[glob2-devel] PerlinNoise based clouds

[Leo Wandersleb]

Hi *

I couldn't resist to use Perlin Noise for the clouds as well. For the first 
results it was some 15 minutes of figuring out where to code and to implement 
it. Now I'm not satisfied with the fact everything turned a bit darker. But 
please see if you like it.

Advanteages are:
no repeative patterns
dynamic clouds that appear and disappear
wind can be made random in that way, too.

Disadvanteages:
untested
darker so far (pn maps to [0;1] but most values are [.3;.7]). this can be 
solved with clipping.
slower (significantly when i painted 1x1 squares but 5x5 squares are quite fine 
and 25 times faster. 10x10 still looks good.)

greetings,

Leo Wandersleb