I had similar problems with a extruded 3d text mesh. I tried a lot with the smoothin groups as well. After all I saved the flat front and back parts as one surface and the extrusion sides as an additional surface.
The house should however look ok if you set it flatshaded, using entiyfx 4. (If loaded using LoadAnimMesh you need to set its children's fx recursively!)
The house should however look ok if you set it flatshaded, using entiyfx 4. (If loaded using LoadAnimMesh you need to set its children's fx recursively!)