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9 Cards in this Set

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PixelVariance ( Float variation )
The color of a pixel computed by the rendering program is an estimate of the true pixel value: the convolution of the continuous image with the filter specified by RiPixelFilter
PixelSamples( Float xsamples, Float ysamples )
Set the effective hider sampling rate in the horizontal and vertical directions. The effective number of samples per pixel is xsamples*ysamples. If an analytic hidden surface calculation is being done, the effective sampling rate is RI_INFINITY. Sampling rates less than 1 are clamped to 1.
PixelSampleImager( Token name, parameterlist )
Select a pixel sample imager function programmed in the Shading Language. name is the name of an imager shader. If name is RI_NULL, no imager shader is used.
PixelFilter( FloatFunc filterfunc, Float xwidth, Float ywidth )
Anti-aliasing is performed by filtering the geometry (or super-sampling) and then sampling at pixel locations. The filterfunc controls the type of filter, while xwidth and ywidth specify the width of the filter in pixels. A value of 1 indicates that the support of the filter is one pixel. RenderMan supports nonrecursive, linear shift-invariant filters
Exposure( Float gain, Floatgamma )
This function controls the sensitivity and non-linearity of the exposure process. Each component of color is passed through the following function: color = (color * gain) (1/gamma)
Imager( Token name, parameterlist )
Select an imager function programmed in the Shading Language. name is the name of an imager shader
Quantize( Token type, Int one, Int min, Int max, Float ditheramplitude )
Set the quantization parameters for colors or depth. If type is "rgba," then color and opacity quantization are set. If type is "z," then depth quantization is set. The value one defines the mapping from floating-point values to fixed point values. If one is 0, then quantization is not done and values are output as floating point numbers
DisplayChannel( Token channel, ...parameterlist... )
Defines a new display channel for the purposes of output by a single display stream. Channels defined by this call can then be subsequently passed as part of the mode parameter to RiDisplay
Display( Token name, Token type, Token mode, ...parameterlist... )
Choose a display by name and set the type of output being generated. name is either the name of a picture file or the name of the framebuffer, depending on type. The typeof display is the display format, output device, or output driver. All implementations must support the type names "framebuffer" and "file", which indicate that the renderer should select the default framebuffer or default file format, respectively. Implementations may support any number of particular formats or devices (for example, "tiff" might indicate that a TIFF file should be written), and may allow the supported formats to be user-extensible in an implementation-specific manner.