[Maxscript] How can I change the vertex color automatically?

Kyle_butler

Hi Guys!

I don't know how to script. Everything I've done so far is relying upon Maxscript listener.
I'm trying to automatically change vertex colors on the selected mesh ( any object which I've applied the Edit mesh modifier).

However, when i try to select the Vertex color on the Edit Vertex Colors tab, nothing shows up on the MaxScript Listener (no idea why...)






I tried to look up in the Maxscript online help (https://help.autodesk.com/view/3DSMAX/2016/ENU/?guid=__files_GUID_5702AD16_5D90_4B74_A7E7_F49A8B6903C0_htm) but I don't what to do with the line the give me ( setVertColor <mesh> <CPVvert_index_integer> <color>)


Here is my current "script" (I'm aware it is far from a proper script)

select $geometry in Scene

modPanel.addModToSelection (Edit_Mesh ()) ui:on

maxOps.CollapseNode $ off

subobjectLevel = 1

actionMan.executeAction 0 "40021"  -- Selection: Select All

setVertColor <mesh> <CPVvert_index_integer> <black>


Best Regards and Thanks in advance!

monster

What version of 3ds Max are you using? It's super easy to make an MCG modifier to let you pick a vertex color for the whole mesh.

Kyle_butler

Hi, @Monster! Thanks for your kind input! However I really need to automate this... 

I'm using 2014 at home and 2016 at office. 

Klunk

(&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp; fn tint_mesh mobj col =<br>&nbsp;&nbsp;&nbsp; (<br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; nverts = getNumVerts mobj;<br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; setNumCPVVerts mobj nverts;<br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; buildVCFaces mobj;<br>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; for v = 1 to nverts do setVertColor mobj v col;<br>&nbsp;&nbsp;&nbsp; )<br>&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp; for obj in objects where obj.isSelected and classof obj == Editable_mesh&nbsp; do tint_mesh obj blue;<br>)<br>

this will tint selected editable meshes blue

monster

Klunk beat me to a solution.

I like to use modifiers, and since VC are just another mapping channel, you can use UV modifiers to edit them.

(
    newColor = [1.0,0.0,0.0]
    uv =  uvwmap length:0.0 width:0.0 channel:1 utile:newColor.x vtile:newColor.y wtile:newColor.z
    addModifier selection uv
)

Kyle_butler

Hi, @Klunk and @Monster. 
I'm sorry for the late response. I believe we are in different time zones.

Both scripts work like a charm. Thank you very much for putting your time and effort into my question. They are also easy to edit to other colors as well, so, win win

Hope I can do something like this eventually, Thank you again!