alt.hn

4/23/2026 at 2:56:41 AM

Show HN: Cartoon Studio – an open-source desktop app for making 2D cartoon shows

https://github.com/Jellypod-Inc/cartoon-studio

by bilater

4/24/2026 at 12:20:31 AM

The LLM/deterministic split is the smart call here. You can iterate on a script without the rest of the pipeline drifting under you. Curious how far the vowel-per-word heuristic holds before you wish you had Rhubarb, but "regenerates instantly" sounds like the right tradeoff for a studio loop.

by amd92

4/23/2026 at 6:02:02 PM

This looks great. Curious about the lip-sync — viseme set or just open/closed mouths? The South Park style is super forgiving but HyperFrames quality seems like it'd need more.

by vaporaviatorlab

4/23/2026 at 6:54:16 PM

Very cool! I will definitely try this out - cartoons is something I have been interested in for a while. Will check it out.

by comicink

4/23/2026 at 11:07:38 AM

static video with text2speech audio and two circles moving representing the mouths: "OMG I might have a show on my hands "

by mdrzn

4/23/2026 at 9:50:34 AM

I went into this imagining something like Synfig Studio (https://www.synfig.org/) or Moho (https://moho.lostmarble.com/). "Studio" here is quite far from what it actually is: lip-syncing in static characters.

Also, Moho offers far more comprehensive (and comprehensible!) lip-sync: https://lostmarble.com/papagayo/

I get that you're using AI to boost capability with less effort, but at the moment, I think the more specialized tools are still a better avenue for this.

Lastly, I followed the link to Jellypod (https://www.jellypod.com/). It's pretty good, but falls into a vocal "uncanny valley". Even a human reading from a script wouldn't sound that perfect; the enunciations immediately come across as artificial.

Now, if this was an extension to Synfig (also open source!), it would be a much more interesting venture...

by fractallyte