[Closed] scripted procedural texturemap ?

Is it possible to have something like a scripted procedural texturemap?

I currently run a script to generate the texturebitmap(s).
I tried to put the generation into a scriptcontroller but this is not so “responsive” …

It is no problem to prerender the maps, but If you have a tip howto get nearer to sdk-like texturemaps, I appreciate this.

regards,

Georg