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Add refract tests (#306)
This PR adds tests for the refract function. Adds float16 and float32 test files. Fixes #191
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‎test/Feature/HLSLLib/refract.16.test

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#--- source.hlsl
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// This test tests three different refraction scenarios
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// One in 2D, 3D, and 4D
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StructuredBuffer<half2> IncidentRay2D : register(t0);
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StructuredBuffer<half4> IncidentRay3D : register(t1);
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StructuredBuffer<half4> IncidentRay4D : register(t2);
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StructuredBuffer<half2> Wall2D : register(t3);
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StructuredBuffer<half4> Wall3D : register(t4);
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StructuredBuffer<half4> Wall4D : register(t5);
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RWStructuredBuffer<half2> Result2D : register(u6);
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RWStructuredBuffer<half4> Result3D : register(u7);
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RWStructuredBuffer<half4> Result4D : register(u8);
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[numthreads(1,1,1)]
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void main() {
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// 2D case
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half2 result2D = refract(IncidentRay2D[0], normalize(Wall2D[0]), 0.5);
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Result2D[0] = result2D;
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half2 result2D_constant = refract(half2(0.75, -0.5), half2(0.70710677, 0.70710677), half(0.5));
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Result2D[1] = result2D_constant;
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// the below case is a case of total internal reflection, the 0 vector is expected
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Result2D[2] = refract(half2(0.75, -0.5), half2(0.70710677, 0.70710677), 1.3);
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// 3D case, using half4 for alignment
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half4 result3D = half4(refract(IncidentRay3D[0].xyz, normalize(Wall3D[0].xyz), 0.5), half(0.0));
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Result3D[0] = result3D;
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half4 result3D_constant = half4(refract(half3(0.5, -0.25, 0.75), half3(0.5, 0.5, 0.70710677), 0.5), half(0.0));
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Result3D[1] = result3D_constant;
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// 4D case
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half4 result4D = refract(IncidentRay4D[0].xyzw, normalize(Wall4D[0].xyzw), 0.5);
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Result4D[0] = result4D;
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half4 result4D_constant = refract(half4(0.5, -0.25, 0.75, -0.5), half4(0.5, 0.5, 0.5, 0.5), half(0.5));
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Result4D[1] = result4D_constant;
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}
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//--- pipeline.yaml
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---
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Shaders:
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- Stage: Compute
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Entry: main
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DispatchSize: [1, 1, 1]
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Buffers:
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- Name: IncidentRay2D
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Format: Float16
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Stride: 4
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Data: [ 0x3a00, 0xb800 ]
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- Name: IncidentRay3D
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Format: Float16
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Stride: 8
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Data: [ 0x3800, 0xb400, 0x3a00, 0x0 ]
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# 0.5, -0.25, 0.75, 0.0
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- Name: IncidentRay4D
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Format: Float16
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Stride: 8
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Data: [ 0x3800, 0xb400, 0x3a00, 0xb800]
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# 0.5, -0.25, 0.75, -0.5
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- Name: Wall2D
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Format: Float16
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Stride: 4
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Data: [ 0x39a8, 0x39a8 ]
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# 0.70703125, 0.70703125
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- Name: Wall3D
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Format: Float16
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Stride: 8
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Data: [ 0x3800, 0x3800, 0x39a8, 0x0 ]
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# 0.5, 0.5, 0.70703125, 0.0
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- Name: Wall4D
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Format: Float16
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Stride: 8
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Data: [ 0x3800, 0x3800, 0x3800, 0x3800 ]
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# 0.5, 0.5, 0.5, 0.5
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- Name: Result2D
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Format: Float16
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Stride: 4
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ZeroInitSize: 16
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- Name: ExpectedResult2D
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Format: Float16
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Stride: 4
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Data: [ 0xb4d9, 0xbb6d, 0xb4d9, 0xbb6d, 0x0, 0x0, 0x0, 0x0 ]
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# -0.30297852, -0.92822266, -0.30297852, -0.92822266, 0.0, 0.0, 0.0, 0.0,
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- Name: Result3D
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Format: Float16
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Stride: 8
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ZeroInitSize: 16
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- Name: ExpectedResult3D
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Format: Float16
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Stride: 8
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Data: [ 0xb607, 0xba04, 0xb817, 0x0, 0xb607, 0xba04, 0xb817, 0x0 ]
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# -0.37670898, -0.7519531, 0.51123047, 0.0, -0.37670898, -0.7519531, 0.51123047, 0.0
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- Name: Result4D
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Format: Float16
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Stride: 8
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ZeroInitSize: 16
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- Name: ExpectedResult4D
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Format: Float16
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Stride: 8
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Data: [ 0xb400, 0xb900, 0xb000, 0xba00, 0xb400, 0xb900, 0xb000, 0xba00 ]
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# -0.25, -0.625, -0.125, -0.75, -0.25, -0.625, -0.125, -0.75
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Results:
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- Result: CheckResult2D
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Rule: BufferFloatULP
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ULPT: 2
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Actual: Result2D
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Expected: ExpectedResult2D
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- Result: CheckResult3D
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Rule: BufferFloatULP
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ULPT: 2
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Actual: Result3D
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Expected: ExpectedResult3D
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- Result: CheckResult4D
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Rule: BufferFloatULP
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ULPT: 2
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Actual: Result4D
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Expected: ExpectedResult4D
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DescriptorSets:
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- Resources:
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- Name: IncidentRay2D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 0
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Space: 0
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VulkanBinding:
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Binding: 0
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- Name: IncidentRay3D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 1
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Space: 0
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VulkanBinding:
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Binding: 1
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- Name: IncidentRay4D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 2
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Space: 0
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VulkanBinding:
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Binding: 2
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- Name: Wall2D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 3
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Space: 0
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VulkanBinding:
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Binding: 3
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- Name: Wall3D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 4
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Space: 0
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VulkanBinding:
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Binding: 4
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- Name: Wall4D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 5
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Space: 0
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VulkanBinding:
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Binding: 5
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- Name: Result2D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 6
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Space: 0
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VulkanBinding:
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Binding: 6
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- Name: Result3D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 7
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Space: 0
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VulkanBinding:
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Binding: 7
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- Name: Result4D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 8
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Space: 0
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VulkanBinding:
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Binding: 8
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...
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#--- end
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# REQUIRES: Half
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# RUN: split-file %s %t
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# RUN: %dxc_target -T cs_6_5 -enable-16bit-types -Fo %t.o %t/source.hlsl
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# RUN: %offloader %t/pipeline.yaml %t.o

‎test/Feature/HLSLLib/refract.32.test

Lines changed: 183 additions & 0 deletions
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#--- source.hlsl
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// This test tests three different refraction scenarios
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// One in 2D, 3D, and 4D
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StructuredBuffer<float2> IncidentRay2D : register(t0);
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StructuredBuffer<float4> IncidentRay3D : register(t1);
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StructuredBuffer<float4> IncidentRay4D : register(t2);
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StructuredBuffer<float2> Wall2D : register(t3);
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StructuredBuffer<float4> Wall3D : register(t4);
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StructuredBuffer<float4> Wall4D : register(t5);
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RWStructuredBuffer<float2> Result2D : register(u6);
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RWStructuredBuffer<float4> Result3D : register(u7);
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RWStructuredBuffer<float4> Result4D : register(u8);
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[numthreads(1,1,1)]
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void main() {
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// 2D case
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float2 result2D = refract(IncidentRay2D[0], normalize(Wall2D[0]), 0.5);
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Result2D[0] = result2D;
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float2 result2D_constant = refract(float2(0.75, -0.5), float2(0.70710677, 0.70710677), 0.5);
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Result2D[1] = result2D_constant;
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// the below case is a case of total internal reflection, the 0 vector is expected
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Result2D[2] = refract(float2(0.75, -0.5), float2(0.70710677, 0.70710677), 1.3);
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// 3D case, using float4 for alignment
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float4 result3D = float4(refract(IncidentRay3D[0].xyz, normalize(Wall3D[0].xyz), 0.5), 0.0);
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Result3D[0] = result3D;
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float4 result3D_constant = float4(refract(float3(0.5, -0.25, 0.75), float3(0.5, 0.5, 0.70710677), 0.5), 0.0);
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Result3D[1] = result3D_constant;
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// 4D case
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float4 result4D = refract(IncidentRay4D[0].xyzw, normalize(Wall4D[0].xyzw), 0.5);
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Result4D[0] = result4D;
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float4 result4D_constant = refract(float4(0.5, -0.25, 0.75, -0.5), float4(0.5, 0.5, 0.5, 0.5), 0.5);
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Result4D[1] = result4D_constant;
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}
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//--- pipeline.yaml
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---
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Shaders:
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- Stage: Compute
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Entry: main
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DispatchSize: [1, 1, 1]
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Buffers:
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- Name: IncidentRay2D
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Format: Float32
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Stride: 8
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Data: [ 0.75, -0.5 ]
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- Name: IncidentRay3D
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Format: Float32
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Stride: 16
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Data: [ 0.5, -0.25, 0.75, 0.0 ]
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- Name: IncidentRay4D
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Format: Float32
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Stride: 16
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Data: [ 0.5, -0.25, 0.75, -0.5 ]
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- Name: Wall2D
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Format: Float32
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Stride: 8
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Data: [ 0.70710677, 0.70710677 ]
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- Name: Wall3D
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Format: Float32
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Stride: 16
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Data: [ 0.5, 0.5, 0.70710677, 0.0 ]
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- Name: Wall4D
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Format: Float32
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Stride: 16
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Data: [ 0.5, 0.5, 0.5, 0.5 ]
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- Name: Result2D
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Format: Float32
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Stride: 8
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ZeroInitSize: 32
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- Name: ExpectedResult2D
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Format: Float32
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Stride: 8
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Data: [ -0.303054, -0.928054, -0.303054, -0.928054, 0.0, 0.0, 0.0, 0.0 ]
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- Name: Result3D
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Format: Float32
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Stride: 16
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ZeroInitSize: 32
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- Name: ExpectedResult3D
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Format: Float32
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Stride: 16
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Data: [ -0.376802, -0.751802, -0.511432, 0.0, -0.376802, -0.751802, -0.511432, 0.0 ]
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- Name: Result4D
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Format: Float32
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Stride: 16
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ZeroInitSize: 32
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- Name: ExpectedResult4D
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Format: Float32
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Stride: 16
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Data: [ -0.25, -0.625, -0.125, -0.75, -0.25, -0.625, -0.125, -0.75 ]
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Results:
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- Result: CheckResult2D
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Rule: BufferFloatULP
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ULPT: 40
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Actual: Result2D
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Expected: ExpectedResult2D
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- Result: CheckResult3D
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Rule: BufferFloatULP
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ULPT: 40
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Actual: Result3D
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Expected: ExpectedResult3D
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- Result: CheckResult4D
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Rule: BufferFloatULP
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ULPT: 40
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Actual: Result4D
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Expected: ExpectedResult4D
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DescriptorSets:
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- Resources:
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- Name: IncidentRay2D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 0
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Space: 0
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VulkanBinding:
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Binding: 0
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- Name: IncidentRay3D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 1
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Space: 0
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VulkanBinding:
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Binding: 1
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- Name: IncidentRay4D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 2
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Space: 0
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VulkanBinding:
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Binding: 2
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- Name: Wall2D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 3
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Space: 0
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VulkanBinding:
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Binding: 3
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- Name: Wall3D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 4
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Space: 0
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VulkanBinding:
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Binding: 4
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- Name: Wall4D
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Kind: StructuredBuffer
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DirectXBinding:
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Register: 5
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Space: 0
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VulkanBinding:
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Binding: 5
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- Name: Result2D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 6
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Space: 0
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VulkanBinding:
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Binding: 6
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- Name: Result3D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 7
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Space: 0
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VulkanBinding:
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Binding: 7
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- Name: Result4D
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Kind: RWStructuredBuffer
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DirectXBinding:
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Register: 8
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Space: 0
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VulkanBinding:
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Binding: 8
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...
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#--- end
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# RUN: split-file %s %t
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# RUN: %dxc_target -T cs_6_5 -Fo %t.o %t/source.hlsl
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# RUN: %offloader %t/pipeline.yaml %t.o

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