RE: [Flightgear-devel] Grand Canyon Demo

[Jon S. B. <js...@ha...>]

> That demonstrates the point I made about texturing for rock types;
> You can do a good guess of the GC texturing by ...
> (1) Anything within 30 degrees of the horizontal is covered with forest
> (2) Anything between 30 degrees and 60 degress is a grey scree color
> (3) Anything else is textured according to altitude MSL with a 1D texture

This sounds like a good idea. I am not an expert in this, but would
something like that take a lot of cpu time, i.e. slope-determinant
texturing? POV-Ray does something similar to that when placing a texture on
a mountain or whatever. The effect is very good.