Hello,
I opened BabylonJS runtime at
https://github.com/klaude416/spine-runtimes
/spine-ts/babylonjs/
It's not fully completed.
not tested for MeshAttachment. (i'm using only RegionAttachment)
not available for ClippingAttachment.
and cpu usage is high on my mac.
i'm not good at graphic programming so,
hope to somebody improve by using.
Thanks.