Add persistent CUDA ray tracing path for iso-surface example - #10
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kmuseth merged 2 commits intoMay 29, 2026
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Adds a --persistent option to ex_raytrace_iso_surface that selects a persistent-thread CUDA render path. The new path uses a warp-level atomic work queue, shares per- pixel isoCrossing logic through RenderOp, and writes a separate persistent CUDA output image while preserving the existing default render path.
kmuseth
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looks great, but can you please add a few comments (in the code) to document the persistent threading ideas (eg. atomic counters)
kmuseth
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Add persistent CUDA ray tracing path for iso-surface example
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Adds a --persistent option to ex_raytrace_iso_surface that selects a persistent-thread CUDA render path. The new path uses a warp-level atomic work queue, shares per-pixel isoCrossing logic through RenderOp, and writes a separate persistent CUDA output image while preserving the existing default render path.