPorts[0].IsLocalValue(dataCollector.PortCategory))
{
return(m_outputPorts[0].LocalValue(dataCollector.PortCategory));
}
if (dataCollector.IsFragmentCategory)
{
dataCollector.AddToInput(UniqueId, SurfaceInputs.WORLD_POS);
}
string viewdir = string.Empty;
if (m_viewType == ViewType.ViewDir)
{
if (m_viewVecPort.IsConnected)
{
viewdir = m_viewVecPort.GeneratePortInstructions(ref dataCollector);
}
else
{
viewdir = GeneratorUtils.GenerateViewDirection(ref dataCollector, UniqueId, ViewSpace.World);
}
}
else
{
if (m_viewVecPort.IsConnected)
{
viewdir = m_viewVecPort.GeneratePortInstructions(ref dataCollector);
}
else
{
viewdir = GeneratorUtils.GenerateWorldLightDirection(ref dataCollector, UniqueId, CurrentPrecisionType);
}
}
string normal = string.Empty;
if (m_normalType == NormalType.WorldNormal || m_normalType == NormalType.TangentNormal)
{
if (m_normalVecPort.IsConnected)
{
normal = m_normalVecPort.GeneratePortInstructions(ref dataCollector);
if (dataCollector.IsFragmentCategory)
{
dataCollector.AddToInput(UniqueId, SurfaceInputs.INTERNALDATA, addSemiColon: false);
if (m_normalType == NormalType.TangentNormal)
{
if (dataCollector.IsTemplate)
{
normal = dataCollector.TemplateDataCollectorInstance.GetWorldNormal(UniqueId, CurrentPrecisionType, normal, OutputId);
}
else
{
normal = GeneratorUtils.GenerateWorldNormal(ref dataCollector, UniqueId, CurrentPrecisionType, normal, OutputId);
dataCollector.AddToInput(UniqueId, SurfaceInputs.WORLD_NORMAL, CurrentPrecisionType);
dataCollector.ForceNormal = true;
}
}
else
{
if (m_normalizeVectors)
{
normal = string.Format("normalize( {0} )", normal);
}
}
}
else
{
if (m_normalType == NormalType.TangentNormal)
{
string wtMatrix = GeneratorUtils.GenerateWorldToTangentMatrix(ref dataCollector, UniqueId, CurrentPrecisionType);
normal = "mul( " + normal + "," + wtMatrix + " )";
}
}
}
else
{
if (dataCollector.IsFragmentCategory)
{
dataCollector.AddToInput(UniqueId, SurfaceInputs.WORLD_NORMAL, CurrentPrecisionType);
if (dataCollector.DirtyNormal)
{
dataCollector.AddToInput(UniqueId, SurfaceInputs.INTERNALDATA, addSemiColon: false);
}
}
if (dataCollector.IsTemplate)
{
normal = dataCollector.TemplateDataCollectorInstance.GetWorldNormal(CurrentPrecisionType, normalize: (dataCollector.DirtyNormal && m_normalizeVectors));
}
else
{
normal = GeneratorUtils.GenerateWorldNormal(ref dataCollector, UniqueId, (dataCollector.DirtyNormal && m_normalizeVectors));
}
if (dataCollector.DirtyNormal)
{
dataCollector.ForceNormal = true;
}
}
}
else
{
// generate HV
if (!m_normalVecPort.IsConnected)
{
string halfView = GeneratorUtils.GenerateViewDirection(ref dataCollector, UniqueId, ViewSpace.World);
string halfLight = GeneratorUtils.GenerateWorldLightDirection(ref dataCollector, UniqueId, CurrentPrecisionType);
normal = "halfVector" + OutputId;
dataCollector.AddLocalVariable(UniqueId, CurrentPrecisionType, WirePortDataType.FLOAT3, normal, "normalize( " + halfView + " + " + halfLight + " )");
}
else
{
normal = m_normalVecPort.GeneratePortInstructions(ref dataCollector);
if (m_normalizeVectors)
{
normal = string.Format("normalize( {0} )", normal);
}
}
}
string bias = m_biasPort.GeneratePortInstructions(ref dataCollector);
string scale = m_scalePort.GeneratePortInstructions(ref dataCollector);
string power = m_powerPort.GeneratePortInstructions(ref dataCollector);
string fresnelNDotVLocalValue = "dot( " + normal + ", " + viewdir + " )";
string fresnelNDotVLocalVar = "fresnelNdotV" + OutputId;
dataCollector.AddLocalVariable(UniqueId, CurrentPrecisionType, WirePortDataType.FLOAT, fresnelNDotVLocalVar, fresnelNDotVLocalValue);
string fresnelFinalVar = FresnedFinalVar + OutputId;
string result = string.Empty;
switch (m_fresnelType)
{
default:
case FresnelType.Standard:
{
result = string.Format("( {0} + {1} * pow( 1.0 - {2}, {3} ) )", bias, scale, fresnelNDotVLocalVar, power);
}
break;
case FresnelType.Schlick:
{
string f0VarName = "f0" + OutputId;
dataCollector.AddLocalVariable(UniqueId, CurrentPrecisionType, WirePortDataType.FLOAT, f0VarName, bias);
result = string.Format("( {0} + ( 1.0 - {0} ) * pow( 1.0 - {1}, 5 ) )", f0VarName, fresnelNDotVLocalVar);
}
break;
case FresnelType.SchlickIOR:
{
string iorVarName = "ior" + OutputId;
dataCollector.AddLocalVariable(UniqueId, CurrentPrecisionType, WirePortDataType.FLOAT, iorVarName, scale);
dataCollector.AddLocalVariable(UniqueId, iorVarName + " = pow( ( 1-" + iorVarName + " )/( 1+" + iorVarName + " ), 2 );");
result = string.Format("( {0} + ( 1.0 - {0} ) * pow( 1.0 - {1}, 5 ) )", iorVarName, fresnelNDotVLocalVar);
}
break;
}
RegisterLocalVariable(0, result, ref dataCollector, fresnelFinalVar);
return(m_outputPorts[0].LocalValue(dataCollector.PortCategory));
}