Cascadeur

Cascadeur is a standalone 3D animation software specifically designed for creating, editing, and cleaning up keyframe animations of humanoid characters and other bipedal or quadrupedal creatures. Unlike traditional animation suites that require manual tweaking of every pose and transition, Cascadeur integrates AI-assisted tools and physics-based simulations to automate many labor-intensive steps. The software allows users to import existing animations in .FBX, .DAE, or .USD formats, then apply automatic cleanup to fix foot sliding, unnatural joint rotations, or weight distribution issues. Its core workflow revolves around a few key features: the AutoPosing tool, which uses machine learning to generate realistic body poses from a few reference points; the Physics engine, which calculates momentum, gravity, and collision forces to make movements feel grounded and physically plausible; and the Rigging assistant, which can quickly generate or adjust character skeletons without manual binding. Users can start from a blank scene and build animations frame by frame, or import motion capture data (via FBX) and refine it. The AI-assisted keyframe interpolation fills in gaps between poses, reducing the need to hand-place dozens of intermediate frames. For example, when animating a character jumping off a platform, the software automatically computes the arc of the jump, the timing of arm swing, and the landing impact based on user-defined physics parameters like mass and gravity. Cascadeur also provides real-time feedback on weight, balance, and center of mass, which helps animators avoid unnatural floating or sliding.