Rendering red screen

[alexthegoodman]

Good afternoon! Thank you for the amazing 3DGS.cpp project. I have some background with WebGPU and basic TensorFlow but am generally still learning graphics programming and machine learning concepts.

I have an issue that may be related to my incorrect usage or settings, so my apologies ahead of time. However, the issue is pictured below:

I tried the nightly build as well 3 different builds at various stages in the commit history, but the latest seems most stable. Yet it is only giving a red screen.

I am able to open schoolbus.ply in another Python-based viewer. The file is binary (text header, binary body) as required.

I have a fresh installation of Vulkan and all the needed dependencies, and I am able to run Vulkan Cube, so it seems that Vulkan is working properly. If you'd like to examine schoolbus.ply, I could probably ask my client if that is okay!

Thank you for your time!

[shg8]

Hi, thanks for raising the issue. Have you tried moving around in the scene? If the initial camera position happens be inside a large read Gaussian, this could happen. Were you able to open other ply files with the latest version? What about with previous commits? If this line remains commented, I can't think of what might have caused this. The ply file would be very helpful if it could be provided.

[alexthegoodman]

@shg8 I wound up being able to open a flowers model from the "official link" mentioned here: https://github.com/limacv/GaussianSplattingViewer/tree/main?tab=readme-ov-file#usage

I will look into getting the ply file(s) we have. Thanks!

[ManishJu]

I am getting the same issue on my Mac with the bicycle scene :

11.mov

[ManishJu]

I got it working on the files in the point cloud folder. those were actually trained on the sfm data , I was previously trying with the input file . Here is the result :

1212.mov