Papercut QA

Compare stills for style, not content, against the Style DNA and the storyboard. Run it per scene while building and once on the whole reel before the final render.

Preflight

• Install: Standard or Full. Stills need a scaffolded project with Remotion, and the contact sheets need Python with numpy and Pillow ($PAPERCUT_PY). Missing pieces: ./install.sh --doctor, then papercut-setup.
• Library: $PAPERCUT_LIB, else the PAPERCUT_LIB= line in ~/.config/papercut-explainer/config.env, else ask once.
• Read first: Style DNA in ../papercut-explainer/references/style-guide.md section 2, and the backdrop sheet library/papercut/public/bg/backdrops/_sheet.jpg. Each image costs about 0.7-1.5k tokens, so open only what the step needs.
• For density, ../papercut-explainer/references/frame-breakdown.md ("Pacing stats" at the end): scenes average 2.8 s, 2-4 discrete visual events per scene, one every 0.4-0.8 s on a stressed word, a new caption page about every 0.6 s. Copy the density, not the content.

1. Render stills

From the project's papercut/ folder:

$PAPERCUT_LIB/tools/qa.sh NAME FROM-TO NTH [SCALE=0.3] [COLS=9]