You are viewing RenderMan 22 documentation which is not the current release. You may view the current documentation by visiting the home page.

Page tree

You are viewing an old version of this page. View the current version.

Compare with Current View Page History

Version 1 Next »


Sample and display filter plug-ins are used to adjust shaded sample and pixel values, respectively, after an integrator has produced them and before they are sent to the display driver.

Sample Filters

Sample Filter plug-ins describe color transformations made to sample values before they are pixel filtered.  They operate on the raw camera ray samples before pixel filtering is applied to them.  Once a sample filter changes a sample and it goes into the framebuffer it becomes a permanent part of any rendered images (including deep images). Note that if a single arbitrary output variable (AOV) is output as part of multiple image files, a single change to a sample may affect all of them. Changes made by a sample filter can also influence the adaptive sampler.

Display Filters

Display Filter plug-ins describe color transformations made to final pixel values after pixel filtering and before they are output.  AOVs shared by multiple images are considered distinct at this point and can be modified separately. Display filters are not currently supported for deep images at this time and have no effect on the adaptive sampler.