This is my blender setup:
I export the FPS mesh and the center cube as two seperate glb files.
The center cube acts as a gimbal with movement animations (etc start move, stop move, jump), the FPS mesh has action animations (etc reload, shoot, draw). My idea is to parent the FPS mesh to the cube so that I can mix and match animations.
The orientation of each object is correct when I import them into babylon, but why does my FPS mesh end up mirrored when I parent it to the single bone in the cube using .attachToBone()?