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Fuses together points with similar positions.
Remove Degenerate Primitives
Deletes degenerate primitives such as polygons with zero area.
Changes the orientation of polygons so they all face the same direction.
Reverses the orientation, or winding, of all the primitives. This is useful when importing or exporting to packages which use the opposite winding order of Houdini.
Deletes polygons which overlap, (share all the same vertices).
Delete Overlap Pairs
When this option is on, overlapping polygons are both deleted. This is useful when the overlap comes from two objects fusing along an edge. When this option is off, the first overlapping polygon is kept and the second polygon is deleted.
Remove Unused Points
Delete points which are not part of a primitive.
Remove point, primitive, detail, or vertex attributes that match a pattern.
Remove point or primitive groups that match a pattern.
Delete points with positions containing a
NaN (Not a Number)
floating point value.
NAN is a special floating point bit pattern which indicates a
failure, such as zero divided by zero or the square root of minus
one. Houdini strives not to introduce these numbers, but this
option is available for any cases where
NaN values appear.
Expert users can examine the VOP network inside this node to see
how to detect
NaN values in their own networks if necessary.
Ensures that all polygon topolgy is made up of manifold patches. Non-manifold points are minimally duplicated and their incident polygons are reassigned to various copies to make sure this is the case.
Delete Small Manifold Patches
If the Manifold-Only Topology checkbox is turned on, this option deletes any maximal manifold patch that contains fewer polygons than the threshold specified in the Primitive Threshold parameter. Such small manifold patches can particularly be generated (detached from the input geometry) during repair of non-manifold topology.
Specifies the maximum number of primitives in a manifold patch that is to be deleted.