Does anyone can help me to understand how the Hash of WebGL fingerprint generated?

The WebGl fingerprint hash is generated by rendering a pattern (or low high entropy image (Image that does not compress well)) and then creating a hash from the resulting rendered pixels.

That image is rendered to a frame buffer with a fixed size so changing screen resolution will not effect the resulting hash.

The vertex and (particularly the) fragment shaders will be written such as to exaggerate known GPU processing differences. What these are will depend on the ...