List All Vertices In PolyMesh

[sa.69303]

Hello,

I want to set a vertex normal of a poly mesh to a specific value.

I have been using "Application.PasteUserNormals" which produces the correct result but is very slow.

Using this command a few hundred vertices is enough to make XSI unresponsive to the user. 

I have tried using "Application.SetUserNormalValues" which is fast but the results aren't correct.

As you know "Application.SetUserNormalValues" takes as input:

A list of indices

A list of normals

To generate a list of indices I am using Application.Selection(0).ActivePrimitive.Geometry.Vertices

So for a simple cube primitive Application.Selection(0).ActivePrimitive.Geometry.Vertices.Count  = 8 which is WRONG! 

For a simple cube poly mesh the number of vertices should be 24 since the cube has hard edges

I have also tried to use ...Geometry.IndexArray & ...Geometry.Points

How do I get a true list of all the vertices in a poly mesh?

Any help would be really appreciated! 🙂

Thanks,

sa.

[hbahnassi]

What you are looking for is PolyNode. This gives you direct access to Normals.

Check out the SDK for more info:

http://docs.autodesk.com/SI/2015/ENU/Softimage-Developer-Help/#!/url=./si_om/PolygonNode.html