Rotate bone as if y axis was -y

Support Animation and Rigging
1

Hello everybody,
I’m importing animations from an old game. Luckily, the coordinate system is the same as blender, but the input rotations y axis is always upwards and this clashes with Blender bone orientations. I managed to get everything to work perfectly by orienting all the bones towards the floor. But it is not so good to see:

screen
screen624×912 130 KB

I would like to have the torso bone in blender from the hips to the head. And the head from the neck upwards.
Is there a trick to do this, or to properly transform input rotations? If I orient the torso and head bone upwards, I have to negate x and y rot axis for the torso and y and z for the head. I don’t know why they are different. This works for the majority of the animations, but she is crazy and likes to jump, roll, swim, etc and when upside down I see some wrong animations.

2

So with your layout, you’re now importing animations properly?

If you want the bones to look like something else, consider using custom shapes.

I mean, if you wanted, you could duplicate your bones and use copy rotation constraints, possibly with invert on some of the channels, to do what you wanted, but it seems like a big pain just to solve the very minor problem of not liking the way the rig looks.

3

Thanks for the reply, you are confirming me that it is not worth the pain. I was not sure whether there was a simpler and proper way to import such rotations.