Light building nonsense, light map problems?

Pioldes

Okay, so I'm trying to put together a little outside winter piece to put one of my characters in. I worked on a cabin and decided to see how it would look in a basic UDK map.

I simply opened the default night scene and put my cabin with the textures in. Then I generated lught maps for my cabin meshes within. After that, I created a terrain and did a quick sculpt of the snow to give it some noise.

Here's what it looks like pre-building:

Aaaaaand after building all (with medium lighting)



So... yeah. First of all, I MAY have an idea of what's going on with the cabin. Maybe I should just go back and manually work on a second UV channel for the light maps. Could that be it?

Secondly, what happened with the snow? Why is there only some spots of shadows instead of a more smooth gradient?


The only light in the scene is the default light from the Night scene.

osman

What are your lightmap resolutions that you're using? And how about your uvs.

Santewi

Looks like your lightmap resolution(s) are at the default 32. Try 256 or 512.

Visceral

Lets se them lightmap UV's and resulotion.

Pioldes

Thanks, I'll try this when I get home tonight!

But yeah, it confirms my worry. I think I'll have to manually set a second uv channel for all my meshes, as UDK's automatic process might not be good enough for this.

WarrenM

Oh ... Yeah, don't use the automatic tool. Laying out your own lightmap UVs is the only real path to nice lighting. The automatic tool is, IMO, for dire circumstances where you have to have SOMETHING/ANYTHING and can't do it for reals.

Pioldes

I did a few tests with my window and one of the walls and it seems to build fine so I think that was it!

Re-doing sone UVs for the light maps shouldn't take too long either, thanks!

Will post some progress in P&P when I get further into this!