Animation preview proxy generator

An animator working on a complex composition hits spacebar to preview their work and waits. The preview stutters, drops frames, or refuses to play in real time because the system can't handle the full-resolution output with 3D layers and plugin effects all firing at once. They're making creative decisions — does this timing feel right? does this easing look natural? — based on a broken playback experience.

This is a structural problem inside the existing tools because every major animation application previews from the full composition render pipeline. There's no native concept of a 'proxy preview' the way video editing software handles offline media. Adding it would require rearchitecting the preview engine, which is a multi-year project for any mature codebase — no animation vendor is going to do this for the mid-range user segment that doesn't pay enterprise prices.

Users specifically describe preview requiring 'very powerful hardware,' lag with 'heavy processing or complex animations,' and performance issues with 'heavy compositions, plugins, and 3D layers, especially on mid-range systems.' The gap is that no standalone tool watches an animation project file and automatically generates a low-resolution, baked proxy render that the user can scrub through instantly for creative review — then swaps back to the full comp only at final render time.

The need recurs every single editing session. An animator who spends 20 minutes per day waiting for previews to buffer loses over 80 hours a year. That's two full work weeks.

What to build

Build a background desktop process that monitors an After Effects or Animate project file for saves, automatically renders a low-resolution proxy preview (e.g., quarter-res, no plugin effects) to a local cache, and opens a lightweight scrubbing viewer so the animator can review timing and motion without touching the main application.

Where to start

Start with After Effects users who also have Adobe Media Encoder installed, since AME's watch folder feature provides a legitimate, documented hook for triggering proxy renders without any undocumented API usage.

The hard part

After Effects project files are not fully documented binary formats, so reading comp structure and triggering a headless render requires using Adobe's scripting APIs or rendering via the command-line aerender binary — which means you're dependent on the user having AE installed and on Adobe not breaking the CLI in future versions.

How it makes money

One-time purchase of $49-79 for a perpetual desktop license, with a paid upgrade each major version cycle — mimicking the pricing model animators already understand from buying AE scripts and plugins.