Erin Catto, creator of Box2D (wich was used in mobile games like angry birds and hil climb racing)
crated a new physics engine for 3D games called Box3D wich is more powerfull then most AAA physics engines, And the best thing is it is open source under the MIT licenzes.
What do you think about it, wil godot foundation implement this in tho the godot engine.
Dose it make sense to implement this, because right now ther is no joint and softbody suport.

