Hey guys, I modeled and textured a model into Zbrush and then exported it to Maya in order to rig it and use it in an unreal engine 4 project. But for a day long I tried to adjust those skin weights but it's so hard !
I need some techniques, I looked on the internet but nothing clearly explains what I should do it's just "you paint this and it does not move weirdly", But the thing is that I always end up with a deformed knee, elbow etc.. I'm not able to get something good.

And I'm not talking about those weird bugs that randomly changes my influences, even if the bone influence is locked.

Anyway, I hope you could help me