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| -rw-r--r-- | tests/compute/shaderlib.slang | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/tests/compute/shaderlib.slang b/tests/compute/shaderlib.slang deleted file mode 100644 index fdcce8552..000000000 --- a/tests/compute/shaderlib.slang +++ /dev/null @@ -1,196 +0,0 @@ -//TEST(compute):COMPARE_COMPUTE:-xslang -use-ir -//TEST_INPUT:Texture2D(size=4, content = one) : dxbinding(0),glbinding(0) -//TEST_INPUT: Sampler : dxbinding(0),glbinding(0,1,2,3,4,5,6) -//TEST_INPUT: ubuffer(data=[0 0 0 0], stride=4):dxbinding(0),glbinding(0),out -struct SurfacePosition -{ - float3 position; - float3 normal; - float2 uv; - float3 color; -}; -struct LightSample -{ - float3 direction; - float3 intensity; -}; -interface ILight -{ - int getSampleCount(SurfacePosition pos); - LightSample getSample(SurfacePosition pos, int n, int i); -} - -struct View -{ - float3 cameraPos; - float3 cameraDir; - float2 viewportSize; - float4x4 viewTransform, projectionTransform, worldTransform, - viewProjTransform, invViewTransform, invWorldTransform; - SamplerState samplerState; -}; - -interface IBRDFEvaluator -{ - associatedtype SurfaceProperty; - SurfaceProperty evalSurfaceProperty(SurfacePosition pos, View view); - float3 evalLighting(SurfaceProperty surf, LightSample lightSample); - float getOpacity(); -} - -interface IMaterial -{ - associatedtype BRDFEvaluator : IBRDFEvaluator; - BRDFEvaluator evalPattern(View view, SurfacePosition surf); -} - -struct DirectionalLight : ILight -{ - float3 direction; - float3 intensity; - int getSampleCount(SurfacePosition pos) - { - return 1; - } - LightSample getSample(int n, int i) - { - LightSample ls; - ls.direction = direction; - ls.intensity = intensity; - return ls; - } -}; - -float3 EnvBRDFApprox( float3 SpecularColor, float Roughness, float NoV ) -{ - float4 c0 = float4(-1, -0.0275, -0.572, 0.022); - float4 c1 = float4(1, 0.0425, 1.04, -0.04); - float4 r = Roughness * c0 + c1; - float a004 = min( r.x * r.x, exp2( -9.28 * NoV ) ) * r.x + r.y; - float2 AB = float2( -1.04, 1.04 ) * a004 + r.zw; - AB.y *= min(50.0 * SpecularColor.g, 1.0); - return SpecularColor * AB.x + AB.y; -} - -float PhongApprox(float Roughness, float RoL) -{ - float a = Roughness * Roughness; - a = max(a, 0.008); - float a2 = a * a; - float rcp_a2 = 1.0/(a2); - float c = 0.72134752 * rcp_a2 + 0.39674113; - float p = rcp_a2 * exp2(c * RoL - c); - // Total 7 instr - return min(p, rcp_a2); -} - -struct DisneyBRDFSurfaceProperty -{ - float3 diffuseColor; - float3 fspecularColor; - float3 R; -}; - -struct DisneyBRDFEvaluator : IBRDFEvaluator -{ - float3 baseColor; - float3 normal; - float3 emissive; - float roughness, metallic, specular, opacity; - - typedef DisneyBRDFSurfaceProperty SurfaceProperty; - - DisneyBRDFSurfaceProperty evalSurfaceProperty(SurfacePosition pos, View view) - { - DisneyBRDFSurfaceProperty rs; - float3 viewDir = normalize(pos.position - view.cameraPos); - rs.diffuseColor = baseColor * (1.0-metallic); - float dielectricSpecluar = 0.02 * specular; - float3 specularColor = float3(dielectricSpecluar - dielectricSpecluar * metallic) - + baseColor * metallic; - float NoV = max(dot(normal, viewDir), 0.0); - rs.fspecularColor = EnvBRDFApprox(specularColor, roughness, NoV); - rs.R = reflect(-viewDir, normal); - return rs; - } - - float3 evalLighting(DisneyBRDFSurfaceProperty surf, LightSample lightSample) - { - float RoL = max(0, dot(surf.R, lightSample.direction)); - float dotNL = clamp(dot(normal, lightSample.direction), 0.01, 0.99); - float3 color = lightSample.intensity.xyz * dotNL * - (surf.diffuseColor + surf.fspecularColor * PhongApprox(roughness, RoL)) + emissive; - return color; - } - - float getOpacity() - { - return opacity; - } -}; - -struct DisneyMaterial0 : IMaterial -{ - typedef DisneyBRDFEvaluator BRDFEvaluator; - Texture2D diffuseMap; - DisneyBRDFEvaluator evalPattern(View view, SurfacePosition surf) - { - DisneyBRDFEvaluator rs; - rs.baseColor = diffuseMap.Sample(view.samplerState, surf.uv).xyz; - rs.normal = float3(0.0, 1.0, 0.0); - rs.emissive = float3(0.0); - rs.roughness = 1.0; - rs.metallic = 0.0; - rs.specular = 1.0; - rs.opacity = 0.5; - return rs; - } -}; - -__generic<TMaterial : IMaterial, TLight : ILight> -float4 computeShading(View view, SurfacePosition surfPos, TMaterial mat, TLight light) -{ - TMaterial.BRDFEvaluator brdf = mat.evalPattern(view, surfPos); - int lightSampleCount = light.getSampleCount(surfPos); - float3 color = 0; - TMaterial.BRDFEvaluator.SurfaceProperty surfProp = brdf.evalSurfaceProperty(surfPos, view); - for (int i = 0; i < lightSampleCount; i++) - { - color += brdf.evalLighting(surfProp, light.getSample(surfPos, lightSampleCount, i)); - } - return float4(color, brdf.getOpacity()); -} - -Texture2D diffuseMap; -SamplerState samplerState; -RWStructuredBuffer<float> outputBuffer; - -[numthreads(1, 1, 1)] -void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID) -{ - View view; - view.cameraPos = 0.0; - view.cameraDir = float3(0.0, 0.0, -1.0); - view.viewportSize = float2(1920.0, 1080.0); - view.samplerState = samplerState; - - DisneyMaterial0 material; - material.diffuseMap = diffuseMap; - - DirectionalLight dirLight; - dirLight.direction = float3(0.0, 1.0, 0.0); - dirLight.intensity = float3(1.0, 1.0, 1.0); - - SurfacePosition surfPos; - surfPos.position = float3(0.0, -10.0, -10.0); - surfPos.normal = float3(0.0, 1.0, 0.0); - surfPos.uv = float2(0.5, 0.5); - surfPos.color = 0.0; - - float4 outVal = computeShading<DisneyMaterial0, DirectionalLight>(view, surfPos, material, dirLight); - - outputBuffer[0] = outVal.x; - outputBuffer[1] = outVal.y; - outputBuffer[2] = outVal.z; - outputBuffer[3] = outVal.w; -}
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