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Hash

A cheap deterministic random built from the sample position and a seed. Same position and seed, same value, every run and every machine.

Hash node

The Hash node

When to use it

A cheap deterministic random built from the sample position and a seed. Same position and seed, same value, every run and every machine.

Neighbouring voxels are completely uncorrelated, which is why this is no substitute for noise. There is no smoothness in it, so it can never make a surface.

Quantise the position first and it becomes per-cell variation. Feed it raw positions and every voxel inside a cell gets its own answer. The Random Float (Stable) family is the same idea with a named range.

Pins

Pin Type Description
Seed Whole Number Changes the pattern. The same seed at the same spot always gives the same answer.
Pin Type Description
Result Number A number between -1 and 1. It never changes for a given spot and seed.