8.10 Kodak Cineon display driver

This display driver writes Kodak's Cineon files. Each channel is encoded in 10 bits using a logarithmic scale (regardless of Exposure and Quantize). Such an encoding is appropriate for film recording since it is designed to cover film's color range. A color encoded using the Cineon format can be much brighter than white, therefore it is recommended to use un-quantized values for this display driver to avoid clipping output colors to (1,1,1).

The alpha channel is supported by this display driver but it is not guaranteed to be readable by other software. We suggest to use RGB (no alpha) for maximum portability.

Three parameters are recognized by this display driver:

"uniform integer setpoints[2]" [ref_white ref_black]

This sets the reference black and the reference white values. The default values are 180 for reference black and 685 for reference white.

"uniform integer ref_white" value

Only sets the reference white.

"uniform integer ref_black" value

Only sets the reference black.

An explanation of those parameters can be found in the Cineon documentations available on the web. The standard extension for a Cineon file is `.cin'.

IMPORTANT: this display driver expects un-quantized floating point values so it is important to specify this using RiQuantize:

Quantize "rgb" 0 0 0 0

Or directly to the display driver as in:

Display "image.cin" "cineon" "rgb" "quantize" [0 0 0 0]

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