Fix -Game no matieral error

Source/UShaderLabBuilder/Private/ShaderLabIntrinsicRegistry.cpp

@@ -0,0 +1,68 @@
+// Copyright UShaderLab. All Rights Reserved.
+
+#include "ShaderLabIntrinsicRegistry.h"
+
+#include "ShaderLabIntrinsics.h"
+
+void ShaderLabIntrinsic_Private::AddSimple(
+	FShaderLabIntrinsicRegistry& Registry,
+	const TCHAR* Name,
+	EShaderLabIntrinsicFrequency Frequency,
+	const TCHAR* ReturnType,
+	TFunction<UMaterialExpression*(UMaterial&)> Make,
+	int32 OutputIndex)
+{
+	FShaderLabIntrinsicDesc Desc;
+	Desc.Name = FName(Name);
+	Desc.Frequency = Frequency;
+	Desc.ReturnType = ReturnType;
+	Desc.OutputIndex = OutputIndex;
+	Desc.MakeNode = [Make = MoveTemp(Make)](UMaterial& M, const TArray<FString>&, FString&) { return Make(M); };
+	Registry.Register(MoveTemp(Desc));
+}
+
+FShaderLabIntrinsicRegistry& FShaderLabIntrinsicRegistry::Get()
+{
+	static FShaderLabIntrinsicRegistry Instance;
+	return Instance;
+}
+
+FShaderLabIntrinsicRegistry::FShaderLabIntrinsicRegistry()
+{
+	RegisterBuiltins();
+}
+
+void FShaderLabIntrinsicRegistry::Register(FShaderLabIntrinsicDesc Desc)
+{
+	check(!Desc.Name.IsNone());
+	check(Desc.MakeNode);
+	// Contract: every intrinsic is IDE-describable so ShaderLab.IDE.Prepare can always emit a stub.
+	check(!Desc.ReturnType.IsEmpty());
+	Descs.Add(Desc.Name, MoveTemp(Desc));
+}
+
+const FShaderLabIntrinsicDesc* FShaderLabIntrinsicRegistry::Find(FName Name) const
+{
+	return Descs.Find(Name);
+}
+
+void FShaderLabIntrinsicRegistry::ForEach(TFunctionRef<void(const FShaderLabIntrinsicDesc&)> Fn) const
+{
+	for (const TPair<FName, FShaderLabIntrinsicDesc>& Pair : Descs)
+	{
+		Fn(Pair.Value);
+	}
+}
+
+void FShaderLabIntrinsicRegistry::RegisterBuiltins()
+{
+	RegisterMeshIntrinsics(*this);
+	RegisterViewIntrinsics(*this);
+	RegisterObjectIntrinsics(*this);
+	RegisterInstancingIntrinsics(*this);
+	RegisterTimeIntrinsics(*this);
+	RegisterParticleIntrinsics(*this);
+	RegisterDecalIntrinsics(*this);
+	RegisterAtmosphereIntrinsics(*this);
+	RegisterDistanceFieldIntrinsics(*this);
+}