Display drivers are plugins that receive image data from the renderer and output it in some fashion. Generally, they will either send it to a file or display it immediately to the screen.
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This driver maps RenderMan's output variables to image channels as follows:
| RenderMan Output Variable Name | Image Channel Name | Type |
|---|---|---|
r | R | preferred type |
g | G | preferred type |
b | B | preferred type |
a | A | preferred type |
z | Z | float |
| other | same as output variable name | preferred type |
By default, the "preferred" channel type is the value specified for /display/openexr/type in rendermn.ini, which can be either half (16-bit) or float (32-bit). If not specified therein, it defaults to float. The preferred type can be changed by adding a "type" argument to the Display command in the RIB file. For example:
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