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1. Lightmass wont render an OpacityMask that uses vertex color

   

   Topic by jocose · Sep 2010 · Home› Unreal Engine

   Hey Everyone, I have some glass that I wanted to have a layer of sand sitting on in my mission. I figured this would be a reasonable place to try and use vertex colors. I made an evenly subdivided plane and set up a simple material that just took my sand texture and masked it using the red chan in my vertex color node (I…

2. Re: Lightmass wont render an OpacityMask that uses vertex color

   

   Reply by JordanW · Sep 2010 · Home› Unreal Engine

   Lightmass doesn't take into account certain attributes. Anything that takes place in worldspace, viewspace, or on the model. Basically Lightmass creates a tiling texture that it uses to represent the diffuse map of the material. This means any time you have world coordinates doing something crazy or vertex colors doing…