I solved the issue. The problem was with creating srv in BuildTextureSRVs(). What happened was each iteration of the loop, srvcpuheap handle reset to the start. After the end of the loop it only contains the last texture of mTextures.

fixed code:

void RESrcLoader::BuildTextureSRVs()
{
	int i = 0;
	…

isu diss said:
I figured it out by myself. Thanks for the big help.

Haha, if i would not know you, this quote might sound rather sarcastic. :D

I've wrote a ray tracing shadow shader before. (abbreviated as ShaderA)

And recently I wrote another ray tracing shader. (abbreviated as ShaderB)

I create ID3D12StateObject for both.

But hit group shader identifier is unique between each ID3D12StateObject.

My hit group data struct is like this:

| shader…

DX12::setResourceData does the following:

Void* mappedData = nullptr;
D3D12_RANGE emptyRange{};	// Empty range to indicate we are not reading
if (FAILED(resource->Map(0, &emptyRange, (Void**)&mappedData))) return false;
memcpy(mappedData, data, (size_t)numBytes);
resource->Unmap(0, nul…