Grass and rock generator

[Canning]

I see there is a nice application for creating trees for a TV game. My question is this, is there such a thing for rocks or grass?

thanks

Canning

[Toaster]

Short answer: no.

Answer: Yes but you'd have to make it yourself. For rocks you'd first create a sphere and then change its vertices with a 3D noise function probably perlin noise. With grass you'd have to actually simulate growth somehow and from that create a 2D texture you could apply to a billboard. I imagine it would be somewhat similar to the tree gen I did except 2D. Research L-Systems if you want more information. 

-Toaster