its running i think

res/shaders/lib/MaterialParameter.slang

@@ -9,3 +9,8 @@ struct MaterialParameter
 	float3 viewDir_TS;
 }
 
+struct VertexAttributes
+{
+	MaterialParameter parameter : PARAMETER;
+	float4 clipPosition: SV_POSITION;
+};

res/shaders/lib/SkinnedMeshVertexData.slang

@@ -2,36 +2,6 @@ import VertexData;
 import Common;
 import Scene;
 
-struct SkinnedMeshVertexAttributes : VertexAttributes
-{
-	float4 clipPosition: SV_Position;
-	float3 worldPosition: POSITION0;
-	float2 texCoords: TEXCOORD0;
-	float3 normal: NORMAL0;
-	float3 tangent: TANGENT0;
-	float3 biTangent: BITANGENT0;
-	float3 getWorldPosition()
-	{
-		return worldPosition;
-	}
-	float2 getTexCoords()
-	{
-		return texCoords;
-	}
-	float3 getNormal()
-	{
-		return normal;
-	}
-	float3 getTangent()
-	{
-		return tangent;
-	}
-	float3 getBiTangent()
-	{
-		return biTangent;
-	}
-}
-
 struct SkinnedMeshVertexData : VertexData
 {
 	SkinnedMeshVertexAttributes getAttributes(uint index, float4x4 transform)

res/shaders/lib/StaticMeshVertexData.slang

@@ -2,45 +2,24 @@ import Common;
 import VertexData;
 import MaterialParameter;
 
-struct StaticMeshVertexAttributes : IVertexAttributes
-{
-	float4 clipPosition: SV_Position;
-	float3 worldPosition: POSITION0;
-	float2 texCoords: TEXCOORD0;
-	float3 normal: NORMAL0;
-	float3 tangent: TANGENT0;
-	float3 biTangent: BITANGENT0;
-	
-	MaterialParameter create()
-	{
-		MaterialParameter result;
-		result.worldPosition = worldPosition;
-		result.texCoords = texCoords;
-		result.normal = normal;
-		result.tangent = tangent;
-		result.biTangent = biTangent;
-		return result;
-	}
-
-};
-
 struct StaticMeshVertexData : IVertexData
 {
-	typedef StaticMeshVertexAttributes VertexAttributes;
-	StaticMeshVertexAttributes getAttributes(uint index, float4x4 transform)
+	VertexAttributes getAttributes(uint index, float4x4 transform)
 	{
-		StaticMeshVertexAttributes attr;
+		VertexAttributes attributes;
+		MaterialParameter params;
 		float4 localPos = float4(positions[index], 1);
 		float4 worldPos = mul(transform, localPos);
 		float4 viewPos = mul(pViewParams.viewMatrix, worldPos);
 		float4 clipPos = mul(pViewParams.projectionMatrix, viewPos);
-		attr.clipPosition = clipPos;
-		attr.worldPosition = worldPos.xyz;
-		attr.texCoords = texCoords[index];
-		attr.normal = normals[index];
-		attr.tangent = tangents[index];
-		attr.biTangent = biTangents[index];
-		return attr;
+		params.worldPosition = worldPos.xyz;
+		params.texCoords = texCoords[index];
+		params.normal = normals[index];
+		params.tangent = tangents[index];
+		params.biTangent = biTangents[index];
+		attributes.parameter = params;
+		attributes.clipPosition = clipPos;
+		return attributes;
 	}
 	StructuredBuffer<float3> positions;
 	StructuredBuffer<float2> texCoords;

res/shaders/lib/VertexData.slang

@@ -1,13 +1,7 @@
 import MaterialParameter;
 
-interface IVertexAttributes
-{
-	MaterialParameter create();
-};
-
 interface IVertexData
 {
-	associatedtype VertexAttributes : IVertexAttributes;
 	VertexAttributes getAttributes(uint index, float4x4 transform);
 };
 ParameterBlock<IVertexData> pVertexData;