Jinhwan Choi

With large dataset, Splatfacto never densify gaussians

4

**Describe the bug** I'm experiencing an issue while attempting to train Splatfacto with a large dataset (>3000 frames) using default parameters. The `do_densification` flag isn't being triggered, resulting in densification...

`ssim` function accepts additional input, `mask`, which is boolean tensor of same size as the input images. This PR closes https://github.com/VainF/pytorch-msssim/issues/50