##RenderMan RIB 

# set your frame resolution here:
#Format 100 100 1
Format 256 256 1

ShadingRate 1.0
# use first one for screen display, second line to write to a file
#Display "PSbarnacle_t.tif" "framebuffer" "rgba" 
Display "PSbarnacle.tif" "file" "rgb" 

Declare "sfreq" "float"
Declare "tfreq" "float"
Declare "seed" "float"
Declare "max_height" "float"
Declare "variation" "float"
Declare "sparse" "float"
Declare "ncones" "float"
Declare "spikiness" "float"
Declare "Ka" "float"

Projection "perspective" "fov" [45]
Scale -1 1 1
Rotate 0 0 0 1
Rotate 0 1 0 0
Rotate 180 0 1 0
Translate 0 0 -2.4

WorldBegin 
LightSource "ambientlight" 1 "intensity" [0.1]
LightSource "distantlight" 2 "intensity" [1] "lightcolor" [1 1 1] "from" [5 5 10] "to" [0 0 0]
LightSource "pointlight" 3 "intensity" [25] "from" [-5 -5 5]

Rotate 90 1 0 0

Attribute "displacementbound" "sphere" [.5] "coordinatesystem" ["shader"]

# call your surface shader here:
Surface "PSbarnacle" "max_height" [1] "ncones" [10] "spikiness" [0.5]
	"sfreq" [20] "tfreq" [10] "sparse" [1] "variation" [4] "seed" [15]
	"Ka" [1]

#Patch "bilinear" "P" [-1 1 0 1 1 0 -1 -1 0 1 -1 0]
Color 0.5 0.4 0.35
Sphere 0.75 -0.75 0.75 360 

WorldEnd