Noob, examples of combine.

Udjani

Hey, i wanna know where/when is good to use combine instead of use booleans ''to combine'' i already know that people use it when they mirror something, but aside of that, where would be fine to use. 

Thanks

throttlekitty

Here's a simple example. I have some simple bolt heads sticking out of some metal box. Say this is a small part of some large machinery, but big enough to use geometry instead of a normal map. The lower example is what I'd do in most cases; it's just one face and I have no concerns about texturing or baking. The boolean example cuts that single face into many because it now has holes that meet up with the bolt geometry and is quite wasteful for this situation.

Udjani

throttlekitty 

That's exactly what i needed to know, just one more question, what do you do with the opposite face, delete or doesn't matter?

Thank you!

phixel

Delete the opposite faces if they aren't visible. Saves on polycount and UV space.