The RenderMan Interface - Paul Bourke

Display Option Type Default Description
Pixel Variance float – Estimated variance of the computed
pixel value from the true
pixel value.
Sampling Rates 2 floats 2, 2 Effective sampling rate in the horizontal
and vertical directions.
Filter function RiGaussianFilter Type of filtering and the width of
Filter Widths 2 floats 2, 2 the filter in the horizontal and vertical
directions.
Exposure
gain float 1.0 Gain and gamma of the exposure
gamma float 1.0 process.
Imager shader ”null” A procedure defining an image or
pixel operator.
Color Quantizer
Color and opacity quantization
one integer 255 parameters.
maximum integer 0
minimum integer 255
dither amplitude float 0.5
Depth Quantizer
Depth quantization parameters.
one integer 0
maximum integer –
minimum integer –
dither amplitude float –
Display Type token * Whether the display is a framebuffer
or a file.
Display Name string * Name of the display device or file.
Display Mode token * Image output type.
* Implementation-specific
Table 4.3: Display Options
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