10.136. Reverse Triangle Winding

Group (Subgroup)

Surface Meshing (Connectivity/Arrangement)

Description

This Filter reverses the winding of every Triangle in a Triangle Geometry. The winding is the order in which a triangle’s three vertices are listed; that order determines which way the triangle’s normal points. Reversing the winding therefore flips the direction of the triangle normals so they point the opposite way.

Some analysis routines require the normals to point “away” from the center of a Feature. This Filter lets you flip the winding so the normals point in the required direction. After reversing the winding, recompute normals with Compute Triangle Normals so they reflect the new vertex order. To check whether a mesh has consistent winding before or after this operation, use Verify Triangle Winding.

Required Input Sources

• Triangle Geometry – the surface mesh whose triangle winding will be reversed.

Input Triangle Geometry

Parameter Name	Parameter Type	Parameter Notes	Description
Triangle Geometry	Geometry Selection	Triangle	The DataPath to then input Triangle Geometry

License & Copyright

Please see the description file distributed with this Plugin

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