const ROCK_VARIANTS: number
How many shapes there are.
Four, and it is a taste judgment with a cost behind it: each is a draw call and a geometry, and a scatter field near the camera is a few thousand instances spread over them. Two is visibly two, and eight is four more pipelines to compile at boot for a difference nobody looking at a rock field can name.
Counted off ANGULARITY rather than written down beside it, because the
three tables below are indexed by variant and a count that outran them built
a mesh out of undefined — every vertex NaN, cached under that key, and
nothing anywhere throwing.