[Closed] Select by Smoothing Group???

This should do the trick:

fn SelectBySmoothGroup theObject theSG =
 (
-- Get the object's mesh
obj = theObject.mesh

-- Get the face count of the mesh
 numFaces = getNumFaces obj
 
-- Cycle through all the faces, when a face has the same bit flag set in it's smoothing group
-- collect it and put it in faces
faces = for i = 1 to numFaces where (bit.get (getFaceSmoothGroup obj i) theSG) collect i
     
-- Select the faces
 setFaceSelection obj faces

-- Update the mesh
 update theObject
 )

-- This will select all faces with smoothing group 1 set in the selected object.
SelectBySmoothGroup $ 1

I don’t know if the code could be made more optimal, it wouldn’t surprise me if it could.

Hope this helps.

Thanks for the code.

I tried the code, and it doesn’t work for me. There aren’t any errors, it just doesn’t select anything. I don’t know if it makes a difference, but I first select the object, then select the ‘mesh edit’ modifier, then I run the code.

Hamster139

This script will only work on an object that’s been collapsed to an editable mesh. There is unfortunately no script access to edit mesh other than creating it.

Thanks for the input, I found something that works well for my situation, by converting it to a polymesh (which can use the selectBySmoothGroup). I needed something quick and dirty, cuz my meshes were really complex, and I needed to select more than 1 SG at a time.

	convertTo $  PolyMeshObject
	max modify mode 
	subobjectLevel = 4
	       $.EditablePoly.selectBySmoothGroup    Num

Where Num is 2^(smoothgroup-1)

hamster139