yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Yong HeAdd support for `[PrimalSubstitute]` and `[PrimalSubstituteOf]`. (#2691)86fc50c50

master
branchesmasterall refs →
837 B27 linesraw
1//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
2//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
3//TEST(compute):COMPARE_COMPUTE_EX:-cpu -compute -output-using-type -shaderobj
4
5//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
6RWStructuredBuffer<float> outputBuffer;
7
8float original(float x)
9{
10    return x * x;
11}
12
13[PrimalSubstituteOf(original)]
14[BackwardDifferentiable]
15float primalSubst(float x)
16{
17    return 2.0f * x * x;
18}
19
20[numthreads(1, 1, 1)]
21void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
22{
23    var a = diffPair(3.0, 1.0);
24    __bwd_diff(original)(a, 1.0);
25    outputBuffer[0] = a.d;                                       // Expect: 12.0
26    outputBuffer[1] = __fwd_diff(original)(diffPair(3.0, 1.0)).p; // Expect: 18.0
27}