Creating a lightmap UV channel

In this video we will cover how to create a second UV set for your game assets. With this second UV set, we can take advantage of lightmaps inside of UDK.

Category:

Howto & Style

Tags:

• 3dmotive
• udk
• unreal
• tutorial
• 3ds max
• lightmap
• lighting
• uvw

[ncshuriken]

Would this work the same if my UV channels used "Fold Mapping" instead of flatten mapping? I have an ultra simple house model I made, simple enough to unwrap the whole thing with unfold. Could I use fold mapping for the lightmap channel too?

thanks

[3dmotiveLLC]

@ncshuriken If it's simple enough then yes. Just ensure there are no overlapping UV's and that you have ample padding!

-Tyler

[3dmotiveLLC]

This can get a bit tedious and there are plugins out there to help with it, but essentially you'll just need to attach all your scene objects and unwrap them as one or select them all and apply a UVW unwrap modifier if you don't want to attach them together first. Good luck.

[Michal4601]

much simpler way is to go -tool/channel info ---- copy and paste UV

[simplekaty]

I'm gonna go ahead and go ahead and do this now :)

Seriously though, thanks much! Super duper helpful! You are a star

[trickybiker87]

Fankooo!! Cant believe it was something this simple which I overlooked and solved alot of my problems! =D

[sm4llbit]

That is a one nice piece of tutorial !!!

[BurtonBeanie]

So on the first UV channel you put the textutures and normals and what not and on the second UV channel you put the lighting map on?

[JLSR12]

Can someone explain to me what lightmaps are?

[themachinist1000]

Thanks a lot for putting this up, it's a great deal of help. You're voice sounds funny on the video, like you're shouting from inside a small box.

[Danuxsy]

Can some1 help me ? It dosent work at all ! :( Reply as quick as you can!

[ncshuriken]

@Raikick90

I have the same problem too. Im using Fold Mapping. Any ideas how to make it work properly?