search

graphdeco-inria / gaussian-splatting

Original reference implementation of "3D Gaussian Splatting for Real-Time Radiance Field Rendering"
https://repo-sam.inria.fr/fungraph/3d-gaussian-splatting/
Other
14.63k stars 1.91k forks source link

Question about point_cloud.ply #1000

Open hmlee20 opened 1 month ago

hmlee20 commented 1 month ago

I want to read RGB information from point_cloud.ply, which represents 3D Gaussian. Are the expressions of f_dc_0, f_dc_1, and f_dc_2 R, G, and B? Then what do you mean by the f_rest_num information?

AsherJingkongChen commented 1 month ago

SH features have 3 * (1 + 3 + 5 + 7) = 48 floating numbers. The first 3 numbers are colors in RGB space. The remaining 45 features are colors in high dimensional space. Please notice the layout (there is transposing).