# Objective
- Fix#19759
- The bigger permutation table only comes into play for higher
dimensions than 1, when you start doing
`PERMUTATION_TABLE[PERMUTATION_TABLE[index] + some_number]`
- The bigger permutation table has no mathematical meaning, it's just
there to avoid having to write more `& 0xFF` when doing multiple nested
lookups in higher dimensions
- But we only use 1D Perlin noise for the camera shake because we want
the dimensions to be uncorrelated
## Solution
- So, we can trim the permutation table down :)
- This should be mathematically identical, as a wrapped value will still
access the same element as an unwrapped value would in the bigger table
- The comment was a bit misleading anyways. "mirror" did not refer to
"mirrored values" but to "repeated values".
## Testing
- Ran the example. Still behaves like before.
d770648c2f