Corrupted rendering of Gaussian Splattings

Questions
1

Hello,
It appears we cannot correctly display 3D Gaussian splats created using the code I cloned from the 3DGS GitHub repo (the one accompanying the original paper).
Here is an example of such 3DGS

If you click the download button to get the splatting and upload it to SuperSplat , you see this file is fine. I also converted it to a ply and uploaded to polyCam and also it was displayed 100% correctly

BabylonJS:

image
image560×645 36.5 KB

Super Splat:

image
image1019×1044 93.4 KB

Please let me know how I can display these splattings in BabylonJS
Thank you

3

It could be a quaternion normalization issue, the splats seem to have the correct position and scaling but the rotation is off :thinking:

1 Like
4

@CrashMaster Thank you - you are absolutely right. That’s it - I need to normalize the quaternions!!!
It appears that SuperSplat is doing that, but BabylonJS is not.
I never mind to do that on my end

1 Like
5

cc @Cedric ?

6
1 Like