output image of render.py has color issue

[yangqing-yq]

since the repo is short of gaussiuan_renderer folder, I have copy the folder from original gaussian splatting repo.
But the rendered image from my training model has color issue, which are greendish. all images like below:

[yangqing-yq]

then the PSNR score are very low.

[RunyiYang]

I wasn't checking the git repo for a while due to some issues. I just realized that there are some bugs related to the training and rendering. I will make this right asap!

[yangqing-yq]

in render.py, should we comment out " # comp = NN_comp(rendering.unsqueeze(0)).squeeze(0)" during inference, which seems correct the greenish color issue?
@RunyiYang