Can't seem to reduce draw calls on 3d objects

Unity Engine
1

Ok, I decided to spend a bit more time trying to optimise my games and noticed something I can’t seem to explain.
I have a 2,000 poly airplane mode that has 2 meshes, one for the body and one for the propeller, both use the exact same material and with nothing else in a scene unity 3.5.7 reports 8 draw calls!!! When I disable the propeller mesh renderer it drops to 4 draw calls.

This seems like madness to me. The shaders used are Mobile/diffuse, I can’t make the object static as it’s a aeroplane that has to move.

Anyone know if this is correct? one mesh at 4 draw calls. and 8 when there are 2 meshes both on the same game object sharing the same texture.??:face_with_spiral_eyes:

2

This may be a silly suggestion and someone with more knowledge than myself can surly point the way. But did you triangulate your mesh before you brought it in to Unity. I am sure unity does this automatically, but maybe thats where the draw calls are coming from?

3

Well it seems logical to me, you have two mesh renderers in the scene.