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owl-project / NVISII

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optical flow #111

Closed Acnext closed 3 years ago

Acnext commented 3 years ago

I want to generate optical flow as gt and If object is with reflective materials in our scene， can l get optical flow data？

TontonTremblay commented 3 years ago

do you mean you want the movement perceived in the reflective object? I am afraid that is not possible right now.

natevm commented 3 years ago

Jonathan is correct, motion vectors for virtual reflected images is not supported (and is one of the on-going research challenges in modern ray tracer denoising!)

One thing you might consider is using a post-process optical flow estimator like the one here: https://developer.nvidia.com/opticalflow-sdk

Closing this issue though, since we do not have any immediate plans to support specular motion vectors.