The nurbspatch scenegraph location, in addition to the usual built-in attributes specified for the location by Katana and arbitrary user data (`geometry.arbitrary.*`

), KtoA supports the following:

`geometry.point.Pw`

: you may use this 4-component float point version to specify control points intead of`geometry.point.P`

`geometry.point.Pref`

: three floats per control point, specifying a reference pos for use in sticking projective texture/noise/etc to the patch through animation.

The standard attributes `geometry.trimcurves`

, `geometry.uSize`

, and `geometry.vSize`

are ignored (the latter two are inferred from the number of control points, knots, etc).

Note that displacement parameters (set on `ArnoldObjectSettings`

) are also honored for nurbs patches.