sweep_strength.py renders one open + one closed FPV frame across a
ControlNet strength matrix at fixed seed/prompt and montages them beside
the depth map — the GPU experiment to find the right strength now that
rev-3 depth maps carry a full-range signal (018909b). Findings/plan in
.dev/2026-06-15-diffusion-pipeline-reliability.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
