Fractal Mountains and Jets |
Inspired from a fractal picture near the back of Siggraph '88. The mountain is
created from 3 overlapping fractals (100,000 polygons) and is texture
mapped with a procedural mountain texture (height and slope dependent).
The entire scene is enclosed within a sphere onto which is mapped a simple
Perlin clouds texture with an appropriate blue color. The sun-shining-through-clouds effect is actually a point light source placed very near to the
sphere so that the cloud texture becomes saturated. The water is created from
the 'waves' procedural texture which is the sum of 20 point wave sources
(uses cycloidal Perlin noise sources uniformly spaced about a unit sphere).
The point light source near the 'sun' is placed so it bounces off the water and
into the camera to give the water a more natural look. NuGraf's atmospheric
mist shader was used to create a low-level mist.