[UDK]Senior Project: Dark Days

DavidBrumbley

Good Day All,

I'm currently working on my senior project in UDK, and I thought I would start a thread that would follow the project for the next 2 semesters. So far the game designer has blocked out a simple level and I've started making many modular building pieces.

One problem I have ran into is shadows showing up between my modular wall pieces. I know this has something to do with my lightmap unwrap but I can't figure out the problem. Here is a checklist of things I have tried:

All hard edges are not stitched All edges line up with checker pattern in uv window raised and lowered lightmap resolution made sure modular pieces where lined up perfect on grid made sure my smoothing groups are right built with production quality light

I think my checker pattern that I am lining my uv's up with must be the wrong size. If I want my light map resolution to be 128x128 in UDK what size checker texture do I need to use and how many pixels should each square be on the checker pattern?

Thanks!

problem


sample unwrap

DavidBrumbley

Think I found what I was looking for here:

[ame="http://www.youtube.com/watch?v=ntx10JMl9f4"]Fixing Lighting Seams in UDK - YouTube[/ame]

and

http://forums.epicgames.com/threads/802952-Modular-Lightmaps-Issue

yay

JasonLavoie

David, just wanna give you a big thanks for sharing that video. It has always bugged me that when creating modular pieces, at times I would get the same result, generally I found ways to go around it, but in the end would cost more to performance.

Thanks

ScottJ

Yea, this is a problem and its one of the most annoying in UDK when working with modularity.

I recently done a research paper on modularity covering alot of different stuff, this is coverd amongst other things and polycount has a large section on modularity itself here http://wiki.polycount.com/CategoryEnvironmentModularity?highlight=%28%5CbCategoryEnvironment%5Cb%29 (it also includes the research paper I mentioned) a lot of useful information on there if you have time take a look