private static HashSet <string> GetActiveFieldsFromMasterNode(AbstractMaterialNode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
DecalMasterNode masterNode = iMasterNode as DecalMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.affectsAlbedo.isOn)
{
activeFields.Add("Material.AffectsAlbedo");
}
if (masterNode.affectsNormal.isOn)
{
activeFields.Add("Material.AffectsNormal");
}
if (masterNode.affectsEmission.isOn)
{
activeFields.Add("Material.AffectsEmission");
}
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(AbstractMaterialNode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
HairMasterNode masterNode = iMasterNode as HairMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.doubleSidedMode != DoubleSidedMode.Disabled)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
if (masterNode.doubleSidedMode == DoubleSidedMode.FlippedNormals)
{
activeFields.Add("DoubleSided.Flip");
}
else if (masterNode.doubleSidedMode == DoubleSidedMode.MirroredNormals)
{
activeFields.Add("DoubleSided.Mirror");
}
// Important: the following is used in SharedCode.template.hlsl for determining the normal flip mode
activeFields.Add("FragInputs.isFrontFace");
}
}
switch (masterNode.materialType)
{
case HairMasterNode.MaterialType.KajiyaKay:
activeFields.Add("Material.KajiyaKay");
break;
default:
UnityEngine.Debug.LogError("Unknown material type: " + masterNode.materialType);
break;
}
if (masterNode.alphaTest.isOn)
{
int count = 0;
// If alpha test shadow is enable, we use it, otherwise we use the regular test
if (pass.PixelShaderUsesSlot(HairMasterNode.AlphaClipThresholdShadowSlotId) && masterNode.alphaTestShadow.isOn)
{
activeFields.Add("AlphaTestShadow");
++count;
}
else if (pass.PixelShaderUsesSlot(HairMasterNode.AlphaClipThresholdSlotId))
{
activeFields.Add("AlphaTest");
++count;
}
// Other alpha test are suppose to be alone
else if (pass.PixelShaderUsesSlot(HairMasterNode.AlphaClipThresholdDepthPrepassSlotId))
{
activeFields.Add("AlphaTestPrepass");
++count;
}
else if (pass.PixelShaderUsesSlot(HairMasterNode.AlphaClipThresholdDepthPostpassSlotId))
{
activeFields.Add("AlphaTestPostpass");
++count;
}
UnityEngine.Debug.Assert(count == 1, "Alpha test value not set correctly");
}
if (masterNode.surfaceType != SurfaceType.Opaque)
{
activeFields.Add("SurfaceType.Transparent");
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Premultiply)
{
activeFields.Add("BlendMode.Premultiply");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
if (masterNode.blendPreserveSpecular.isOn)
{
activeFields.Add("BlendMode.PreserveSpecular");
}
if (masterNode.transparencyFog.isOn)
{
activeFields.Add("AlphaFog");
}
if (masterNode.transparentWritesVelocity.isOn)
{
activeFields.Add("TransparentWritesVelocity");
}
}
if (!masterNode.receiveDecals.isOn)
{
activeFields.Add("DisableDecals");
}
if (!masterNode.receiveSSR.isOn)
{
activeFields.Add("DisableSSR");
}
if (masterNode.specularAA.isOn && pass.PixelShaderUsesSlot(HairMasterNode.SpecularAAThresholdSlotId) && pass.PixelShaderUsesSlot(HairMasterNode.SpecularAAScreenSpaceVarianceSlotId))
{
activeFields.Add("Specular.AA");
}
if (masterNode.IsSlotConnected(HairMasterNode.BentNormalSlotId) && pass.PixelShaderUsesSlot(HairMasterNode.BentNormalSlotId))
{
activeFields.Add("BentNormal");
}
if (masterNode.IsSlotConnected(HairMasterNode.HairStrandDirectionSlotId) && pass.PixelShaderUsesSlot(HairMasterNode.HairStrandDirectionSlotId))
{
activeFields.Add("HairStrandDirection");
}
if (masterNode.transmission.isOn)
{
activeFields.Add("Material.Transmission");
}
if (masterNode.subsurfaceScattering.isOn && masterNode.surfaceType != SurfaceType.Transparent)
{
activeFields.Add("Material.SubsurfaceScattering");
}
switch (masterNode.specularOcclusionMode)
{
case SpecularOcclusionMode.Off:
break;
case SpecularOcclusionMode.FromAO:
activeFields.Add("SpecularOcclusionFromAO");
break;
case SpecularOcclusionMode.FromAOAndBentNormal:
activeFields.Add("SpecularOcclusionFromAOBentNormal");
break;
case SpecularOcclusionMode.Custom:
activeFields.Add("SpecularOcclusionCustom");
break;
default:
break;
}
if (pass.PixelShaderUsesSlot(HairMasterNode.AmbientOcclusionSlotId))
{
var occlusionSlot = masterNode.FindSlot <Vector1MaterialSlot>(HairMasterNode.AmbientOcclusionSlotId);
bool connected = masterNode.IsSlotConnected(HairMasterNode.AmbientOcclusionSlotId);
if (connected || occlusionSlot.value != occlusionSlot.defaultValue)
{
activeFields.Add("AmbientOcclusion");
}
}
if (masterNode.IsSlotConnected(HairMasterNode.LightingSlotId) && pass.PixelShaderUsesSlot(HairMasterNode.LightingSlotId))
{
activeFields.Add("LightingGI");
}
if (masterNode.IsSlotConnected(HairMasterNode.BackLightingSlotId) && pass.PixelShaderUsesSlot(HairMasterNode.LightingSlotId))
{
activeFields.Add("BackLightingGI");
}
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(AbstractMaterialNode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
UnlitMasterNode masterNode = iMasterNode as UnlitMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.IsSlotConnected(UnlitMasterNode.AlphaThresholdSlotId) ||
masterNode.GetInputSlots <Vector1MaterialSlot>().First(x => x.id == UnlitMasterNode.AlphaThresholdSlotId).value > 0.0f)
{
activeFields.Add("AlphaTest");
}
// Keywords for transparent
// #pragma shader_feature _SURFACE_TYPE_TRANSPARENT
if (masterNode.surfaceType != SurfaceType.Opaque)
{
// transparent-only defines
activeFields.Add("SurfaceType.Transparent");
// #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
}
else
{
// opaque-only defines
}
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
HDLitMasterNode masterNode = iMasterNode as HDLitMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.doubleSidedMode != DoubleSidedMode.Disabled)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
if (masterNode.doubleSidedMode == DoubleSidedMode.FlippedNormals)
{
activeFields.Add("DoubleSided.Flip");
}
else if (masterNode.doubleSidedMode == DoubleSidedMode.MirroredNormals)
{
activeFields.Add("DoubleSided.Mirror");
}
activeFields.Add("FragInputs.isFrontFace"); // will need this for determining normal flip mode
}
}
switch (masterNode.materialType)
{
case HDLitMasterNode.MaterialType.Anisotropy:
activeFields.Add("Material.Anisotropy");
break;
case HDLitMasterNode.MaterialType.Iridescence:
activeFields.Add("Material.Iridescence");
break;
case HDLitMasterNode.MaterialType.SpecularColor:
activeFields.Add("Material.SpecularColor");
break;
case HDLitMasterNode.MaterialType.Standard:
activeFields.Add("Material.Standard");
break;
case HDLitMasterNode.MaterialType.SubsurfaceScattering:
{
activeFields.Add("Material.SubsurfaceScattering");
if (masterNode.sssTransmission.isOn)
{
activeFields.Add("Material.Transmission");
}
}
break;
case HDLitMasterNode.MaterialType.Translucent:
{
activeFields.Add("Material.Translucent");
activeFields.Add("Material.Transmission");
}
break;
default:
UnityEngine.Debug.LogError("Unknown material type: " + masterNode.materialType);
break;
}
if (masterNode.alphaTest.isOn)
{
int count = 0;
if (pass.PixelShaderUsesSlot(HDLitMasterNode.AlphaThresholdSlotId))
{
activeFields.Add("AlphaTest");
++count;
}
if (pass.PixelShaderUsesSlot(HDLitMasterNode.AlphaThresholdDepthPrepassSlotId))
{
activeFields.Add("AlphaTestPrepass");
++count;
}
if (pass.PixelShaderUsesSlot(HDLitMasterNode.AlphaThresholdDepthPostpassSlotId))
{
activeFields.Add("AlphaTestPostpass");
++count;
}
UnityEngine.Debug.Assert(count == 1, "Alpha test value not set correctly");
}
if (masterNode.surfaceType != SurfaceType.Opaque)
{
activeFields.Add("SurfaceType.Transparent");
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Premultiply)
{
activeFields.Add("BlendMode.Premultiply");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
if (masterNode.blendPreserveSpecular.isOn)
{
activeFields.Add("BlendMode.PreserveSpecular");
}
if (masterNode.transparencyFog.isOn)
{
activeFields.Add("AlphaFog");
}
}
if (masterNode.receiveDecals.isOn)
{
activeFields.Add("Decals");
}
if (!masterNode.receiveSSR.isOn)
{
activeFields.Add("DisableSSR");
}
if (masterNode.specularAA.isOn && pass.PixelShaderUsesSlot(HDLitMasterNode.SpecularAAThresholdSlotId) && pass.PixelShaderUsesSlot(HDLitMasterNode.SpecularAAScreenSpaceVarianceSlotId))
{
activeFields.Add("Specular.AA");
}
if (masterNode.energyConservingSpecular.isOn)
{
activeFields.Add("Specular.EnergyConserving");
}
if (masterNode.HasRefraction())
{
activeFields.Add("Refraction");
switch (masterNode.refractionModel)
{
case ScreenSpaceRefraction.RefractionModel.Box:
activeFields.Add("RefractionBox");
break;
case ScreenSpaceRefraction.RefractionModel.Sphere:
activeFields.Add("RefractionSphere");
break;
default:
UnityEngine.Debug.LogError("Unknown refraction model: " + masterNode.refractionModel);
break;
}
}
if (masterNode.IsSlotConnected(HDLitMasterNode.BentNormalSlotId) && pass.PixelShaderUsesSlot(HDLitMasterNode.BentNormalSlotId))
{
activeFields.Add("BentNormal");
}
if (masterNode.IsSlotConnected(HDLitMasterNode.TangentSlotId) && pass.PixelShaderUsesSlot(HDLitMasterNode.TangentSlotId))
{
activeFields.Add("Tangent");
}
switch (masterNode.specularOcclusionMode)
{
case SpecularOcclusionMode.Off:
break;
case SpecularOcclusionMode.FromAO:
activeFields.Add("SpecularOcclusionFromAO");
break;
case SpecularOcclusionMode.FromAOAndBentNormal:
activeFields.Add("SpecularOcclusionFromAOBentNormal");
break;
case SpecularOcclusionMode.Custom:
activeFields.Add("SpecularOcclusionCustom");
break;
default:
break;
}
if (pass.PixelShaderUsesSlot(HDLitMasterNode.AmbientOcclusionSlotId))
{
var occlusionSlot = masterNode.FindSlot <Vector1MaterialSlot>(HDLitMasterNode.AmbientOcclusionSlotId);
bool connected = masterNode.IsSlotConnected(HDLitMasterNode.AmbientOcclusionSlotId);
if (connected || occlusionSlot.value != occlusionSlot.defaultValue)
{
activeFields.Add("AmbientOcclusion");
}
}
if (pass.PixelShaderUsesSlot(HDLitMasterNode.CoatMaskSlotId))
{
var coatMaskSlot = masterNode.FindSlot <Vector1MaterialSlot>(HDLitMasterNode.CoatMaskSlotId);
bool connected = masterNode.IsSlotConnected(HDLitMasterNode.CoatMaskSlotId);
if (connected || coatMaskSlot.value > 0.0f)
{
activeFields.Add("CoatMask");
}
}
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
PBRMasterNode masterNode = iMasterNode as PBRMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.twoSided.isOn)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
activeFields.Add("DoubleSided.Mirror"); // TODO: change this depending on what kind of normal flip you want..
activeFields.Add("FragInputs.isFrontFace"); // will need this for determining normal flip mode
}
}
switch (masterNode.model)
{
case PBRMasterNode.Model.Metallic:
break;
case PBRMasterNode.Model.Specular:
activeFields.Add("Material.SpecularColor");
break;
default:
// TODO: error!
break;
}
if (masterNode.IsSlotConnected(PBRMasterNode.AlphaThresholdSlotId) ||
masterNode.GetInputSlots <Vector1MaterialSlot>().First(x => x.id == PBRMasterNode.AlphaThresholdSlotId).value > 0.0f)
{
activeFields.Add("AlphaTest");
}
// Keywords for transparent
// #pragma shader_feature _SURFACE_TYPE_TRANSPARENT
if (masterNode.surfaceType != SurfaceType.Opaque)
{
// transparent-only defines
activeFields.Add("SurfaceType.Transparent");
// #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
// else if (masterNode.alphaMode == PBRMasterNode.AlphaMode.PremultiplyAlpha) // TODO
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRE_MULTIPLY 1", true);
// }
}
else
{
// opaque-only defines
}
// enable dithering LOD crossfade
// #pragma multi_compile _ LOD_FADE_CROSSFADE
// TODO: We should have this keyword only if VelocityInGBuffer is enable, how to do that ?
//#pragma multi_compile VELOCITYOUTPUT_OFF VELOCITYOUTPUT_ON
return(activeFields);
}
//
// Reference for GetActiveFieldsFromMasterNode
// -------------------------------------------
//
// Properties (enables etc):
//
// ok+MFD -> material feature define: means we need a predicate, because we will transform it into a #define that match the material feature, shader_feature-defined, that the rest of the shader code uses.
//
// ok+MFD masterNode.baseParametrization --> even though we can just always transfer present fields (check with $SurfaceDescription.*) like specularcolor and metallic,
// we need to translate this into the _MATERIAL_FEATURE_SPECULAR_COLOR define.
//
// ok masterNode.energyConservingSpecular
//
// ~~~~ ok+MFD: these are almost all material features:
// masterNode.anisotropy
// masterNode.coat
// masterNode.coatNormal
// masterNode.dualSpecularLobe
// masterNode.dualSpecularLobeParametrization
// masterNode.capHazinessWrtMetallic -> not a material feature define, as such, we will create a combined predicate for the HazyGlossMaxDielectricF0 slot dependency
// instead of adding a #define in the template...
// masterNode.iridescence
// masterNode.subsurfaceScattering
// masterNode.transmission
//
// ~~~~ ...ok+MFD: these are all material features
//
// ok masterNode.receiveDecals
// ok masterNode.receiveSSR
// ok masterNode.geometricSpecularAA --> check, a way to combine predicates and/or exclude passes: TODOTODO What about WRITE_NORMAL_BUFFER passes ? (ie smoothness)
// ok masterNode.specularOcclusion --> no use for it though! see comments.
//
// ~~~~ ok+D: these require translation to defines also...
//
// masterNode.anisotropyForAreaLights
// masterNode.recomputeStackPerLight
// masterNode.shadeBaseUsingRefractedAngles
// masterNode.debug
// Inputs: Most inputs don't need a specific predicate in addition to the "present field predicate", ie the $SurfaceDescription.*,
// but in some special cases we check connectivity to avoid processing the default value for nothing...
// (see specular occlusion with _MASKMAP and _BENTNORMALMAP in LitData, or _TANGENTMAP, _BENTNORMALMAP, etc. which act a bit like that
// although they also avoid sampling in that case, but default tiny texture map sampling isn't a big hit since they are all cached once
// a default "unityTexWhite" is sampled, it is cached for everyone defaulting to white...)
//
// ok+ means there's a specific additional predicate
//
// ok masterNode.BaseColorSlotId
// ok masterNode.NormalSlotId
//
// ok+ masterNode.BentNormalSlotId --> Dependency of the predicate on IsSlotConnected avoids processing even if the slots
// ok+ masterNode.TangentSlotId are always there so any pass that declares its use in PixelShaderSlots will have the field in SurfaceDescription,
// but it's not necessarily useful (if slot isnt connected, waste processing on potentially static expressions if
// shader compiler cant optimize...and even then, useless to have static override value for those.)
//
// TODOTODO: Note you could have the same argument for NormalSlot (which we dont exclude with a predicate).
// Also and anyways, the compiler is smart enough not to do the TS to WS matrix multiply on a (0,0,1) vector.
//
// ok+ masterNode.CoatNormalSlotId -> we already have a "material feature" coat normal map so can use that instead, although using that former, we assume the coat normal slot
// will be there, but it's ok, we can #ifdef the code on the material feature define, and use the $SurfaceDescription.CoatNormal predicate
// for the actual assignment,
// although for that one we could again
// use the "connected" condition like for tangent and bentnormal
//
// The following are all ok, no need beyond present field predicate, ie $SurfaceDescription.*,
// except special cases where noted
//
// ok masterNode.SubsurfaceMaskSlotId
// ok masterNode.ThicknessSlotId
// ok masterNode.DiffusionProfileSlotId
// ok masterNode.IridescenceMaskSlotId
// ok masterNode.IridescenceThicknessSlotId
// ok masterNode.SpecularColorSlotId
// ok masterNode.DielectricIorSlotId
// ok masterNode.MetallicSlotId
// ok masterNode.EmissionSlotId
// ok masterNode.SmoothnessASlotId
// ok masterNode.SmoothnessBSlotId
// ok+ masterNode.AmbientOcclusionSlotId -> defined a specific predicate, but not used, see StackLitData.
// ok masterNode.AlphaSlotId
// ok masterNode.AlphaClipThresholdSlotId
// ok masterNode.AnisotropyASlotId
// ok masterNode.AnisotropyBSlotId
// ok masterNode.SpecularAAScreenSpaceVarianceSlotId
// ok masterNode.SpecularAAThresholdSlotId
// ok masterNode.CoatSmoothnessSlotId
// ok masterNode.CoatIorSlotId
// ok masterNode.CoatThicknessSlotId
// ok masterNode.CoatExtinctionSlotId
// ok masterNode.LobeMixSlotId
// ok masterNode.HazinessSlotId
// ok masterNode.HazeExtentSlotId
// ok masterNode.HazyGlossMaxDielectricF0SlotId -> No need for a predicate, the needed predicate is the combined (capHazinessWrtMetallic + HazyGlossMaxDielectricF0)
// "leaking case": if the 2 are true, but we're not in metallic mode, the capHazinessWrtMetallic property is wrong,
// that means the master node is really misconfigured, spew an error, should never happen...
// If it happens, it's because we forgot UpdateNodeAfterDeserialization() call when modifying the capHazinessWrtMetallic or baseParametrization
// properties, maybe through debug etc.
//
// ok masterNode.DistortionSlotId -> Warning: peculiarly, instead of using $SurfaceDescription.Distortion and DistortionBlur,
// ok masterNode.DistortionBlurSlotId we do an #if (SHADERPASS == SHADERPASS_DISTORTION) in the template, instead of
// relying on other passed NOT to include the DistortionSlotId in their PixelShaderSlots!!
// Other to deal with, and
// Common between Lit and StackLit:
//
// doubleSidedMode, alphaTest, receiveDecals,
// surfaceType, alphaMode, blendPreserveSpecular, transparencyFog,
// distortion, distortionMode, distortionDepthTest,
// sortPriority (int)
// geometricSpecularAA, energyConservingSpecular, specularOcclusion
//
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
StackLitMasterNode masterNode = iMasterNode as StackLitMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.doubleSidedMode != DoubleSidedMode.Disabled)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
if (masterNode.doubleSidedMode == DoubleSidedMode.FlippedNormals)
{
activeFields.Add("DoubleSided.Flip");
}
else if (masterNode.doubleSidedMode == DoubleSidedMode.MirroredNormals)
{
activeFields.Add("DoubleSided.Mirror");
}
// Important: the following is used in SharedCode.template.hlsl for determining the normal flip mode
activeFields.Add("FragInputs.isFrontFace");
}
}
if (masterNode.alphaTest.isOn)
{
if (pass.PixelShaderUsesSlot(StackLitMasterNode.AlphaClipThresholdSlotId))
{
activeFields.Add("AlphaTest");
}
}
if (masterNode.surfaceType != SurfaceType.Opaque)
{
activeFields.Add("SurfaceType.Transparent");
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Premultiply)
{
activeFields.Add("BlendMode.Premultiply");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
if (masterNode.blendPreserveSpecular.isOn)
{
activeFields.Add("BlendMode.PreserveSpecular");
}
if (masterNode.transparencyFog.isOn)
{
activeFields.Add("AlphaFog");
}
}
//
// Predicates to change into defines:
//
// Even though we can just always transfer the present (check with $SurfaceDescription.*) fields like specularcolor
// and metallic, we still need to know the baseParametrization in the template to translate into the
// _MATERIAL_FEATURE_SPECULAR_COLOR define:
if (masterNode.baseParametrization == StackLit.BaseParametrization.SpecularColor)
{
activeFields.Add("BaseParametrization.SpecularColor");
}
if (masterNode.energyConservingSpecular.isOn) // No defines, suboption of BaseParametrization.SpecularColor
{
activeFields.Add("EnergyConservingSpecular");
}
if (masterNode.anisotropy.isOn)
{
activeFields.Add("Material.Anisotropy");
}
if (masterNode.coat.isOn)
{
activeFields.Add("Material.Coat");
}
if (masterNode.coatNormal.isOn)
{
activeFields.Add("Material.CoatNormal");
}
if (masterNode.dualSpecularLobe.isOn)
{
activeFields.Add("Material.DualSpecularLobe");
if (masterNode.dualSpecularLobeParametrization == StackLit.DualSpecularLobeParametrization.HazyGloss)
{
activeFields.Add("DualSpecularLobeParametrization.HazyGloss");
// Option for baseParametrization == Metallic && DualSpecularLobeParametrization == HazyGloss:
if (masterNode.capHazinessWrtMetallic.isOn)
{
// assert metallic, but masternode should deal with having a consistent
// property config with UpdateNodeAfterDeserialization() etc.
if (pass.PixelShaderUsesSlot(StackLitMasterNode.HazyGlossMaxDielectricF0SlotId))
{
// Again we assume masternode has HazyGlossMaxDielectricF0 which should always be the case
// if capHazinessWrtMetallic.isOn.
activeFields.Add("CapHazinessIfNotMetallic");
}
}
}
}
if (masterNode.iridescence.isOn)
{
activeFields.Add("Material.Iridescence");
}
if (masterNode.subsurfaceScattering.isOn && masterNode.surfaceType != SurfaceType.Transparent)
{
activeFields.Add("Material.SubsurfaceScattering");
}
if (masterNode.transmission.isOn)
{
activeFields.Add("Material.Transmission");
}
// Advanced:
if (masterNode.anisotropyForAreaLights.isOn)
{
activeFields.Add("AnisotropyForAreaLights");
}
if (masterNode.recomputeStackPerLight.isOn)
{
activeFields.Add("RecomputeStackPerLight");
}
if (masterNode.shadeBaseUsingRefractedAngles.isOn)
{
activeFields.Add("ShadeBaseUsingRefractedAngles");
}
if (masterNode.debug.isOn)
{
activeFields.Add("StackLitDebug");
}
//
// Other property predicates:
//
if (!masterNode.receiveDecals.isOn)
{
activeFields.Add("DisableDecals");
}
if (!masterNode.receiveSSR.isOn)
{
activeFields.Add("DisableSSR");
}
// Note here we combine an "enable"-like predicate and the $SurfaceDescription.(slotname) predicate
// into a single $GeometricSpecularAA pedicate.
//
// ($SurfaceDescription.* predicates are useful to make sure the field is present in the struct in the template.
// The field will be present if both the master node and pass have the slotid, see this set intersection we make
// in GenerateSurfaceDescriptionStruct(), with HDSubShaderUtilities.FindMaterialSlotsOnNode().)
//
// Normally, since the feature enable adds the required slots, only the $SurfaceDescription.* would be required,
// but some passes might not need it and not declare the PixelShaderSlot, or, inversely, the pass might not
// declare it as a way to avoid it.
//
// IE this has also the side effect to disable geometricSpecularAA - even if "on" - for passes that don't explicitly
// advertise these slots(eg for a general feature, with separate "enable" and "field present" predicates, the
// template could take a default value and process it anyway if a feature is "on").
//
// (Note we can achieve the same results in the template on just single predicates by making defines out of them,
// and using #if defined() && etc)
bool haveSomeSpecularAA = false; // TODOTODO in prevision of normal texture filtering
if (masterNode.geometricSpecularAA.isOn &&
pass.PixelShaderUsesSlot(StackLitMasterNode.SpecularAAThresholdSlotId) &&
pass.PixelShaderUsesSlot(StackLitMasterNode.SpecularAAScreenSpaceVarianceSlotId))
{
haveSomeSpecularAA = true;
activeFields.Add("GeometricSpecularAA");
}
if (haveSomeSpecularAA)
{
activeFields.Add("SpecularAA");
}
if (masterNode.specularOcclusion.isOn)
{
// We don't optimize based eg on baked ambient occlusion missing a texture, this makes this baked, data-based
// SpecularOcclusion a waste (non baked, SSAO-based SpecularOcclusion is always applied with the TriACE trick),
// but the user should know better.
// TODOTODO: rename the UI to "baked specular occlusion" and "baked AO" ?
activeFields.Add("SpecularOcclusion");
}
//
// Input special-casing predicates:
//
if (masterNode.IsSlotConnected(StackLitMasterNode.BentNormalSlotId) && pass.PixelShaderUsesSlot(StackLitMasterNode.BentNormalSlotId))
{
activeFields.Add("BentNormal");
}
if (masterNode.IsSlotConnected(StackLitMasterNode.TangentSlotId) && pass.PixelShaderUsesSlot(StackLitMasterNode.TangentSlotId))
{
activeFields.Add("Tangent");
}
// The following idiom enables an optimization on feature ports that don't have an enable switch in the settings
// view, where the default value might not produce a visual result and incur a processing cost we want to avoid.
// For ambient occlusion, this is the case for the SpecularOcclusion calculations which also depend on it,
// where a value of 1 will produce no results.
// See SpecularOcclusion, we don't optimize out this case...
if (pass.PixelShaderUsesSlot(StackLitMasterNode.AmbientOcclusionSlotId))
{
bool connected = masterNode.IsSlotConnected(StackLitMasterNode.AmbientOcclusionSlotId);
var ambientOcclusionSlot = masterNode.FindSlot <Vector1MaterialSlot>(StackLitMasterNode.AmbientOcclusionSlotId);
// master node always has it, assert ambientOcclusionSlot != null
if (connected || ambientOcclusionSlot.value != ambientOcclusionSlot.defaultValue)
{
activeFields.Add("AmbientOcclusion");
}
}
if (masterNode.IsSlotConnected(StackLitMasterNode.CoatNormalSlotId) && pass.PixelShaderUsesSlot(StackLitMasterNode.CoatNormalSlotId))
{
activeFields.Add("CoatNormal");
}
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(AbstractMaterialNode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
HDUnlitMasterNode masterNode = iMasterNode as HDUnlitMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.alphaTest.isOn && pass.PixelShaderUsesSlot(HDUnlitMasterNode.AlphaThresholdSlotId))
{
activeFields.Add("AlphaTest");
}
if (masterNode.surfaceType != SurfaceType.Opaque)
{
activeFields.Add("SurfaceType.Transparent");
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Premultiply)
{
activeFields.Add("BlendMode.Premultiply");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
if (masterNode.transparencyFog.isOn)
{
activeFields.Add("AlphaFog");
}
}
return(activeFields);
}
private static bool GenerateShaderPass(PBRMasterNode masterNode, Pass pass, GenerationMode mode, SurfaceMaterialOptions materialOptions, ShaderGenerator result)
{
var templateLocation = Path.Combine(Path.Combine(Path.Combine(HDEditorUtils.GetHDRenderPipelinePath(), "Editor"), "ShaderGraph"), pass.TemplateName);
if (!File.Exists(templateLocation))
{
// TODO: produce error here
return(false);
}
// grab all of the active nodes
var activeNodeList = ListPool <INode> .Get();
NodeUtils.DepthFirstCollectNodesFromNode(activeNodeList, masterNode, NodeUtils.IncludeSelf.Include, pass.PixelShaderSlots);
// graph requirements describe what the graph itself requires
var graphRequirements = ShaderGraphRequirements.FromNodes(activeNodeList, ShaderStageCapability.Fragment);
ShaderStringBuilder graphNodeFunctions = new ShaderStringBuilder();
graphNodeFunctions.IncreaseIndent();
var functionRegistry = new FunctionRegistry(graphNodeFunctions);
// Build the list of active slots based on what the pass requires
// TODO: this can be a shared function -- From here through GraphUtil.GenerateSurfaceDescription(..)
var activeSlots = new List <MaterialSlot>();
foreach (var id in pass.PixelShaderSlots)
{
MaterialSlot slot = masterNode.FindSlot <MaterialSlot>(id);
if (slot != null)
{
activeSlots.Add(slot);
}
}
// build the graph outputs structure to hold the results of each active slots (and fill out activeFields to indicate they are active)
string graphInputStructName = "SurfaceDescriptionInputs";
string graphOutputStructName = "SurfaceDescription";
string graphEvalFunctionName = "SurfaceDescriptionFunction";
ShaderStringBuilder graphEvalFunction = new ShaderStringBuilder();
ShaderStringBuilder graphOutputs = new ShaderStringBuilder();
PropertyCollector graphProperties = new PropertyCollector();
// build the graph outputs structure, and populate activeFields with the fields of that structure
HashSet <string> activeFields = new HashSet <string>();
GraphUtil.GenerateSurfaceDescriptionStruct(graphOutputs, activeSlots, true);
//GraphUtil.GenerateSurfaceDescriptionStruct(graphOutputs, activeSlots, true, graphOutputStructName, activeFields);
// Build the graph evaluation code, to evaluate the specified slots
GraphUtil.GenerateSurfaceDescriptionFunction(
activeNodeList,
masterNode,
masterNode.owner as AbstractMaterialGraph,
graphEvalFunction,
functionRegistry,
graphProperties,
graphRequirements, // TODO : REMOVE UNUSED
mode,
graphEvalFunctionName,
graphOutputStructName,
null,
activeSlots,
graphInputStructName);
var blendCode = new ShaderStringBuilder();
var cullCode = new ShaderStringBuilder();
var zTestCode = new ShaderStringBuilder();
var zWriteCode = new ShaderStringBuilder();
var stencilCode = new ShaderStringBuilder();
var colorMaskCode = new ShaderStringBuilder();
HDSubShaderUtilities.BuildRenderStatesFromPassAndMaterialOptions(pass, materialOptions, blendCode, cullCode, zTestCode, zWriteCode, stencilCode, colorMaskCode);
if (masterNode.twoSided.isOn)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
activeFields.Add("DoubleSided.Mirror"); // TODO: change this depending on what kind of normal flip you want..
activeFields.Add("FragInputs.isFrontFace"); // will need this for determining normal flip mode
}
}
if (pass.PixelShaderSlots != null)
{
foreach (var slotId in pass.PixelShaderSlots)
{
var slot = masterNode.FindSlot <MaterialSlot>(slotId);
if (slot != null)
{
var rawSlotName = slot.RawDisplayName().ToString();
var descriptionVar = string.Format("{0}.{1}", graphOutputStructName, rawSlotName);
activeFields.Add(descriptionVar);
}
}
}
var packedInterpolatorCode = new ShaderGenerator();
var graphInputs = new ShaderGenerator();
HDRPShaderStructs.Generate(
packedInterpolatorCode,
graphInputs,
graphRequirements,
pass.RequiredFields,
CoordinateSpace.World,
activeFields);
// debug output all active fields
var interpolatorDefines = new ShaderGenerator();
{
interpolatorDefines.AddShaderChunk("// ACTIVE FIELDS:");
foreach (string f in activeFields)
{
interpolatorDefines.AddShaderChunk("// " + f);
}
}
ShaderGenerator defines = new ShaderGenerator();
{
defines.AddShaderChunk(string.Format("#define SHADERPASS {0}", pass.ShaderPassName), true);
if (pass.ExtraDefines != null)
{
foreach (var define in pass.ExtraDefines)
{
defines.AddShaderChunk(define);
}
}
defines.AddGenerator(interpolatorDefines);
}
var shaderPassIncludes = new ShaderGenerator();
if (pass.Includes != null)
{
foreach (var include in pass.Includes)
{
shaderPassIncludes.AddShaderChunk(include);
}
}
// build graph code
var graph = new ShaderGenerator();
graph.AddShaderChunk("// Graph Inputs");
graph.Indent();
graph.AddGenerator(graphInputs);
graph.Deindent();
graph.AddShaderChunk("// Graph Outputs");
graph.Indent();
graph.AddShaderChunk(graphOutputs.ToString());
//graph.AddGenerator(graphOutputs);
graph.Deindent();
graph.AddShaderChunk("// Graph Properties (uniform inputs)");
graph.AddShaderChunk(graphProperties.GetPropertiesDeclaration(1));
graph.AddShaderChunk("// Graph Node Functions");
graph.AddShaderChunk(graphNodeFunctions.ToString());
graph.AddShaderChunk("// Graph Evaluation");
graph.Indent();
graph.AddShaderChunk(graphEvalFunction.ToString());
//graph.AddGenerator(graphEvalFunction);
graph.Deindent();
// build the hash table of all named fragments TODO: could make this Dictionary<string, ShaderGenerator / string> ?
Dictionary <string, string> namedFragments = new Dictionary <string, string>();
namedFragments.Add("${Defines}", defines.GetShaderString(2, false));
namedFragments.Add("${Graph}", graph.GetShaderString(2, false));
namedFragments.Add("${LightMode}", pass.LightMode);
namedFragments.Add("${PassName}", pass.Name);
namedFragments.Add("${Includes}", shaderPassIncludes.GetShaderString(2, false));
namedFragments.Add("${InterpolatorPacking}", packedInterpolatorCode.GetShaderString(2, false));
namedFragments.Add("${Blending}", blendCode.ToString());
namedFragments.Add("${Culling}", cullCode.ToString());
namedFragments.Add("${ZTest}", zTestCode.ToString());
namedFragments.Add("${ZWrite}", zWriteCode.ToString());
namedFragments.Add("${Stencil}", stencilCode.ToString());
namedFragments.Add("${ColorMask}", colorMaskCode.ToString());
namedFragments.Add("${LOD}", materialOptions.lod.ToString());
namedFragments.Add("${VariantDefines}", GetVariantDefines(masterNode));
// process the template to generate the shader code for this pass TODO: could make this a shared function
string[] templateLines = File.ReadAllLines(templateLocation);
System.Text.StringBuilder builder = new System.Text.StringBuilder();
foreach (string line in templateLines)
{
ShaderSpliceUtil.PreprocessShaderCode(line, activeFields, namedFragments, builder);
builder.AppendLine();
}
result.AddShaderChunk(builder.ToString(), false);
return(true);
}
private static void AddPixelShaderSlotsForWriteNormalBufferPasses(StackLitMasterNode masterNode, ref Pass pass)
{
// See StackLit.hlsl:ConvertSurfaceDataToNormalData()
// Note: We remove the slots we're adding as the editor will constantly regenerate the shader but
// without recreating the nodes thus the passes in the subshader object.
if (masterNode.coat.isOn)
{
// Check ConvertSurfaceDataToNormalData, in this case, we only need those:
pass.PixelShaderSlots.Remove(StackLitMasterNode.CoatSmoothnessSlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.CoatSmoothnessSlotId);
pass.PixelShaderSlots.Remove(StackLitMasterNode.CoatNormalSlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.CoatNormalSlotId);
}
else
{
pass.PixelShaderSlots.Remove(StackLitMasterNode.NormalSlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.NormalSlotId);
pass.PixelShaderSlots.Remove(StackLitMasterNode.LobeMixSlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.LobeMixSlotId);
pass.PixelShaderSlots.Remove(StackLitMasterNode.SmoothnessASlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.SmoothnessASlotId);
pass.PixelShaderSlots.Remove(StackLitMasterNode.SmoothnessBSlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.SmoothnessBSlotId);
}
// Also, when geometricSpecularAA.isOn, might want to add SpecularAAScreenSpaceVarianceSlotId and SpecularAAThresholdSlotId,
// since they affect smoothnesses in surfaceData directly. This is an implicit behavior for Lit, via the GBuffer pass.
// Versus performance, might not be important for what it is used for, but SSR uses the roughness too so for now,
// add them.
if (masterNode.geometricSpecularAA.isOn) // TODOTODO || Normal Map Filtering is on
{
pass.PixelShaderSlots.Remove(StackLitMasterNode.SpecularAAScreenSpaceVarianceSlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.SpecularAAScreenSpaceVarianceSlotId);
pass.PixelShaderSlots.Remove(StackLitMasterNode.SpecularAAThresholdSlotId);
pass.PixelShaderSlots.Add(StackLitMasterNode.SpecularAAThresholdSlotId);
}
}
private static bool GenerateShaderPassLit(AbstractMaterialNode masterNode, Pass pass, GenerationMode mode, SurfaceMaterialOptions materialOptions, ShaderGenerator result, List <string> sourceAssetDependencyPaths)
{
var templateLocation = Path.Combine(Path.Combine(Path.Combine(HDEditorUtils.GetHDRenderPipelinePath(), "Editor"), "ShaderGraph"), pass.TemplateName);
if (!File.Exists(templateLocation))
{
// TODO: produce error here
return(false);
}
if (sourceAssetDependencyPaths != null)
{
sourceAssetDependencyPaths.Add(templateLocation);
}
// grab all of the active nodes (for pixel and vertex graphs)
var vertexNodes = ListPool <INode> .Get();
NodeUtils.DepthFirstCollectNodesFromNode(vertexNodes, masterNode, NodeUtils.IncludeSelf.Include, pass.VertexShaderSlots);
var pixelNodes = ListPool <INode> .Get();
NodeUtils.DepthFirstCollectNodesFromNode(pixelNodes, masterNode, NodeUtils.IncludeSelf.Include, pass.PixelShaderSlots);
// graph requirements describe what the graph itself requires
var pixelRequirements = ShaderGraphRequirements.FromNodes(pixelNodes, ShaderStageCapability.Fragment, false); // TODO: is ShaderStageCapability.Fragment correct?
var vertexRequirements = ShaderGraphRequirements.FromNodes(vertexNodes, ShaderStageCapability.Vertex, false);
// Function Registry tracks functions to remove duplicates, it wraps a string builder that stores the combined function string
ShaderStringBuilder graphNodeFunctions = new ShaderStringBuilder();
graphNodeFunctions.IncreaseIndent();
var functionRegistry = new FunctionRegistry(graphNodeFunctions);
// TODO: this can be a shared function for all HDRP master nodes -- From here through GraphUtil.GenerateSurfaceDescription(..)
// Build the list of active slots based on what the pass requires
var pixelSlots = HDSubShaderUtilities.FindMaterialSlotsOnNode(pass.PixelShaderSlots, masterNode);
var vertexSlots = HDSubShaderUtilities.FindMaterialSlotsOnNode(pass.VertexShaderSlots, masterNode);
// properties used by either pixel and vertex shader
PropertyCollector sharedProperties = new PropertyCollector();
// build the graph outputs structure to hold the results of each active slots (and fill out activeFields to indicate they are active)
string pixelGraphInputStructName = "SurfaceDescriptionInputs";
string pixelGraphOutputStructName = "SurfaceDescription";
string pixelGraphEvalFunctionName = "SurfaceDescriptionFunction";
ShaderStringBuilder pixelGraphEvalFunction = new ShaderStringBuilder();
ShaderStringBuilder pixelGraphOutputs = new ShaderStringBuilder();
// dependency tracker -- set of active fields
HashSet <string> activeFields = GetActiveFieldsFromMasterNode(masterNode, pass);
// build initial requirements
HDRPShaderStructs.AddActiveFieldsFromPixelGraphRequirements(activeFields, pixelRequirements);
// build the graph outputs structure, and populate activeFields with the fields of that structure
GraphUtil.GenerateSurfaceDescriptionStruct(pixelGraphOutputs, pixelSlots, true, pixelGraphOutputStructName, activeFields);
// Build the graph evaluation code, to evaluate the specified slots
GraphUtil.GenerateSurfaceDescriptionFunction(
pixelNodes,
masterNode,
masterNode.owner as AbstractMaterialGraph,
pixelGraphEvalFunction,
functionRegistry,
sharedProperties,
pixelRequirements, // TODO : REMOVE UNUSED
mode,
pixelGraphEvalFunctionName,
pixelGraphOutputStructName,
null,
pixelSlots,
pixelGraphInputStructName);
string vertexGraphInputStructName = "VertexDescriptionInputs";
string vertexGraphOutputStructName = "VertexDescription";
string vertexGraphEvalFunctionName = "VertexDescriptionFunction";
ShaderStringBuilder vertexGraphEvalFunction = new ShaderStringBuilder();
ShaderStringBuilder vertexGraphOutputs = new ShaderStringBuilder();
// check for vertex animation -- enables HAVE_VERTEX_MODIFICATION
bool vertexActive = false;
if (masterNode.IsSlotConnected(PBRMasterNode.PositionSlotId))
{
vertexActive = true;
activeFields.Add("features.modifyMesh");
HDRPShaderStructs.AddActiveFieldsFromVertexGraphRequirements(activeFields, vertexRequirements);
// -------------------------------------
// Generate Output structure for Vertex Description function
GraphUtil.GenerateVertexDescriptionStruct(vertexGraphOutputs, vertexSlots, vertexGraphOutputStructName, activeFields);
// -------------------------------------
// Generate Vertex Description function
GraphUtil.GenerateVertexDescriptionFunction(
masterNode.owner as AbstractMaterialGraph,
vertexGraphEvalFunction,
functionRegistry,
sharedProperties,
mode,
vertexNodes,
vertexSlots,
vertexGraphInputStructName,
vertexGraphEvalFunctionName,
vertexGraphOutputStructName);
}
var blendCode = new ShaderStringBuilder();
var cullCode = new ShaderStringBuilder();
var zTestCode = new ShaderStringBuilder();
var zWriteCode = new ShaderStringBuilder();
var stencilCode = new ShaderStringBuilder();
var colorMaskCode = new ShaderStringBuilder();
HDSubShaderUtilities.BuildRenderStatesFromPassAndMaterialOptions(pass, materialOptions, blendCode, cullCode, zTestCode, zWriteCode, stencilCode, colorMaskCode);
HDRPShaderStructs.AddRequiredFields(pass.RequiredFields, activeFields);
// apply dependencies to the active fields, and build interpolators (TODO: split this function)
var packedInterpolatorCode = new ShaderGenerator();
HDRPShaderStructs.Generate(
packedInterpolatorCode,
activeFields);
// debug output all active fields
var interpolatorDefines = new ShaderGenerator();
{
interpolatorDefines.AddShaderChunk("// ACTIVE FIELDS:");
foreach (string f in activeFields)
{
interpolatorDefines.AddShaderChunk("// " + f);
}
}
// build graph inputs structures
ShaderGenerator pixelGraphInputs = new ShaderGenerator();
ShaderSpliceUtil.BuildType(typeof(HDRPShaderStructs.SurfaceDescriptionInputs), activeFields, pixelGraphInputs);
ShaderGenerator vertexGraphInputs = new ShaderGenerator();
ShaderSpliceUtil.BuildType(typeof(HDRPShaderStructs.VertexDescriptionInputs), activeFields, vertexGraphInputs);
ShaderGenerator defines = new ShaderGenerator();
{
defines.AddShaderChunk(string.Format("#define SHADERPASS {0}", pass.ShaderPassName), true);
if (pass.ExtraDefines != null)
{
foreach (var define in pass.ExtraDefines)
{
defines.AddShaderChunk(define);
}
}
defines.AddGenerator(interpolatorDefines);
}
var shaderPassIncludes = new ShaderGenerator();
if (pass.Includes != null)
{
foreach (var include in pass.Includes)
{
shaderPassIncludes.AddShaderChunk(include);
}
}
// build graph code
var graph = new ShaderGenerator();
{
graph.AddShaderChunk("// Shared Graph Properties (uniform inputs)");
graph.AddShaderChunk(sharedProperties.GetPropertiesDeclaration(1));
if (vertexActive)
{
graph.AddShaderChunk("// Vertex Graph Inputs");
graph.Indent();
graph.AddGenerator(vertexGraphInputs);
graph.Deindent();
graph.AddShaderChunk("// Vertex Graph Outputs");
graph.Indent();
graph.AddShaderChunk(vertexGraphOutputs.ToString());
graph.Deindent();
}
graph.AddShaderChunk("// Pixel Graph Inputs");
graph.Indent();
graph.AddGenerator(pixelGraphInputs);
graph.Deindent();
graph.AddShaderChunk("// Pixel Graph Outputs");
graph.Indent();
graph.AddShaderChunk(pixelGraphOutputs.ToString());
graph.Deindent();
graph.AddShaderChunk("// Shared Graph Node Functions");
graph.AddShaderChunk(graphNodeFunctions.ToString());
if (vertexActive)
{
graph.AddShaderChunk("// Vertex Graph Evaluation");
graph.Indent();
graph.AddShaderChunk(vertexGraphEvalFunction.ToString());
graph.Deindent();
}
graph.AddShaderChunk("// Pixel Graph Evaluation");
graph.Indent();
graph.AddShaderChunk(pixelGraphEvalFunction.ToString());
graph.Deindent();
}
// build the hash table of all named fragments TODO: could make this Dictionary<string, ShaderGenerator / string> ?
Dictionary <string, string> namedFragments = new Dictionary <string, string>();
namedFragments.Add("${Defines}", defines.GetShaderString(2, false));
namedFragments.Add("${Graph}", graph.GetShaderString(2, false));
namedFragments.Add("${LightMode}", pass.LightMode);
namedFragments.Add("${PassName}", pass.Name);
namedFragments.Add("${Includes}", shaderPassIncludes.GetShaderString(2, false));
namedFragments.Add("${InterpolatorPacking}", packedInterpolatorCode.GetShaderString(2, false));
namedFragments.Add("${Blending}", blendCode.ToString());
namedFragments.Add("${Culling}", cullCode.ToString());
namedFragments.Add("${ZTest}", zTestCode.ToString());
namedFragments.Add("${ZWrite}", zWriteCode.ToString());
namedFragments.Add("${Stencil}", stencilCode.ToString());
namedFragments.Add("${ColorMask}", colorMaskCode.ToString());
namedFragments.Add("${LOD}", materialOptions.lod.ToString());
// process the template to generate the shader code for this pass TODO: could make this a shared function
string[] templateLines = File.ReadAllLines(templateLocation);
System.Text.StringBuilder builder = new System.Text.StringBuilder();
foreach (string line in templateLines)
{
ShaderSpliceUtil.PreprocessShaderCode(line, activeFields, namedFragments, builder);
builder.AppendLine();
}
result.AddShaderChunk(builder.ToString(), false);
return(true);
}
public static void GetBlendMode(ShaderGraph.SurfaceType surfaceType, AlphaMode alphaMode, ref Pass pass)
{
if (surfaceType == ShaderGraph.SurfaceType.Opaque)
{
pass.BlendOverride = "Blend One Zero, One Zero";
}
else
{
switch (alphaMode)
{
case AlphaMode.Alpha:
pass.BlendOverride = "Blend One OneMinusSrcAlpha, One OneMinusSrcAlpha";
break;
case AlphaMode.Additive:
pass.BlendOverride = "Blend One One, One One";
break;
case AlphaMode.Premultiply:
pass.BlendOverride = "Blend One OneMinusSrcAlpha, One OneMinusSrcAlpha";
break;
// This isn't supported in HDRP.
case AlphaMode.Multiply:
default:
pass.BlendOverride = "Blend One OneMinusSrcAlpha, One OneMinusSrcAlpha";
break;
}
}
}
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
PBRMasterNode masterNode = iMasterNode as PBRMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.twoSided.isOn)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
activeFields.Add("DoubleSided.Mirror"); // TODO: change this depending on what kind of normal flip you want..
activeFields.Add("FragInputs.isFrontFace"); // will need this for determining normal flip mode
}
}
switch (masterNode.model)
{
case PBRMasterNode.Model.Metallic:
break;
case PBRMasterNode.Model.Specular:
activeFields.Add("Material.SpecularColor");
break;
default:
// TODO: error!
break;
}
float constantAlpha = 0.0f;
if (masterNode.IsSlotConnected(PBRMasterNode.AlphaThresholdSlotId) ||
(float.TryParse(masterNode.GetSlotValue(PBRMasterNode.AlphaThresholdSlotId, GenerationMode.ForReals), out constantAlpha) && (constantAlpha > 0.0f)))
{
activeFields.Add("AlphaTest");
}
// if (kTesselationMode != TessellationMode.None)
// {
// defines.AddShaderChunk("#define _TESSELLATION_PHONG 1", true);
// }
// #pragma shader_feature _ _VERTEX_DISPLACEMENT _PIXEL_DISPLACEMENT
// switch (kDisplacementMode)
// {
// case DisplacementMode.None:
// break;
// case DisplacementMode.Vertex:
// defines.AddShaderChunk("#define _VERTEX_DISPLACEMENT 1", true);
// break;
// case DisplacementMode.Pixel:
// defines.AddShaderChunk("#define _PIXEL_DISPLACEMENT 1", true);
// Depth offset is only enabled if per pixel displacement is
// if (kDepthOffsetEnable)
// {
// // #pragma shader_feature _DEPTHOFFSET_ON
// defines.AddShaderChunk("#define _DEPTHOFFSET_ON 1", true);
// }
// break;
// case DisplacementMode.Tessellation:
// if (kTessellationEnabled)
// {
// defines.AddShaderChunk("#define _TESSELLATION_DISPLACEMENT 1", true);
// }
// break;
// }
// #pragma shader_feature _VERTEX_DISPLACEMENT_LOCK_OBJECT_SCALE
// #pragma shader_feature _DISPLACEMENT_LOCK_TILING_SCALE
// #pragma shader_feature _PIXEL_DISPLACEMENT_LOCK_OBJECT_SCALE
// #pragma shader_feature _VERTEX_WIND
// #pragma shader_feature _ _REFRACTION_PLANE _REFRACTION_SPHERE
//
// #pragma shader_feature _ _MAPPING_PLANAR _MAPPING_TRIPLANAR // MOVE to a node
// #pragma shader_feature _NORMALMAP_TANGENT_SPACE
// #pragma shader_feature _ _REQUIRE_UV2 _REQUIRE_UV3
// #pragma shader_feature _MASKMAP
// #pragma shader_feature _BENTNORMALMAP
// #pragma shader_feature _EMISSIVE_COLOR_MAP
// #pragma shader_feature _ENABLESPECULAROCCLUSION
// #pragma shader_feature _HEIGHTMAP
// #pragma shader_feature _TANGENTMAP
// #pragma shader_feature _ANISOTROPYMAP
// #pragma shader_feature _SUBSURFACE_RADIUS_MAP
// #pragma shader_feature _THICKNESSMAP
// #pragma shader_feature _SPECULARCOLORMAP
// #pragma shader_feature _TRANSMITTANCECOLORMAP
// Keywords for transparent
// #pragma shader_feature _SURFACE_TYPE_TRANSPARENT
if (masterNode.surfaceType != SurfaceType.Opaque)
{
// transparent-only defines
activeFields.Add("SurfaceType.Transparent");
// #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
// else if (masterNode.alphaMode == PBRMasterNode.AlphaMode.PremultiplyAlpha) // TODO
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRE_MULTIPLY 1", true);
// }
// #pragma shader_feature _BLENDMODE_PRESERVE_SPECULAR_LIGHTING
// if (kEnableBlendModePreserveSpecularLighting)
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRESERVE_SPECULAR_LIGHTING 1", true);
// }
// #pragma shader_feature _ENABLE_FOG_ON_TRANSPARENT
// if (kEnableFogOnTransparent)
// {
// defines.AddShaderChunk("#define _ENABLE_FOG_ON_TRANSPARENT 1", true);
// }
}
else
{
// opaque-only defines
}
// enable dithering LOD crossfade
// #pragma multi_compile _ LOD_FADE_CROSSFADE
// TODO: We should have this keyword only if VelocityInGBuffer is enable, how to do that ?
//#pragma multi_compile VELOCITYOUTPUT_OFF VELOCITYOUTPUT_ON
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(AbstractMaterialNode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
FabricMasterNode masterNode = iMasterNode as FabricMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.doubleSidedMode != DoubleSidedMode.Disabled)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
if (masterNode.doubleSidedMode == DoubleSidedMode.FlippedNormals)
{
activeFields.Add("DoubleSided.Flip");
}
else if (masterNode.doubleSidedMode == DoubleSidedMode.MirroredNormals)
{
activeFields.Add("DoubleSided.Mirror");
}
// Important: the following is used in SharedCode.template.hlsl for determining the normal flip mode
activeFields.Add("FragInputs.isFrontFace");
}
}
switch (masterNode.materialType)
{
case FabricMasterNode.MaterialType.CottonWool:
activeFields.Add("Material.CottonWool");
break;
case FabricMasterNode.MaterialType.Silk:
activeFields.Add("Material.Silk");
break;
default:
UnityEngine.Debug.LogError("Unknown material type: " + masterNode.materialType);
break;
}
if (masterNode.alphaTest.isOn)
{
if (pass.PixelShaderUsesSlot(FabricMasterNode.AlphaClipThresholdSlotId))
{
activeFields.Add("AlphaTest");
}
}
if (masterNode.surfaceType != SurfaceType.Opaque)
{
activeFields.Add("SurfaceType.Transparent");
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Premultiply)
{
activeFields.Add("BlendMode.Premultiply");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
if (masterNode.blendPreserveSpecular.isOn)
{
activeFields.Add("BlendMode.PreserveSpecular");
}
if (masterNode.transparencyFog.isOn)
{
activeFields.Add("AlphaFog");
}
}
if (!masterNode.receiveDecals.isOn)
{
activeFields.Add("DisableDecals");
}
if (!masterNode.receiveSSR.isOn)
{
activeFields.Add("DisableSSR");
}
if (masterNode.energyConservingSpecular.isOn)
{
activeFields.Add("Specular.EnergyConserving");
}
if (masterNode.transmission.isOn)
{
activeFields.Add("Material.Transmission");
}
if (masterNode.subsurfaceScattering.isOn && masterNode.surfaceType != SurfaceType.Transparent)
{
activeFields.Add("Material.SubsurfaceScattering");
}
if (masterNode.IsSlotConnected(FabricMasterNode.BentNormalSlotId) && pass.PixelShaderUsesSlot(FabricMasterNode.BentNormalSlotId))
{
activeFields.Add("BentNormal");
}
if (masterNode.IsSlotConnected(FabricMasterNode.TangentSlotId) && pass.PixelShaderUsesSlot(FabricMasterNode.TangentSlotId))
{
activeFields.Add("Tangent");
}
switch (masterNode.specularOcclusionMode)
{
case SpecularOcclusionMode.Off:
break;
case SpecularOcclusionMode.FromAO:
activeFields.Add("SpecularOcclusionFromAO");
break;
case SpecularOcclusionMode.FromAOAndBentNormal:
activeFields.Add("SpecularOcclusionFromAOBentNormal");
break;
case SpecularOcclusionMode.Custom:
activeFields.Add("SpecularOcclusionCustom");
break;
default:
break;
}
if (pass.PixelShaderUsesSlot(FabricMasterNode.AmbientOcclusionSlotId))
{
var occlusionSlot = masterNode.FindSlot <Vector1MaterialSlot>(FabricMasterNode.AmbientOcclusionSlotId);
bool connected = masterNode.IsSlotConnected(FabricMasterNode.AmbientOcclusionSlotId);
if (connected || occlusionSlot.value != occlusionSlot.defaultValue)
{
activeFields.Add("AmbientOcclusion");
}
}
if (masterNode.IsSlotConnected(FabricMasterNode.LightingSlotId) && pass.PixelShaderUsesSlot(FabricMasterNode.LightingSlotId))
{
activeFields.Add("LightingGI");
}
if (masterNode.IsSlotConnected(FabricMasterNode.BackLightingSlotId) && pass.PixelShaderUsesSlot(FabricMasterNode.BackLightingSlotId))
{
activeFields.Add("BackLightingGI");
}
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
PBRMasterNode masterNode = iMasterNode as PBRMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.twoSided.isOn)
{
activeFields.Add("DoubleSided");
if (pass.ShaderPassName != "SHADERPASS_VELOCITY") // HACK to get around lack of a good interpolator dependency system
{ // we need to be able to build interpolators using multiple input structs
// also: should only require isFrontFace if Normals are required...
activeFields.Add("DoubleSided.Mirror"); // TODO: change this depending on what kind of normal flip you want..
activeFields.Add("FragInputs.isFrontFace"); // will need this for determining normal flip mode
}
}
switch (masterNode.model)
{
case PBRMasterNode.Model.Metallic:
break;
case PBRMasterNode.Model.Specular:
activeFields.Add("Material.SpecularColor");
break;
default:
// TODO: error!
break;
}
if (masterNode.IsSlotConnected(PBRMasterNode.AlphaThresholdSlotId) ||
masterNode.GetInputSlots <Vector1MaterialSlot>().First(x => x.id == PBRMasterNode.AlphaThresholdSlotId).value > 0.0f)
{
activeFields.Add("AlphaTest");
}
if (masterNode.surfaceType != SurfaceType.Opaque)
{
activeFields.Add("SurfaceType.Transparent");
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
// By default PBR node will take the fog
activeFields.Add("AlphaFog");
}
else
{
// opaque-only defines
}
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(INode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
UnlitMasterNode masterNode = iMasterNode as UnlitMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.IsSlotConnected(UnlitMasterNode.AlphaThresholdSlotId) ||
masterNode.GetInputSlots <Vector1MaterialSlot>().First(x => x.id == UnlitMasterNode.AlphaThresholdSlotId).value > 0.0f)
{
activeFields.Add("AlphaTest");
}
// Keywords for transparent
// #pragma shader_feature _SURFACE_TYPE_TRANSPARENT
if (masterNode.surfaceType != SurfaceType.Opaque)
{
// transparent-only defines
activeFields.Add("SurfaceType.Transparent");
// #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY
if (masterNode.alphaMode == AlphaMode.Alpha)
{
activeFields.Add("BlendMode.Alpha");
}
else if (masterNode.alphaMode == AlphaMode.Additive)
{
activeFields.Add("BlendMode.Add");
}
// else if (masterNode.alphaMode == UnlitMasterNode.AlphaMode.PremultiplyAlpha) // TODO
// {
// defines.AddShaderChunk("#define _BLENDMODE_PRE_MULTIPLY 1", true);
// }
}
else
{
// opaque-only defines
}
// enable dithering LOD crossfade
// #pragma multi_compile _ LOD_FADE_CROSSFADE
// TODO: We should have this keyword only if VelocityInGBuffer is enable, how to do that ?
//#pragma multi_compile VELOCITYOUTPUT_OFF VELOCITYOUTPUT_ON
return(activeFields);
}
private static HashSet <string> GetActiveFieldsFromMasterNode(AbstractMaterialNode iMasterNode, Pass pass)
{
HashSet <string> activeFields = new HashSet <string>();
HDUnlitMasterNode masterNode = iMasterNode as HDUnlitMasterNode;
if (masterNode == null)
{
return(activeFields);
}
if (masterNode.alphaTest.isOn && pass.PixelShaderUsesSlot(HDUnlitMasterNode.AlphaThresholdSlotId))
{
activeFields.Add("AlphaTest");
}
if (masterNode.surfaceType != SurfaceType.Opaque)
{
if (masterNode.transparencyFog.isOn)
{
activeFields.Add("AlphaFog");
}
}
if (masterNode.addPrecomputedVelocity.isOn)
{
activeFields.Add("AddPrecomputedVelocity");
}
return(activeFields);
}