The phenomenon of sparse points When export the pointscloud.

[kafei123456]

Dear author , I have found the reason why we only get the sparse points when export the pointscloud . The pixel proportion of target is key ! When proportion about >80% we can mesh is greatly, but about <80% we can't mesh it , which offer a sparse pointscloud to us. I wonder how your code work this results . like grid-downsampling to downsampling the pointscloud ?I attempt to read the code of save_mesh(), but I m a freshman about CUDA_Programming ! @rgov @pwais @smartin015 @flipphillips @mmalex