Bezar Video Studio · Standard Process
3D Set Design for Previs
A permanent step for concepting any narrative video with a recurring location. Build the set once in 3D, block every camera against it, and let AI only dress the shots — so the room never drifts between frames.
1 · Blender greybox (geometry = truth)
2 · AI-dressed (FLUX Kontext), layout held
✅ Correcting the set = edit the spec once → the fix propagates to every shot. No more hand-patching frames because the fridge moved.
The steps
Establish the set. From the client's location, write a set-spec JSON — room footprint + every fixed element (appliances, furniture, windows, doors) with exact position, size, and locked finishes (e.g. fridge = white). Template:
projects/big-gorilla/set_spec.json.Block every shot as a camera. One
cameras entry per storyboard beat (loc, target, lens) — the reusable, exact version of marking angles on a floorplan. Subject stand-ins can appear only in the beats that need them.Render greybox + depth (headless Blender, no MCP):
Blender -b -P tools/previs/greybox_kit.py -- <spec.json> <camera> <out_dir> → a color greybox + a depth map.Dress to photoreal. FLUX Kontext by default; depth-ControlNet when a shot must be pixel-locked (use a shaped stand-in for subjects). Feed the character/wardrobe bible; state who is / isn't in each shot.
Verify, then assemble. Check each frame against the spec (landmarks, wardrobe, subjects), re-dress any drift, and build the rich-HTML storyboard.
Dressing engine — pick per shot
| Engine | Strength | Use for |
|---|---|---|
| FLUX Kontext | Photoreal + holds layout + real subjects | Default |
| depth-ControlNet | Pixel-locked geometry | Hard continuity (+ shaped stand-in) |
| Gemini nano-banana | Holds layout, matte look | Backup / variety |
| gpt-image-1 | Best polish, drifts | Look-dev only |
How to run it
Invoke the /set-designer skill at the start of a concept, or follow .claude/skills/set-designer/SKILL.md. Toolkit lives in tools/previs/; dressing runners in tools/ai_video/. Proven on the Big Gorilla spot (see its Continuity Proof and Model Bake-off pages).