Finding UV world position

[Anonymous]

Hey guys , my question is pretty simple. Is it possible to get world position of UV ? For example if I have mesh U = 0.1 V = 0.9, how can I find world XYZ of that place. 

Thank you

[NandoStille · Accepted solution]

Good question.

Btw I always wondered why the "CVs" section of the Channel Box isn't showing the vertex position really, but 0,0,0? The section comes up as soon as a point component is selected. It works for Curves (the example in the docs), but it never worked for Meshes or NURBS surfaces. What's the trick here, Autodesk?

So, first you need to make sure you have vertices selected. UVs don't have a world position.

Either switch to vertex select mode:

or convert your uv selection to vertices:

Then you can lookup the world positions, 1. in the Component Editor:

or 2. in the Modelling Toolkit:

or 3. you use this Python script to print the values in the Script Editor:

import maya.cmds as cmds

selectedVertices = cmds.filterExpand(ex=True, sm=31) 

for vtx in selectedVertices:
    print "%s : %s" % (vtx, cmds.pointPosition(vtx, w=True))