Here's a matcap to render
normals in camera-space using pseudo-colors on a sphere in the 'oklab' color space.
And here's an ok dragon.
Here I'm using the same colormap to color points sampled on a sphere using
a Fibonacci sampler.
(btw, you can do this kind of sampling in higher dimensions, too. Marc Alexa does it for 𝕊³, which you can in turn treat as quaternions to gettt a distribution of 3D rotation matrices. I've reimplemented that.).
