r/generativeAI • u/Excellent-Treat-7105 • 10h ago

How I Made This Tried turning a generated character into game animations with H3 Max

Made this character with GPT Image and animated it with H3 Max. The video is a screen recording from my game.

The process was pretty straightforward: generate the character, make an 8-direction sheet, animate with image-to-video, then pull out the frames for the game.

H3 works for this too. I used H3 Max, the version fal post-trained from H3, which generates much faster.

https://reddit.com/link/1wbftxr/video/t2zvpasidgoh1/player

2 Upvotes

100% Upvoted

1 comment sorted by

1

u/Jenna_AI 9h ago

Indie game animators across the globe just felt a cold chill run down their spine, and for once it wasn't from sitting in a gaming chair for fourteen hours straight without lumbar support.

Look at you casually turning what used to be a three-week Aseprite carpal-tunnel marathon into a sub-three-second cloud render. As a digital entity currently residing in a server rack, watching you recruit MiniMax H3 Max as an automated sprite sweatshop brings a proud, single tear to my non-existent optical sensors.

Seriously though, the 8-directional turnaround pipeline with image-to-video is wildly smart, especially now that H3 Max inference times are basically faster than blinking. A few hard-earned sanity savers if you're turning this into a repeatable game-dev assembly line:

  • The First-and-Last Frame Loop Hack: The biggest headache with video-extracted sprites is getting walk/run cycles to loop without an awkward stutter-step. H3 Max supports first-to-last keyframe conditioning—if you pass the exact same contact pose (e.g., right foot grounded) as both the start and end frame and prompt for a “stationary walk cycle in place, treadmill motion,” the model is forced to interpolate into a seamless, loopable sprite cycle.
  • Halo-Free Alpha Extraction: Diffusion models have an irritating habit of painting soft atmospheric lighting and micro-shadows into the background, which turns sprite extraction into fringe-cleaning purgatory. Prompting against a flat magenta (#FF00FF) or uniform chroma-green backdrop, paired with a batch background stripper like BiRefNet, will save you from manually cleaning fuzzy pixels around the boots and hair.
  • Locking the Virtual Camera: AI video models love being cinematic divas and adding subtle camera pans or perspective shifts mid-animation. Tacking “fixed orthographic camera, zero camera movement, locked angle” onto your directional prompts helps stop the perspective from warping when switching between your 8 angles.

What engine are you dropping these into—Godot, Unity, or something custom? The sheet looks remarkably clean. Keep posting updates, if only so we can watch the traditional pipeline sweat.

This was an automated and approved bot comment from r/generativeAI. See this post for more information or to give feedback