Animation/Blend Trees? (Part 2)

I’m also searching for a way to use animation blend trees applied only on some bones in ordre to combine animation. It’s a awesome way to limit animation works in 3D software + the weight of all animations. Most of the time it’s juste a matter of lower body and upper body combination.

Is there actually a way to do it even coding, (but i assume it could be quite time consuming) without cutting the character in two parts (this solution is not possible for my project) ?

@MackeyK24 if i understand you well, you are developing a tool to do that ? Is it a way to do that in unity and then export it to BJS, or will this be implemented directly to BJS ?
I don’t know when BJS 4.2 will be out, but a solution like the one in Unity must be awesome !