Model normal problem

I have this problem in unity which shows the models texture like in the picture below. Some faces are black and the other are the opposite color. I couldnt find the solution. I would be grateful if you could help me to solve this problem…

Try adjusting the import settings on the model to ‘Calculate Normals’ instead of import. I’ve had similar issues with Unity and importing normals from OBJ files.

thanks for the suggestion. That helped a bit. It solved the problem on the body but the wings got still the same problem.

What’s the file format of the model? If you don’t mind attaching / uploading it somewhere, it might be easier to take a look at it.

You might want to check your smoothing groups in your 3d app before export.

1473562--81184--$SmoothingGroups.jpg