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lud
Lua based 3D modeler
Lud is a parametric text-centric modeler
written in Lua
Lud on github
Echo

Echo is a collection of clients for the Verse protocol.
Share your models in realtime on your local network or through the internet, exchange seamlessly between heterogeneous applications or compose your own hybrid modeling tools on the principle of the Flow-based modeling paradgim.

Echo on github