You can fix this by adding the -final parameter to VRAD.
To simulate indirect/ambient lighting from the sky, VRAD casts light rays in a number of different directions. This can cause some strange looking results, especially with a small lightmap scale. The -final parameter greatly increases the number of directions/rays, which looks better but also takes longer. As the name implies, you'll probably only want to use it for your final compile before releasing the map.
Sorry, you need to Log In to post a reply to this thread.