its running i think

res/shaders/BasePass.slang

@@ -14,9 +14,8 @@ struct LightCullingData
 ParameterBlock<LightCullingData> pLightCullingData;
 
 [shader("pixel")]
-void pixelMain(in VertexAttributes attribs, out float4 baseColor)
+void pixelMain(in MaterialParameter params : PARAMETER, out float4 baseColor)
 {
-    MaterialParameter params = attribs.create();
 	BRDF brdf = pMaterial.prepare(params);
     float3 result = float3(0, 0, 0);
     for(int i = 0; i < pLightEnv.numDirectionalLights; ++i)

res/shaders/LegacyBasePass.slang

@@ -1,4 +1,5 @@
 import VertexData;
+import MaterialParameter;
 
 struct InstanceData
 {
@@ -13,11 +14,11 @@ struct Scene
 ParameterBlock<Scene> pScene;
 
 [shader("vertex")]
-IVertexAttributes vertexMain(	
+VertexAttributes vertexMain(	
 	uint vertexId: SV_VertexID,
 	uint instanceId: SV_InstanceID,
 ){
 	InstanceData inst = pScene.instances[instanceId];
-	IVertexAttributes attr = pVertexData.getAttributes(vertexId, inst.transformMatrix);
+	VertexAttributes attr = pVertexData.getAttributes(vertexId, inst.transformMatrix);
 	return attr;
 }

res/shaders/MeshletBasePass.slang

@@ -61,7 +61,7 @@ void taskMain(
 	DispatchMesh(head, 1, 1, p);
 }
 
-groupshared IVertexAttributes gs_vertices[MAX_VERTICES];
+groupshared VertexAttributes gs_vertices[MAX_VERTICES];
 groupshared uint3 gs_indices[MAX_PRIMITIVES];
 groupshared uint gs_numVertices;
 groupshared uint gs_numPrimitives;
@@ -78,7 +78,7 @@ void meshMain(
 	in uint threadID: SV_GroupIndex,
 	in uint groupID: SV_GroupID,
 	in payload MeshPayload meshPayload,
-	out Vertices<IVertexAttributes, MAX_VERTICES> vertices, 
+	out Vertices<VertexAttributes, MAX_VERTICES> vertices, 
 	out Indices<uint3, MAX_PRIMITIVES> indices
 ){
 	InstanceData inst = pScene.instances[meshPayload.instanceId[groupID]];

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;