gglsac code:
https://github.com/ctralie/ggslac/blob/523e64a71518955aae163486500eb04833591eaf/geometry/polymesh.js#L495
https://github.com/ctralie/ggslac/blob/523e64a71518955aae163486500eb04833591eaf/shaders/blinnPhong.frag#L38
For Visualizing Rotations:
https://ursinusgraphics.github.io/RollPitchYaw/
https://ursinusgraphics.github.io/F2024/Materials/ggslac/viewers/MatrixAnim.html