Computer Graphics, Opengl, 3d Modeling, 3d Design.
tests are performed in SCS with the Z-buffer. Due to the quantization, two different Z-coordinates z_1 and z_2 in NDCS can get the same value in SCS, if |z_1 - z_2| ≤ 1/2²³, and it causes the Z-fighting. Analysis on the Depths with the Perspective Projection The mapping of the Z-coordinates from