I have written a script that displaces points on an editable mesh object by iterating through the selected vertices with a for loop, and using meshOp methods (eg. meshop.moveVert selected[1] vertIndex Offset node:selected[1] useSoftSel:true) My script works perfectly for points that are directly selected, but I can’t get it to work with soft-selected points.

I have tried using meshop.supportVSelectWeights selected[1], meshop.setVDataChannelSupport selected[1] 1 true and meshop.setNumVDataChannels selected[1] 2 keep:false prior to getting the selected vertices with meshop.getVert selected[1] vertIndex node:selected[1]. The script runs just fine, without compile or runtime errors, but it doesn’t move the soft-selected vertices when I have that mode on.

It appears that my problem is that my method of getting the number of selected points (selected[1].selectedVerts.count) and the points themselves (selected[1].selectedVerts[s].index) don’t recognize soft-selected points. Is there a way I can get these methods to recognize soft-selected vertices with my current setup, or do I have to use another method, (perhaps mapped method?)

[By the way, I used selected = GetCurrentSelection().]

I would greatly appreciate any help. Thank you in advance.

The relevant sections of code:

Using Max 2012

Not entirely sure why it’s not working, but one thing is definitely wrong - meshop.moveVert requires a bitArray of the selected vertices. You can move a single vertex by using #{vertex_number}. (note - curly braces, not parentheses).

Max 4.2 through 2013.
XP-64 (SP2)
NVidia 9800GTX-512 (Driver 266.58).
Core 2 Quad Q6600 2.4GHz, 8Gb Ram, DX9.0c.

Thanks. I substituted the suggested bitArray format in place of the index value for meshOp.moveVert, and the script execution does seem to be faster.

The script still doesn’t take soft-selected points into account in determining the selection. Am I going to have to iterate through all the vertices on the object and check each for selection value greater than 0? This seems likely to work to me, but not terribly efficient. If there is a better way, I’d prefer to use it.

[EDIT: I implemented an iteration over the entire object to check each vertex’s selection value for the case of soft selection (VDataChannel 1 supported) and operated on those with a selection value > 0. This works, but is rather slow.]

Using Max 2012