[jv_map]

[url=http://www.modtheater.com/forum/showthread.php?s=&threadid=1808:a4fa8]Hint brushes[/url:a4fa8]

There's no way LOD terrain could increase your vis compile time. All LOD terrain patches are automatically and necessarily detailed.

I've been told that leaking lights are caused by cloning. So just delete the lights that produce the error and create new ones. It shouldn't trouble much though.

When your vis compile takes way to long, and more than a couple of hours is pretty long, you need to take a close look at the layout of structural brushes. Bear in mind especially small structural brushes can have an enormous impact on the amount of vis leaf nodes. Also, efficient use of areaportals should speed up your vis compile.