Is it possible to use inline raytracing?

[ohmaya]

o3de/o3de#14307

[siliconvoodoo]

It should be possible by changing the shader model version in the .shader file
set it to type RayTracing.

example here
https://github.com/o3de/o3de-atom-sampleviewer/blob/64499f0e2ec324e656ea2f9bfef17c83942c8399/Shaders/RHI/RayTracingClosestHitSolid.shader

It will translate to lib_6_3 profile for DX12 platform:
https://github.com/o3de/o3de/blob/e282c39b6910a7f386179beefc77d7edd9e23c38/Gems/Atom/RHI/DX12/Code/Source/RHI.Builders/ShaderPlatformInterface.cpp#L235

With that, normally you should have access to RayQuery and TraceRayInline
These are not reserved keywords, but azslc can tolerate them as user symbols even if not recognized.
I verified that it does translate to reasonable HLSL.

For the resources, they should go in an SRG, the sample viewer will have an example of the acceleration structure in an SRG I imagine.