I recently made a parametric Fusion model and wanted a better way to show off what it could actually do. I couldn’t find anything that did exactly what I wanted, so I ended up making a script.

how it works:

• Uses the Fusion 360 API to access and modify user parameters in the model.
• Animations are defined using keyframes, each containing a frame number, parameter value and easing type.
• For every frame, the script interpolates between keyframes, updates the parameters, and tells Fusion to recompute the model.
• Added easing functions like smoothstep so changes accelerate and decelerate smoothly instead of moving linearly.
• Uses Fusion’s Camera API to animate the camera at the same time, including orbiting, zooming and changing viewing angles.
• Once Fusion has recomputed and refreshed the viewport, the script captures the frame as a PNG.
• The resulting image sequence is passed to FFmpeg to create the final video.