What are some alternatives?
When comparing EQUINOX-3D and Strata Design 3D CX, you can also consider the following products
Maya - Maya in Launchpad
PathEngine - PathEngine is a middleware toolkit for the implementation of intelligent agent movement, built around and implementation of points-of-visibility pathfinding on 3D ground surfaces.
SelfCAD - SelfCAD is an online 3D modeling and slicing software.
MilkShape 3D - The MilkShape 3D website has been down for almost one week.
Substance Designer - Substance Designer is a node-based non-destructive application for material authoring.
Clara.io - Free online 3D modeling software: Design, editor, animation, rendering, & lots of free 3D models. Supports Three.JS, Blend, FBX, OBJ, V-Ray, Babylon.JS, STL.