##RenderMan RIB
version 3.03

# declare the variables:

Declare "Prob"  "uniform float"
Declare "Width" "uniform float"

# define the output file:

Display "first.tiff" "file" "rgb" 
Format 500 500 -1

# define the lighting:

LightSource "ambientlight" 1 "intensity" [0.25]
LightSource "distantlight" 2 "intensity" [0.75] "from" [5 8 -10] "to" [0 0 0]

# define the rendering parameters:

ShadingRate 1
Projection "perspective" "fov" [70]

# define the scene to be rendered:

WorldBegin
	Surface "first"  "Prob" 0.2  "Width" 0.05
						# specify the surface shader
	Color   [1 1 1]				# specify the Cs color
	Opacity [1 1 1]				# specify the Os opacity
	TransformBegin
		Translate 0 0 6			# move away from the eye (= gluLookAt)
		Rotate 90  1. 0. 0.		# rotate so don't see north pole
		Sphere 3 -3 3 360 		# a full sphere
	TransformEnd
WorldEnd