ENH: Support CUDA ray cast projectors with parallel geometry#966
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axel-grc wants to merge 1 commit into
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ENH: Support CUDA ray cast projectors with parallel geometry#966axel-grc wants to merge 1 commit into
axel-grc wants to merge 1 commit into
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Please add a large test for cone-beam to see if this modification has a computational cost. If it does, move the condition out of the kernel (make two kernels). |
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Please add a test in rtkforwardprojectiontest.cxx for the parallel geometry and flat panel detector |
Remove the parallel-geometry rejection from CUDA ray cast forward, warped forward, and back projectors. Add parallel ray construction using the geometry projection direction, and cover it in the cudaraycastadjointoperatortest and rtkforwardprojectiontest.
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I made some test on cone beam before and after this PR, and it seems there is no computational cost @SimonRit |
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Remove the parallel-geometry rejection from CUDA ray cast forward, warped forward, and back projectors. Add parallel ray construction using the geometry projection direction, and cover it in the CUDA ray-cast adjoint test.
Also align the source-position buffer type and size with the CUDA float3 layout, removing an unsafe double-pointer cast.
Close #929