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RixProjectionEnvironment contains one field that can be altered: the deepMetric field. This is used to indicate to the renderer the depth metric used for computing Z values when rendering deep output. The default value of k_cameraZ indicates the renderer should use the distance strictly in the Z axis and can assume that all camera rays go forward in the +Z direction, while k_rayLength indicates that the distance should be measured along the ray direction, as the rays may be go in either the -Z or +Z direction. All other fields on RixProjectionEnvironment should be considered read only.  For example, a plugin that implements the standard perspective projection should return k_cameraZ, while a plugin that implements a cylindrical panoramic projection should use k_rayLength.

RixProjection

Once a RixProjection object is obtained, the renderer will invoke the following methods:

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