NanoVDB raycasting

[chrisflesher]

Was wondering if there are any plans to implement raycasting for NanoVDB level sets? Do you think this could have a significant performance improvement over the mesh_query_ray function?

[mmacklin]

Hi @chrisflesher , it's a good question - if the NVDB is encoding an SDF then I guess using sphere tracing would be a good option. I am not sure this would be significantly faster than the BVH-based ray casting used by wp.mesh_query_ray() though.

Let me ask the NVDB team what our options are here.

Best,
Miles

[chrisflesher]

Hey Miles, thanks for looking into this, am curious to know if you've heard anything? I was under the impression NanoVDB was supposed to be super fast but not sure how that compares to mesh raytracing.