#########################################################################
# fig9.7.rib - RIB to create Figure 9.7 of:
#
# _Advanced RenderMan: Creating CGI for Motion Picture_, 
# by Anthony A. Apodaca and Larry Gritz, Morgan Kaufmann, 1999.
#
# This file demostrates the difference between the Oren/Nayar reflection
# model (output in fig9.7a.tif) and an ordinary diffuse model
# (fig9.7b.tif).
#
#########################################################################

##RenderMan RIB-Structure 1.0
version 3.03

Option "searchpath" "shader" [".:../shaders:&"]
Option "searchpath" "archive" [".:../models:&"]
Format 300 240 1
PixelSamples 2 2
ShadingRate 1

FrameBegin 1
Display "fig9.7a.tif" "file" "rgb"
Projection "perspective" "fov" [23]
##CameraOrientation 0 -40 15 0 0 5.75 0 0.225304 0.974288
ConcatTransform [-1 0 0 0 0 0.225304 0.974288 0 0 0.974288 -0.225304 0 0 0 0 1]
Translate 0 40 -15 
WorldBegin
TransformBegin
CoordSysTransform "camera"
# Ambient light
LightSource "ambientlight" 1 "intensity" [0.01]
Illuminate 1 1
# Fill light
AttributeBegin
Translate -50 50 -100
#Rotate -20 0 1 0
#Rotate 30 1 0 0
Declare "lighttype" "string"
LightSource "uberlight" 3 "lighttype" ["omni"] "intensity" [0.075] "__nonspecular" [1] 
AttributeEnd
Illuminate 3 1
# Bounce light
AttributeBegin
Translate 0 -20 -100
LightSource "uberlight" 5 "string lighttype" ["omni"] "intensity" [0.025] "__nonspecular" [1]
AttributeEnd
Illuminate 5 1
TransformEnd
# Key light
AttributeBegin
Rotate 90 -1 0 0
Translate 0 0 -100
LightSource "uberlight" 2 "string lighttype" ["omni"] "intensity" [1.1]
AttributeEnd
Illuminate 2 1
AttributeBegin
Color 1 .3 .05
Surface "clay" "roughness" [0.5]
Translate -0.5 0 1
Scale 3 3 3
ReadArchive "teapot.rib"
AttributeEnd
AttributeBegin
Color .65 .65 .65
Surface "constant"
Sphere 50 -50 50 360
AttributeEnd
WorldEnd
FrameEnd

FrameBegin 2
Display "fig9.7b.tif" "file" "rgb"
Projection "perspective" "fov" [23]
##CameraOrientation 0 -40 15 0 0 5.75 0 0.225304 0.974288
ConcatTransform [-1 0 0 0 0 0.225304 0.974288 0 0 0.974288 -0.225304 0 0 0 0 1]
Translate 0 40 -15 
WorldBegin
TransformBegin
CoordSysTransform "camera"
# Ambient light
LightSource "ambientlight" 1 "intensity" [0.01]
Illuminate 1 1
# Fill light
AttributeBegin
Translate -50 50 -100
#Rotate -20 0 1 0
#Rotate 30 1 0 0
Declare "lighttype" "string"
LightSource "uberlight" 3 "lighttype" ["omni"] "intensity" [0.075] "__nonspecular" [1] 
AttributeEnd
Illuminate 3 1
# Bounce light
AttributeBegin
Translate 0 -20 -100
LightSource "uberlight" 5 "string lighttype" ["omni"] "intensity" [0.025] "__nonspecular" [1]
AttributeEnd
Illuminate 5 1
TransformEnd
# Key light
AttributeBegin
Rotate 90 -1 0 0
Translate 0 0 -100
LightSource "uberlight" 2 "string lighttype" ["omni"] "intensity" [1.1]
AttributeEnd
Illuminate 2 1
AttributeBegin
Color 1 .3 .05
Surface "clay" "roughness" [0]
Translate -0.5 0 1
Scale 3 3 3
ReadArchive "teapot.rib"
AttributeEnd
AttributeBegin
Color .65 .65 .65
Surface "constant"
Sphere 50 -50 50 360
AttributeEnd
WorldEnd
FrameEnd