Python API question - moving vertices to world position based on vertex colors

[Paul Harris]

Hi all

i need to translate each the vertices of a selected object to the position in world space represented by their vertex color. So basically take RGB color and make it XYZ position for all the verts.  

I have this maya.cmds version that works fine, except it's massively slow on any geo with more than about 5000 vertices:

#-------------

import maya.cmds as mc

selObjs = mc.ls(sl=true)

myVerts = mc.ls('%s.vtx[:]' % selObjs[0], fl=True)

for vert in myVerts:

    col = mc.polyColorPerVertex(vert, query=True, rgb=True )

    mc.move(col[0], col[1], col[2], vert, rpr=1, ws=1)

#---------

Now i'm trying to figure out how to do this with openMaya to speed things up a bit, but having never used that Python API i'm having a bit of trouble.  

Seems i need to get the vert color list using getVertexColors then set the positions using setPoints, somehow needing to translate the MColorArray to an MPointArray...

Anyone have a simple way of doing this?

Cheers

[Paul Harris]

never mind, think i've figured it out..

thanks anyway!

[Marcus Ottosson]

Would it be possible to share your solution? :)

Best,

Curious cat

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[Paul Harris]

sure, here it is:

<script src="https://gist.github.com/anonymous/2dc8ad6d23219337f6fc20321523e499.js"></script>

[Paul Harris]

i mean here:

https://gist.github.com/anonymous/2dc8ad6d23219337f6fc20321523e499

[Marcus Ottosson]

Thanks!

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Marcus Ottosson
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Marcus Ottosson
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