# venus.rib
#
# Test file for the venus.sl shader.  See pp. 277-279.
#
# Reference:
#    _Texturing and Modeling: A Procedural Approach_, by David S. Ebert, ed.,
#    F. Kenton Musgrave, Darwyn Peachey, Ken Perlin, and Steven Worley.
#    Academic Press, 1998.  ISBN 0-12-228730-4.
#
# 

version 3.03
ShadingRate 1
Display "venus.tif" "file" "rgb"
Format 256 256 1
Format 400 400 1
PixelSamples 2 2

Projection "perspective" "fov" 35
Rotate -90 1 0 0
Translate 0 -5 0

WorldBegin

LightSource "ambientlight" 1 "intensity" [0.015]
LightSource "distantlight" 2 "from" [1.3 2 .1] "to" [0 0 0] "intensity" [0.95]

AttributeBegin
  Declare "pswidth" "float"
  Declare "frequency" "float"
  Surface "starfield" "pswidth" .25 "frequency" 3 "intensity" 2
  Sphere 100 -100 100 360
AttributeEnd

AttributeBegin
  Surface "venus"
  Color [.7 .7 .5]
  Sphere 1 -1 1 360
AttributeEnd

WorldEnd