Anti-aliasing is not supposed be applied to normal and depth maps in the dataset

[EasternJournalist]

It is nice to have image anti-aliased in the GObjaverse dataset. However, the depth and normal maps are also anti-aliased:

G-buffer should not be anti-aliased in any rendering pass. This could lead to potential issues when doing something with the ground truth geometry. For example, project the depth map to 3D point cloud and calculate shading with the normal map.

[irimsky]

I have the same opinion with you. This may lead to some problem when it comes to 3d space.