Code/Paper comprehension

[wuyingxiong]

Thanks for your work!
In the paper we see such a sentence，“Gaussian semantic tracing is achieved by unprojecting 2D segmentation masks into 3D Gaussians and assigning each Gaussian a semantic tag”. Does this indicate that multi-view masks are used to initialize the semantic information of each Gaussian point,Specifically, the weight of each semantic.
another question：Where is ”Gaussian tracing algorithm“ reflected in the code?