Hardcore Workflow: Generating 3D Gaussian Splats from MiniMax-H3 Videos
questcoast · reddit · 2026-08-09
A developer shared a comprehensive workflow for converting MiniMax-H3 video clips into 3D Gaussian Splat models. The process cleverly integrates multiple AI models with traditional 3D/video processing tools:
- Asset Generation: Used Nano Banana 2 to generate reference images of a car from different angles against a green screen, improving symmetry using a mirror tool.
- Video Transitions: Used the MiniMax-H3 reference model in ComfyUI to generate 3-second transitions between views based on the reference images, upscaling to 1080p.
- Video Processing: Stitched clips in DaVinci Resolve, applied deflicker, denoise, and despill, exporting 1314 frames alongside mask files.
- Alignment & Training: Aligned features in RealityScan, exported in COLMAP format, and trained for 30k iterations using the MCMC strategy in LichtFeld.
- Final Editing: Exported the PLY and performed final edits in SuperSplat.
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