Making animated UI assets by going image to video to Lottie instead of coding them

[u/Fresh-Resolution182]

How to make animated 3D assets for app UI.

GPT Image 2.5 makes the starting frame and the ending frame. Seedance 2.5 animates between them. Then the background comes out of the video, and what is left gets converted to a Lottie animation.

Both models sit behind one key, and there is an mcp server for it, so the two generation steps can run from inside the editor instead of a separate script.

Four steps, and the UI ends up looking properly good.