single polygon's normals flipping

Aigik

I'm having this strange problem with this model, it baked fine and renders fine with the viewport shaders in Max, but when I take it into UDK it flips the normals on one of the polygons. Here's what it looks like in Max:

[IMG][/img]

And what it looks like in UDK:



Anyone have any idea whats going on here?

Froyok

Did you inverted the green channel of your normal map before the import in UDK ?

Aigik

Just tried inverting the green channel, it changed the normal map's appearance in game as expected, but the flipped polygon's normals are still messed up.

Oniram

what do your UVs look like.. do u have anything overlapping?

Aigik

I'll post a screenshot of the UVs when I get home. And yes, I do have overlapping UVs, since the pillar is symmetrical. Could that cause problems in the UDK?

LMP

I think you'll want to look at this.

I'll probably have to rework your light map UVs.