Open-weights VFX: Paint a plate turns painted blobs into fire and smoke with LTX 2.5
xCaYuSx · reddit · 2026-11-05
The author showcases Paint a plate, their open-weights VFX app from Comfy's Open Source Higgsfield challenge: painted blobs become fire, smoke and water, plus set extension, green screen swap and relight — all open weights, running locally.
- LTX 2.5 carries every edit through the shot with four IC-LoRAs: in/outpainting and SDR-to-HDR (Lightricks), Ripple (WepeNerd), and ainvfx-fluid (theirs).
- FLUX 3 Image Klein edits the first frame; SAM 3.1 finds and tracks objects.
- ainvfx-fluid was retrained on an open synthetic dataset: 176 scenes, first frames by MOSS-Image, clips by LTX 2.5, controls painted by script — every prompt and seed published (CC BY 4.0).
- Training took 16h 20m on one RTX PRO 6000, about 33 GPU-hours total.
Runs in ComfyUI locally (tested on 32 GB VRAM) or on Runpod. Apache 2.0, with dataset, write-up and video.
Related event: Open-Source VFX App Paint a plate Turns Doodles Into Fire, Smoke and Water(2 posts)→
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