DoMaterialAttributeReorder(&PixelDepthOffset, Ar.UE4Ver()); DoMaterialAttributeReorder(&Tangent, Ar.UE4Ver()); DoMaterialAttributeReorder(&Anisotropy, Ar.UE4Ver()); static_assert(MP_MAX == 30, "New material properties must have DoMaterialAttributesReorder called on them to ensure that any future reordering of property pins is correctly applied.");
同、3490行目付近
FExpressionInput* UMaterial::GetExpressionInputForProperty(EMaterialProperty InProperty) ... case MP_PixelDepthOffset: return &PixelDepthOffset; case MP_Tangent: return &Tangent; case MP_Anisotropy: return &Anisotropy;
同、3800行目付近
int32 UMaterial::CompilePropertyEx( FMaterialCompiler* Compiler, EMaterialProperty Property ) ... case MP_PixelDepthOffset: return PixelDepthOffset.CompileWithDefault(Compiler, Property); case MP_Tangent: return Tangent.CompileWithDefault(Compiler, Property); case MP_Anisotropy: return Anisotropy.CompileWithDefault(Compiler, Property);
同、4110行目付近
case MP_PixelDepthOffset: Active = !IsTranslucentBlendMode((EBlendMode)BlendMode); break; case MP_Tangent: case MP_Anisotropy: Active = ShadingModel == MSM_Anisotropy; break;
int32 UMaterialExpressionMakeMaterialAttributes::Compile(class FMaterialCompiler* Compiler, int32 OutputIndex, int32 MultiplexIndex) ... static_assert(MP_MAX == 30, "New material properties should be added to the end of the inputs for this expression. \ The order of properties here should match the material results pins, the make material attriubtes node inputs and the mapping of IO indices to properties in GetMaterialPropertyFromInputOutputIndex().\ Insertions into the middle of the properties or a change in the order of properties will also require that existing data is fixed up in DoMaterialAttriubtesReorder().\ ");
EMaterialProperty Property = GetMaterialPropertyFromInputOutputIndex(MultiplexIndex); switch (Property) .... case MP_PixelDepthOffset: Ret = PixelDepthOffset.Compile(Compiler); Expression = PixelDepthOffset.Expression; break; case MP_Tangent: Ret = Tangent.Compile(Compiler); Expression = Tangent.Expression; break; case MP_Anisotropy: Ret = Anisotropy.Compile(Compiler); Expression = Anisotropy.Expression; break; };
同、3320行目付近
UMaterialExpressionBreakMaterialAttributes::UMaterialExpressionBreakMaterialAttributes(const FObjectInitializer& ObjectInitializer) ... static_assert(MP_MAX == 30, "New material properties should be added to the end of the outputs for this expression. \ The order of properties here should match the material results pins, the make material attriubtes node inputs and the mapping of IO indices to properties in GetMaterialPropertyFromInputOutputIndex().\ Insertions into the middle of the properties or a change in the order of properties will also require that existing data is fixed up in DoMaterialAttriubtesReorder().\ ");
EMaterialValueType GetMaterialPropertyType(EMaterialProperty Property) ... case MP_PixelDepthOffset: return MCT_Float; case MP_Tangent: return MCT_Float3; case MP_Anisotropy: return MCT_Float; };
同、2170行目付近
const TMap CreatePropertyToIOIndexMap() ... static_assert(MP_MAX == 30, "New material properties should be added to the end of \"real\" properties in this map. Immediately before MP_MaterialAttributes . \ The order of properties here should match the material results pins, the inputs to MakeMaterialAttriubtes and the outputs of BreakMaterialAttriubtes.\ Insertions into the middle of the properties or a change in the order of properties will also require that existing data is fixed up in DoMaterialAttriubtesReorder().\ ");
... Ret.Add(MP_PixelDepthOffset, 24); Ret.Add(MP_Tangent, 25); Ret.Add(MP_Anisotropy, 26); //^^^^ New properties go above here ^^^^
#if FEATURE_LEVEL >= FEATURE_LEVEL_SM4 // ES2 will rely on only the final normalize for performance TangentTangent = normalize(TangentTangent); #endif
// normalizing after the tangent space to world space conversion improves quality with sheared bases (UV layout to WS causes shrearing) Parameters.WorldTangent = normalize(TransformTangentVectorToWorld(Parameters.TangentToWorld, TangentTangent)); #else Parameters.WorldNormal = normalize(TangentTangent); #endif }
// @param DiffSpecMask .r: diffuse, .g:specular e.g. float2(1,1) for both, float2(1,0) for diffuse only float3 SurfaceShading( FGBufferData GBuffer, float3 LobeRoughness, float3 LobeEnergy, float3 L, float3 V, half3 N, float2 DiffSpecMask ) ... case SHADINGMODELID_CLEAR_COAT: // this path does not support DiffSpecMask yet return ClearCoatShading( GBuffer, LobeRoughness, LobeEnergy, L, V, N ); case SHADINGMODELID_ANISOTROPY: return GGXAnisoShading( GBuffer, LobeRoughness, LobeEnergy, L, V, N, DiffSpecMask);
