prototype for spirv linking

funnyassets/shaders/mesh_trace.shader

@@ -3,12 +3,12 @@
 
 struct MeshPayload
 {
-	float3 m_vColor;
 }
 struct RayPayload
 {
 	float3 m_vOrigin;
 	float3 m_vDirection;
+	float3 m_vColor;
 };
 
 RAY
@@ -23,9 +23,8 @@ RAY
 	void rayMain()
 	{
 		RayPayload p = {};
-		RunShaderResult_t<MeshPayload> m = RunShader<MeshPayload, RayPayload>(0, p);
-		m.val.m_vColor;
-		printf("%f\n", m.val.m_vColor.x);
+		CallShader<RayPayload>(0, p);
+		printf("%f\n", p.m_vColor.x);
 		
 	/*
 		uint2 pixel = DispatchRaysIndex().xy;