Alpha channel for vertex color
We can use another vertex color set to define alpha for internal work but what if we need to export with alpha channel.
This is not a common problem, but I needed it. Some times target platform demands it. If fbx exporter would have an option like "export selected vertex color channel as alpha channel" that would solve the problem too.
4 Comments
Alpha in Vertex Color is being somewhat worked on.
Screen from master (2.79.1<)
Exported FBX (Unity):
Thanks. I hope it comes with 2.8
I'd really love having the alpha in the vertex color set as some games have shaders that use rgba masks. If I want to create such rgba mask textures in blender using vertex colors I need to use two sets of vertex colors which is really annoying because most of the time I'd want to keep them in sync so I don't put two colors in same vertex so to speak.
In ideal case I'd like to define how many color channels a vertex color has inside blender (use ansi hatch pattern or something similar for the additional channels for example) but having the alpha be part of vertex color and being able to export it would be great!
It already exists. It's just not visualizable in 2.8, only in 2.79.1>