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RixBxdf::GetPresence()to evaluate the geometry presence.RixBxdf::GetOpacity()to evaluate the opacity color.
Installation
RenderMan will search for bxdf plugins on demand, under the rixplugin searchpath. The following rib stream will search for a plugin file named MyDiffuse.so
| Code Block |
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Bxdf "MyDiffuse" "diffuse1" "color tint" [0.5 0.5 0.5] |
Creating a Bxdf args File
If you would like RenderMan for Maya or Katana to recognize your Bxdf and provide a user interface for changing input parameters and connecting output parameters to other nodes, then you will need to create an args file for your bxdf. The args file defines the input and output parameters in XML so that tools like RMS or Katana can easily read them, discover their type, default values, and other information used while creating the user interface for the pattern node. Please consult the Args File Reference for more information.
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Additional Considerations
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