by Kiliax » 27 Mar 2018, 10:38
So, I figured out that to get the black areas where map is out of bounds to show on thumbnails you can use decals. I found a particular decal (I believe under "common" that when set to Albedo (I think it was a specular decal?) it would show as all black and I recently realized decals render in thumbnails if you set the LOD to something high like 1000. If you felt like it you could also use a plain white or yellow or some other color decal to spell out a lower case "v" and a number to show version number in thumbnail in black area.