Grows the grass detail layer over the authored terrain: a deterministic
scatterer seats blades on the CPU height mirror with density from the
masked splat weights, and the engine's GrassPass draws + shadow-casts them.
Inert until the Terrain enables grass and its height data is loaded.
Grows the grass detail layer over the authored terrain: a deterministic scatterer seats blades on the CPU height mirror with density from the masked splat weights, and the engine's GrassPass draws + shadow-casts them. Inert until the Terrain enables grass and its height data is loaded.