    ##RenderMan RIB-Structure 1.1
    ##Scene Bouncing Ball
    ##Creator /usr/ucb/vi
    ##CreationDate 12:30pm 8/24/89
    ##For RenderMan Jones
    ##Frames 2
    ##Shaders PIXARmarble, PIXARwood, MyUserShader
    ##CapabilitiesNeeded ShadingLanguage Displacements
    version 3.03
    Declare "d" "uniform point"
    Declare "squish" "uniform float"
    Option "limits" "bucketsize" [6 6]  #renderer specific
    Option "limits" "gridsize" [18]  #renderer specific
    Format 1024 768 1  #mandatory resolution
    Projection "perspective"
    Clipping 10 1000.0
    FrameBegin 1
    ##Shaders MyUserShader, PIXARmarble, PIXARwood
    ##CameraOrientation 10.0 10.0 10.0 0.0 0.0 0.0
    Transform  [.707107  -.408248  -.57735 0
                0  .816497  -.57735  0
                -.707107  -.408248  -.57735  0
                0  0  17.3205  1 ]
    WorldBegin
    AttributeBegin
    Attribute "identifier" "name" "myball"
    Displacement "MyUserShader" "squish" 5
    AttributeBegin
    Attribute "identifier" "shadinggroup" ["tophalf"]
    Surface "PIXARmarble"
    Sphere .5 0 .5 360
    AttributeEnd
    AttributeBegin
    Attribute "identifier" "shadinggroup" ["bothalf"]
    Surface "plastic"
    Sphere .5 -.5 0. 360
    AttributeEnd
    AttributeEnd
    AttributeBegin
    Attribute "identifier" "name" ["floor"]
    Surface "PIXARwood" "roughness" [.3] "d" [1]
    # geometry for floor
    Polygon "P" [-100. 0. -100.  -100. 0. 100.  100. 0. 100.  10.0 0. -100.]
    AttributeEnd
    WorldEnd
    FrameEnd
    FrameBegin 2
    ##Shaders PIXARwood, PIXARmarble
    ##CameraOrientation 10.0 20.0 10.0 0.0 0.0 0.0
    Transform [.707107  -.57735  -.408248  0
               0   .57735
               -.815447 0
               -.707107  -.57735  -.408248  0
               0  0  24.4949 1 ]
    WorldBegin
    AttributeBegin
    Attribute "identifier" "name" ["myball"]
    AttributeBegin
    Attribute "identifier" "shadinggroup" ["tophalf"]
    Surface "PIXARmarble"
    ShadingRate .1
    Sphere .5 0 .5 360
    AttributeEnd
    AttributeBegin
    Attribute "identifier" "shadinggroup" ["bothalf"]
    Surface "plastic"
    Sphere .5 -.5 0 360
    AttributeEnd
    AttributeEnd
    AttributeBegin
    Attribute "identifier" "name" ["floor"]
    Surface "PIXARwood" "roughness" [.3] "d" [1]
    # geometry for floor
    AttributeEnd
    WorldEnd
    FrameEnd