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Case Study3:15

The Extraction: Narrative Short Film Previs

A 3-minute sci-fi narrative previs pipeline built with custom character LoRAs and modular ComfyUI nodes.

Elena Rostova (VFX Supervisor)Published August 2026
Tools:
Flux.1 DevWan 2.1 (Open Weights)ComfyUIDaVinci Resolve StudioElevenLabs
01 / Creative Brief & Constraints

The Production Brief

Deliver a 3-minute animated animatic of an extraction team infiltrating an underground bio-dome. Requirements: continuous lead character facial identity across all 12 shots, tactical camera angles, and zero cloud API leaks for confidential studio IP.

02 / Shot Breakdown

Step-by-Step Shot Deconstruction

Shot #1: Tactical Team Infiltration (Wide Cavern)Flux.1 Dev (Self-Hosted LoRA) → Wan 2.1 ComfyUI
Concept Prompt:

"Wide establishing 35mm film shot of three tactical operatives in matte black armor rappelling into massive underground subterranean biodome, volumetric dust beams, Arri Alexa 2.39:1."

⚠️ Creative Challenge:

Maintaining proprietary studio suit design and confidential IP without uploading to public cloud servers.

✓ Technical Solution:

Trained 20-image custom LoRA in Kohya_ss on local RTX 4090; animated locally via Wan 2.1 ComfyUI workflow.

Artifact: 12-shot Anamorphic Animatic
03 / Key Production Takeaways

Director's Field Notes

  • Self-hosted ComfyUI pipelines protect studio IP and eliminate recurring cloud API credit costs.
  • Custom Flux LoRAs guarantee 100% actor and costume continuity across complex multi-shot scripts.
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