While trying to upload an environment that uses texture blending through vertex painting I've ran into a lot of issues of it not working/displaying correctly. After some research I've found this thread, saying it isn't supported in sketchfab as of yet, but it is from Sept 2016:
Is this still applicable? I had tried to use it on a previous project but couldn't get it to work either.
I want to use it for tiling textures where the UVs are much larger than the 1-1 space so I can't bake the vertex paint information and use it as a mask. And making the uvs fit will blow the texture up in size (and if I tiling it manually in PS it will affect the quality).
If it's still not supported, what would be a good way to deal with it?