lightmapper keeps giving crummy results

ok so i just lightmapped a simple cornell box. used the exact setting as shown in the video on vimeo.

2 things happen

first thing, it takes like 5 minutes to render the same scene with the same settings and to be honest im not on THAT crappy of a computer. Intel core2 duo 2.0 4gb ram with 64bit windows 7

secondly… well. all my renders always come out “splotchy” and not smooth at all.

This will sound really stange, but go with me:

  1. Select your lightmap in the project window.

  2. Turn compression to True Color.

  3. See if that helps.

  4. FORGET THAT YOU EVER DID THAT AND TURN COMPRESSION BACK ON.

Ok, sometimes lightmaps look really terrible when their compressed, but turning off compression is killer, so be careful before you turn it off.