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//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj -output-using-type
// outputBuffer is defined in IBSDF.slang
//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0 0 0 0], stride=4):out,name=outputBuffer
import MaterialSystem;
import DiffuseMaterial;
import DiffuseMaterialInstance;
import GlossyMaterial;
import GlossyMaterialInstance;
import MxLayeredMaterial;
import MxLayeredMaterialInstance;
//TEST_INPUT: type_conformance DiffuseMaterial:IMaterial = 0
//TEST_INPUT: type_conformance GlossyMaterial:IMaterial = 1
//TEST_INPUT: type_conformance MxLayeredMaterial:IMaterial = 2
[BackwardDifferentiable]
float3 evalBSDF(int type)
{
float3 wi = normalize(float3(0.5, 0.2, 0.8));
float3 wo = normalize(float3(-0.1, -0.3, 0.9));
IMaterial material = createMaterialClassConformance(type, float3(0.9f, 0.6f, 0.2f));
MaterialInstanceData miData;
let mi = material.setupMaterialInstance(miData);
float3 f = mi.eval(miData, wi, wo);
return f;
}
[numthreads(1, 1, 1)]
void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
{
__bwd_diff(evalBSDF)(0, float3(1.f));
__bwd_diff(evalBSDF)(1, float3(1.f));
__bwd_diff(evalBSDF)(2, float3(1.f));
}
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