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View Full Version : Unable to get low-poly model to look smooth with normal map



FoxMulder900
11-20-2009, 03:21 PM
I have a low-poly model and a normal map for it which i generated using a higher-poly version. My problem is that I cannot get the lower poly version to look smooth inside UDK. I can clearly see each facet of the object as if lighting is being calculated per-vertex instead of per-pixel. Here is a screenshot of my material layout and how the model looks inside the engine.

http://i251.photobucket.com/albums/gg282/foxmulder900/materialexample.png

Any ideas as to what I am missing to make the object look a bit smoother?

Thanks in advance!

tyrone70
11-20-2009, 03:57 PM
When you baked the normal map, were there any smoothing groups on the low poly? to me, it looks like the low poly didn't have a smoothing group on it, so its normals kind of fused with the high poly normals.

cgmark
11-20-2009, 03:59 PM
You need to add smoothing groups. That can make a corner look round.

FoxMulder900
11-23-2009, 05:14 PM
Great! Thanks for your help!