Highend3d Artists Discussion Forums

Vertex Color Information

Tags: #<Tag:0x007f191ab28358>

sumo-kun 2006-12-04 07:47:20 UTC #1

Hi, I have colored in my vertices of my model with the Paint Vertex Color Tool and I was wondering if there is any way to retrieve the color information of a vertex. I looked at the attributes of the vertex but there seems to be no color attribute. I'd like the color information so I can edit it with some MEL later.
Thanks for any help!

naughty 2006-12-04 09:42:18 UTC #2

the same command used to set the vertex colours can also be used to query them:

polyColorPerVertex -query -rgb;

check out the doc for this command. Also, there are colour attributes on the mesh nodes (have a look at the mesh node doc) but weirdly they always seem to be set as 0 no matter what the colour..?

:nathaN

ewerybody 2006-12-04 11:37:31 UTC #3

polyColorPerVertex -query -rgb; returns 0 0 0 if there is no color set yet.
As soon as you asign a color to a vertex it will return this color.

I mean I'm not really into vertexcolors that much but I just made myself a custom vertexColorTool to get and set vColors. Its simple but helped me a lot better than every other native maya tool yet. Whould like someone? ;]

But Naughty? How can one retrieve that mesh node color attributes? I tried to rtfm but i didn't dig it.
And do you know a way to query IF there is a color already set to a vertex or not? I mean there must be a difference somewhere..

I have the feeling that they let the vertex color stuff rot the last releases.. For instance if you vertex color and then try to undo!! -> aaahhgrrgrgrr!!! And I felt the built in Apply Poly Color tool crahed my Maya constantly .. fortunately my tool seems not to do this :]

naughty 2006-12-04 13:05:59 UTC #4

you can get/set the attrs like so:

getAttr pCube1.colorPerVertex.vertexColor[0].vertexColorRGB;

where the [0] is the vertex index in question. If you look at the mesh node doc it shows this attr heirarchy and also mentions for the vertexColor part of the attr: The attribute is a multi with the index of the multi identifying the vertex that the color applies to so you know it should be entered with the index syntax [n]

but, as I said, it always returns 0 even if you have a colour there...? very odd... although there is another, separate vertex face attr which may yield more results but to be honest I just can't be bothered to investigate it further...

Marketplace

Resources

Highend 3D