l3d

l3d is used at run time in 5 crates. It is a direct run-time dependency in 2 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps)			l3d version
	2	rfw-backend		^0.3
	1	rfw-scene		^0.3
	3	rtbvh	dev	^0.3