Support PushConstants[RootConstants] in raytracing SBT and VolatileSRV[Versioned RootShaderResourceView] for command list.

Open HuazyYang opened this issue 3 years ago • 1 comments

Resource binding can be a area of very verbose. Can the following resource binding features be supported:

PushConstants for Vulkan or RootConstants for D3D12 directly written into ray tracing shader binding table, maybe IBindingSet need to specify the constant buffer to create shader table entry.
Volatile SRV[Versioned RootShaderResourceView] is just a resource type of StructuredBuffer<> compared to ConstantBuffer<> in HLSL, which can be bound to root shader resource view.
for BindingSetItem of type "ConstantBuffer", buffer range can not be specified and not work properly, this may be a bug instead of a feature.

Jun 04 '22 16:06 HuazyYang

(3) implemented in https://github.com/NVIDIAGameWorks/nvrhi/commit/198b2d082963e916f0a00fb3350b44a46a1d2bfa with a test in https://github.com/NVIDIAGameWorks/donut_examples/blob/main/examples/vertex_buffer/vertex_buffer.cpp

Dec 28 '22 00:12 apanteleev