ufoProcessPostRenderPass

    void ufoProcessPostRenderPass(
       ufoProcess process_instance,
       int        pass_number);

This function is optional. If supplied, it is called directly after each pass of rendering of any rectangular region of the UFO process outputs. ufoProcessPostRenderPass should be supplied if specific data de-allocations need to be performed after a particular rendering pass, where multiple rendering passes are required (see ufoProcessSetNumRenderPasses).

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