UDK LIght mapping issues

hondo_maclean

Hi
Does anyone know how to get rid of light mapping bleeds or have general advice for light mapping in UDK? I've tried everything I can think of to get rid of these issues, from keeping the shells sewn to cutting them up, snapping them to the grid with 3 pixel padding

Light bleeds


current UV


Looks fine on a fresh import, only when building lighting do I get the isseus

JonathanLambert

Avoid diagonal UV edges where you can and don't be afraid to non uniformally scale your islands to get the highest texel density possible. If all else fails, up the light map resolution at the expense of build times and texture memory.

o2_is_alright

Try and stitch shells together to minimize the number of seams and make sure to utilize as much of the uv-space as possible. You're wasting a lot of space with your current uv layout.

sprunghunt

read this several times:

http://udn.epicgames.com/Three/LightMapUnwrapping.html