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Not all of the operations of OSL are supported. The following are currently not supported:

• material closures
• trace
• environment
• pointcloud_search
• pointcloud_get
• pointcloud_write
• setmessage
• getmessage
• surfacearea
• raytype
  
  

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Note a number of OSL attributes are available to be set within a RIB file. The following attributes are supported:

• Attribute Option "user" "int osl:debug" [0]
• Attribute Option "user" "int osl:optimize" [1]
• Attribute Option "user" "int osl:lockgeom" [1]
• Attribute Option "user" "int osl:debug_nan" [0]
• Attribute Option "user" "int osl:debug_uninit" [0]
• Attribute Option "user" "int osl:compile_report" [0]
• Attribute Option "user" "int osl:statistics:level" [0]

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