Copy left and right legs animation flipped

Maltakreuz

A typical walk cycle ref is something like this. Only 1/2 on keyframes are shown. The rest ist just flipped version.

This is pretty boring (and small-error prune) to make two symetrical poses manually. Is there any way to copy flipped positions between left/right legs, hands etc.? I know this trick from Blender, you must define mirrored bones first and then just copy flipped. Is anything like this in Spine? Or any other trick that allows to animate only 1/2 of such cycles and then just flip left/right?

Maltakreuz

Erika

Always glad to see the animator's survival kit as reference 😃

Regarding your question, You need to have different approaches on walks depending if they're frontal or lateral.
The limbs of a lateral walk can be mirrored by animating one leg and one arm, duplicating the keys on the other leg and arm bones, then offsetting said keys so that they'll play at the correct time: Dopesheet - Spine User Guide: Key Offset

A frontal walk follows the same steps of the lateral one, but requires the bones to be flipped to mirror correctly. The easiest way to do so is to scale at -1 a parent bone: Spine: Tips: 46 duplicate limb
If you copy the bone transforms in local axis you can also achieve the same result (to copy paste single frames/bones positions) Tools - Spine User Guide: Transform copy

Maltakreuz

Thank you, never thought it is possible to paste keys from one bone to another different bone. Just tested, it works just fine.