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By default, HtoA will automatically create an Arnold properties tab on newly created OBJs. It is possible to prevent the automatic creation of properties by setting the HTOA_AUTOPROP environment variable to 0. You can then manually add Arnold properties to selection of OBJs by clicking Add Arnold Properties in the toolbar:


or by using Tab > Arnold > Add Arnold Properties in the network editor:



Similarly, the properties can be removed with Remove Arnold Properties on the toolbar or tab menu.

Note that the Arnold properties are regular Houdini spare parameters that are prefixed the ar_ to emphasize that they are specific to Arnold.


Arnold properties can be added to the following objects.

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