No clip — .mov / .mp4 / .m4v / .webm (H.264 MP4 if decode fails).
empty
empty
empty
00:00.0 / 00:15.0
Record captures 15.0s of this canvas at 30 fps, 1920×540. MP4/H.264 when the browser can encode it, otherwise WebM. The file is checked, then downloaded. Stop discards the take.
Hydra chains only. hydra-synth eval runs page JavaScript, so this box does not use it. s0 stays the video; load stills into s1–s3 above. intensity follows the slider. Ctrl/⌘+Enter runs.