4 files changed, 142 insertions, 0 deletions
diff --git a/tests/compute/generic-interface-method-simple.slang b/tests/compute/generic-interface-method-simple.slang
new file mode 100644
index 000000000..7ba129492
--- /dev/null
+++ b/tests/compute/generic-interface-method-simple.slang
@@ -0,0 +1,48 @@
+//TEST(compute):COMPARE_COMPUTE:-xslang -use-ir
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):dxbinding(0),glbinding(0),out
+
+RWStructuredBuffer<float> outputBuffer;
+
+interface IVertexInterpolant
+{
+    float2 getUV();
+}
+
+interface IBRDFPattern
+{
+    __generic<TVertexInterpolant:IVertexInterpolant>
+    float evalPattern(TVertexInterpolant interpolants);
+}
+
+struct StandardVertexInterpolant : IVertexInterpolant
+{
+    float2 getUV() { return float2(0.5); }
+};
+
+struct MaterialPattern1 : IBRDFPattern
+{
+    float base;
+    __generic<TVertexInterpolant:IVertexInterpolant>
+    float evalPattern(TVertexInterpolant interpolants)
+    {
+        float rs = base + interpolants.getUV().x;
+        return rs;
+    }
+};
+
+__generic<TPattern : IBRDFPattern, TInterpolant: IVertexInterpolant>
+float test(TPattern pattern, TInterpolant vertInterps)
+{
+    float rs = pattern.evalPattern<TInterpolant>(vertInterps);    
+    return rs;
+}
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    StandardVertexInterpolant vertInterp;
+    MaterialPattern1 mp1;
+    mp1.base = 0.5;
+	float outVal = test<MaterialPattern1, StandardVertexInterpolant>(mp1, vertInterp);
+	outputBuffer[dispatchThreadID.x] = outVal;
+}
+\ No newline at end of file
diff --git a/tests/compute/generic-interface-method-simple.slang.expected.txt b/tests/compute/generic-interface-method-simple.slang.expected.txt
new file mode 100644
index 000000000..e143b7f20
--- /dev/null
+++ b/tests/compute/generic-interface-method-simple.slang.expected.txt
@@ -0,0 +1,4 @@
+3F800000
+3F800000
+3F800000
+3F800000
+\ No newline at end of file
diff --git a/tests/compute/generic-interface-method.slang b/tests/compute/generic-interface-method.slang
new file mode 100644
index 000000000..e4fa8cff5
--- /dev/null
+++ b/tests/compute/generic-interface-method.slang
@@ -0,0 +1,86 @@
+//TEST(compute):COMPARE_COMPUTE:-xslang -use-ir
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):dxbinding(0),glbinding(0),out
+
+RWStructuredBuffer<float> outputBuffer;
+
+struct DisneyBRDFPattern
+{
+    float3 baseColor;
+    float3 normal;
+    float specular, metallic, roughness;
+    float opacity;
+    float3 emmissive;
+    float ambientOcclusion;  
+};
+
+struct VertexPosition
+{
+    float3 pos;
+    float3 normal;
+    float2 uv;
+};
+
+struct CameraView
+{
+    float3 camPos;
+    float3 camDir;
+};
+
+interface IVertexInterpolant
+{
+    float4 getVertexColor(int index);
+    int getVertexColorCount();
+    float2 getUV(int index);
+    int getUVCount();
+}
+
+interface IDisneyBRDFPattern
+{
+    __generic<TVertexInterpolant:IVertexInterpolant>
+    DisneyBRDFPattern evalPattern(
+        CameraView cam, 
+        VertexPosition vWorld,  
+        VertexPosition vObject, 
+        TVertexInterpolant interpolants);
+}
+
+struct StandardVertexInterpolant : IVertexInterpolant
+{
+    float4 getVertexColor(int index) { return float4(0.0); }
+    int getVertexColorCount() { return 0;}
+    float2 getUV(int index) { return float2(0.0); }
+    int getUVCount() {return 1; }
+};
+
+struct MaterialPattern1 : IDisneyBRDFPattern
+{
+    __generic<TVertexInterpolant:IVertexInterpolant>
+    DisneyBRDFPattern evalPattern(
+        CameraView cam, 
+        VertexPosition vWorld,  
+        VertexPosition vObject, 
+        TVertexInterpolant interpolants)
+    {
+        DisneyBRDFPattern rs;
+        rs.baseColor = float3(0.5);
+        rs.opacity = 1.0;
+        return rs;
+    }
+};
+
+__generic<TVertexInterpolant:IVertexInterpolant, TPattern : IDisneyBRDFPattern>
+float test(TVertexInterpolant vertInterps, TPattern pattern)
+{
+    CameraView cam;
+    VertexPosition vW, vO;
+    DisneyBRDFPattern rs = pattern.evalPattern(cam, vW, vO, vertInterps);    
+    return rs.baseColor.x;
+}
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    StandardVertexInterpolant vertInterp;
+    MaterialPattern1 mp1;
+	float outVal = test<StandardVertexInterpolant, MaterialPattern1>(vertInterp, mp1);
+	outputBuffer[dispatchThreadID.x] = outVal;
+}
+\ No newline at end of file
diff --git a/tests/compute/generic-interface-method.slang.expected.txt b/tests/compute/generic-interface-method.slang.expected.txt
new file mode 100644
index 000000000..e4e4c642a
--- /dev/null
+++ b/tests/compute/generic-interface-method.slang.expected.txt
@@ -0,0 +1,4 @@
+3F000000
+3F000000
+3F000000
+3F000000