Minimax H3 short film with native sync sound: a two-pass ComfyUI workflow
CommentSignal9029 · reddit · 2026-08-31
For the ComfyUI sync-sound challenge, the author built a Brutalist short film "IN TRANSIT" with Minimax H3, where a square wave forces matter to shatter along ruthless 90-degree orthogonal logic (checkerboard water, cubic collapses, square clouds).
The workflow splits into two passes. Generation (Ref2Vid): visual references made with Nanobanana, plus an Ollama node (Gemma 26b) in ComfyUI to auto-format prompts into H3 syntax; with Spectrum Apply Minimax H3, Comfy Kitchen attention and the Sol-Attn Patch, base clips render at 864x480 on a single 3090. Latent Upscale: to keep the raw concrete texture and avoid the plastic look of external upscalers, selected clips pass through latent space via custom MMH3Tools nodes (base video + same references + same prompt), upscaled to 1344x768 with the Turbo LoRA 4-step and Sage Attention (1 minute per second of video).
The hardest part was generating audio and video natively with zero post-production sound design: H3 sometimes copies references too literally, but the final pneumatic suction synced perfectly with matter collapsing into the void; post-work was only cuts and volume balancing.
Related event: Making Audio-Video Synced Short Film with MiniMax H3(3 posts)→
More from Multimodal
- Tokyo's Gemini AI Photo Booth turns visitors into plush toys and dioramas — bradneuberg · 2026-10-16
- Orchestrating a 100-image portrait of humanity for aliens with ChatGPT, Argon and p5.brush — dx8xb · 2026-10-16
- Indie Creator Builds an AI-Native Animated Show Solo — ComprehensiveLime654 · 2026-10-16
- Ideogram teases 4.5 arrival and open weights: 'Not yet, but soon' — East_Shoe8814 · 2026-10-16
- Opus 5.5 turns heads with surprisingly polished vertical video demo — FinanceYF5 · 2026-10-16
- 'Celestial Ocean Reverie' prompt template blends starry skies with dreamlike seascapes — LudovicCreator · 2026-10-16