Vertex paint - Top layer bleeding over

[Cronnix]

Hi everyone. I've stumbled upon an issue with vertex blending, as illustrated below. The top layer (red texture) that should have black vertex color assigned to it, bleeds over blending between other colors such as cyan and yellow for some reason, resulting in red outlines as you can see. Is there any fix for this, other than making sure to layer analogous colors on top of each other, instead of RGB to avoid foreign colors in blending?



I've tried adding a better blending alpha between two layer according to this tutorial: http://www.chrisalbeluhn.com/UT3_Ver..._Tutorial.html, but the result is the same, top layer leaks over, this time into white blend between two textures:

[Steve_T]

Are you doing this on a static mesh?

[Cronnix]

Are you doing this on a static mesh?

Yes. I've given up trying to use different colors and resorted to using shades of one color (white-grey-black in my case) as suggested in this post: http://www.polycount.com/forum/showp...4&postcount=22
That approach solved all my issues. If anyone has a clue on why the bleeding of top (black) layer occurs or how to prevent it, I'm still very curious, thanks!