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aipixel / GPS-Gaussian

[CVPR 2024 Highlight] The official repo for “GPS-Gaussian: Generalizable Pixel-wise 3D Gaussian Splatting for Real-time Human Novel View Synthesis”

Home Page:https://shunyuanzheng.github.io/GPS-Gaussian

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question about projection_matrix function

lebron12332 opened this issue · comments

commented

Thank you for your excellent work! What does this function do? What do the znear and zfar parameters mean? Do I need to change the parameter values when using the custom data set?

projection_matrix = getProjectionMatrix(znear=self.opt.znear, zfar=self.opt.zfar, K=intr, h=height, w=width).transpose(0, 1)
commented

The projection_matrix is used to do coordinate transformation which is borrowed from the original 3D-GS code. The near and far values will not have a significant impact on performance in GPS-Gaussian. You can also set 0.01 and 100.0 respectively on custom data.