Cascadeur

Cascadeur is a physics-based 3D animation software that leverages AI to assist animators in creating realistic character animations with proper physical accuracy, biomechanical correctness, and natural motion dynamics. Developed by Nekki, the tool is designed for professional animators, game developers, and filmmakers who need to create high-quality character animations efficiently. Cascadeur's core innovation is its AI-assisted posing system, which uses machine learning to predict and suggest physically plausible poses and movements, automatically adjusting a character's center of mass, balance, and joint rotations to maintain realistic body mechanics. The software features AutoPosing, where animators set a few key poses and the AI fills in intermediate frames with physically accurate interpolation, dramatically reducing the number of manual keyframes required. Cascadeur also includes AutoPhysics, which simulates realistic physical interactions such as ballistic trajectories, rotational momentum, and ground contacts to ensure animated movements obey the laws of physics. The tool supports standard animation workflows with a timeline editor, graph editor, and trajectory visualization tools. Cascadeur works with any rigged 3D character model and exports animations in FBX and other standard formats compatible with Unity, Unreal Engine, Blender, Maya, and other 3D software. The software is particularly valued for creating action sequences, martial arts moves, acrobatic stunts, and athletic movements where physical accuracy is critical. Cascadeur offers a free version for individual creators and paid plans for professional and commercial use.