Painting Per Channel Vertex Color in XSI?

wenglish

Hey, does anybody know how to paint on just one channel a Color at Vertices map in XSI? seems like it should be simple, but I can't find information on it anywhere

being able to paint like this is really important for environment art / foliage. 

If this is for some reason not possible what 3D app do you guys use to paint vertex color for foliage?

thanks

cryrid

Is the goal to have 3-4 individual channels that each control separate properties? 

It's been a while since I've looked into the vertex painting tools. If it doesn't give you individual access to each channel, then I imagine you could instead paint 3 individual B&W CAV maps (named R,G, and B ), combine these lookup nodes together with an RGBA_Combine, and then use Rendermap to transfer the result into a new CAV property. It'll take about a minute to set up, but once it is going it becomes pretty quick to switch between channels. 

wenglish

that's the most promising idea ive heard so far. I'll give it a try

cryrid

Here's the setup I had in mind. 

wenglish

this ended up working great. thanks cryid