Got a bit of a jump on it this evening, was able to spawn 10k instances over a 150KuuX150Kuu area at runtime, ended up with roughly the same frame rates as I’d get having painted them with the foliage painter at a similar density, around 70-90fps. Still a bit more to do; gotta make proper meshes and particle effects, stipulate where the chunks of tree come out based on hit location, allow for options like slope angle based spawning prohibition and toggleable randomized z rotation and scaling ranges, but all in all, the base spawning was way easier to put together than I had expected.
