There are great deterministic random number generators, like: https://preshing.com/20121224/how-to-generate-a-sequence-of-unique-random-integers/ https://preshi

There are great deterministic random number generators, like: https://preshing.com/20121224/how-to-generate-a-sequence-of-unique-random-integers/ https://preshing.com/20121224/how-to-generate-a-sequence-of-... Can be used to shuffle a billion points per second on the GPU with sufficient randomness for some use cases.