Deformed Mesh Normals - Help Needed

[CarlBooth]

I've made a mesh in 3ds Max by deforming a box. The problem is when I come to light it in my game engine, the lighting looks all wrong.

At first I thought this was my lighting but if you compare it to a sphere primitive, the sphere lights perfectly:

[img_thumb]http://i.imgur.com/elVcX.png[/img_thumb] [img_thumb]http://i.imgur.com/nb3G1.png[/img_thumb]

I seem to remember reading that you have to correct or recalculate the normals.

The normals look like this, so I'm fairly sure that's the problem:

[img]http://i.imgur.com/5J3Oe.png[/img]

How would I go about correcting the normals? Or is there a better way I should be creating meshes which won't cause this problem in future?

[MkTbKz]

I believe there should be a normals subsection under the editable mesh pane. Try activating the element subsection, select the whole mesh, and hit autosmooth. You may have to experiment with the planar threshold, though.