Both the structural materials?

[bluenite]

I mean for example grass or hair - 3d(2.5 d?) particles. It is possible in KS to do, or only pseudo plastic procedures using standard textures? Or this can be done only in 3d editors? Somewhere I saw that this is possible only with attribution to the type of shaders. I'm new in 3d graphics, ask maybe stupid.
thanks for the advice
Peter