This modified version not require 'scale' and 'rotation' parameters to render, why is that?

Question

This modified version not require 'scale' and 'rotation' parameters to render, why is that?

songofjoy opened this issue 6 months ago · 1 comments

Hi, thanks for your great work. I have a few questions I don't understand. Why not use the 3DGaussian's diff-gaussian-rendering package directly. This modified version not require 'scale' and 'rotation' parameters to render, why is that? Thank you!

Answer 1 · 2024-04-11T14:56:49.000Z

The original diff-gaussian-rasterization package uses a different convention for the spherical harmonics. See this comment for more details. This modified version's API is exactly the same -- you can either pass precomputed covariance matrices or scale + rotation.