On the Base somebody asked for a rock generator. I couldn't resist slapping something together. I did this in about 2 hours, so there's definitely room for improvement. Feel free to dive into the compound, it's well organized and not particularly complicated, there are just a lot of randomizers.
*Compound should be applied to an empty polymesh with a non-simulated ICE Tree
*Detail can be set to 0 if simple rocks are good enough
*UniqueRocks slow down the compound more than TotalRocks.
*Size, position and orientation are randomized regardless of UniqueRocks: even 1 unique rock gives a lot of variation.
*Due to how I've wired it up, TotalRocks is only an estimate. This could be improved.
*I have not added UVs