So, I have an OBJ file I’m loading in, and when I use a ColorMaterial made in code, it has shading and all that good stuff, but when I just let it use the material in it’s MTL file, there is no shading, only flat color. If it makes a difference, there is no bitmap file associated with this material, just a color. Also, the obj file was exported from 3DS max, and the material is a Blinn material. I’m trying to apply the lighting just with this:

_lightPicker is good, it’s the same LightPicker I use when applying the ColorMaterial made in code. Is there a special setting I should be using when exporting? Or when importing? Thanks.

Are you using the OBJ exporter that ships with MAX?
You may be missing normals…

I am. Did some more testing and it appears to work fine if you have a bitmap attached to the material. So our solution for now is to just use solid color texture bitmaps, but it would be great if we didn’t have to do that, since it adds another (albeit small) step to the workflow.

Get the obj exporter from Guruware. It will export normals even without a map applied. http://www.guruware.at/main/objio/

Good Luck!

Thanks, I’ll give it a shot.