Animaj Introduces “Sketch-to-Motion” AI Tool

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Animaj has unveiled its AI tool Sketch-to-Motion, which turns rough sketches into fully-rendered 3D animations with one click.

Sketch-to-Motion promises to keep full creative control in the hands of the artist, as the AI automates the technical execution. The tool operates in a fully editable 3D environment—similar to Animaj’s previous AI model, Motion-to-Motion—enabling creative adjustments at any stage of the process.

Animaj’s system is built around two main types of models: sketch-to-pose and 3D motion in-betweening. Sketch-to-pose models use ResNet50 architecture and are trained on hundreds of thousands of pairs of sketches and their corresponding 3D poses for each character. These models can accurately predict the rig controller values of a character from an input sketch. Motion in-betweening models focus on predicting the intermediate poses between the key poses of the characters. Key poses are typically spaced a few frames apart. These models leverage LSTM (Long Short-Term Memory) architecture to ensure the movement remains consistent over time.

“Sketch-to-Motion changes everything about how we create animations,” said Sixte de Vauplane, CEO and Co-founder of Animaj. “It’s not just faster; it’s smarter. Artists now have the freedom to iterate endlessly and see their ideas come to life instantly. This tool isn’t replacing creative artists—it’s empowering them.”