The best 3D Modeler alternative to Alight Motion is Blender, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Alight Motion and four of them are 3D Modelers so hopefully you can find a suitable replacement. Other interesting 3D Modeler alternatives to Alight Motion are Blackmagic Design Fusion, NUKE and PopcornFX.
A comprehensive open-source 3D software suite for modeling, UV unwrapping, texturing, rigging, and animating. It supports renderings, simulations including fluid and cloth dynamics, complex compositing, video editing, and Python scripting, running across all major operating systems.
Fusion is the world’s most advanced compositing software for visual effects artists, broadcast and motion graphic designers and 3D animators.
NUKE is a powerful compositing application that delivers unparalleled speed, an efficient multi-channel scanline rendering engine, and a first-class feature set that is unrivalled in the desktop market.
A suite of tools dedicated to real-time visual effects creation, along with ready-to-run mainstream game engine integrations and a runtime simulation framework for custom integration.
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While Blender can certainly be used to create video animation, it is still designed as a full-blown 3D graphics suite. Meanwhile, Graphite is a video animation software.