tella-ui-parallax

Parallax shots from a screenshot

Cut a few pieces out of the real screenshot, lift the one that matters towards the viewer, let the rest fall back into soft focus, and move one camera through the stack. Follow tella-motion-design; load it first.

This skill needs the Tella MCP. If tools such as get_timeline are missing, follow the connection steps in the tella skill first. If the Tella Motion tools are missing, offer a slow add_zoom on the screenshot instead.

Source

A sharp, large capture (2× if possible): the user's screenshot, a recording frame (get_clip_frame), or the product page (import_from_url). A lifted piece is shown larger than captured; if the source is small, say it will look soft. Crop it in the sandbox to read each piece's box and corner radius in image pixels.

Layers, far to near

Layer	Holds	Depth factor
Ground	a brand colour or soft gradient, larger than the canvas	0.15
Screen	the whole screenshot as a window, soft shadow; blurred 2–6 px and dimmed 15–30% once a piece lifts	0.4
Panel (optional)	a larger section the hero sits in	0.7
Hero	the one piece the words are about, sharp, 1.2–1.6×	1
Foreground (optional)	a cursor, badge or notification cut from the same image	1.3

One hero per shot, at most three lifted pieces.

Build

• addMedia the screenshot once. Each piece is a duplicate of the screen node with a rect mask (setMasks, the piece's box and radius, no feather), so it sits exactly on its place.
• The lift, on the word that names it (0.6–0.9 s, long ease out): the hero scales up and moves slightly toward the centre while its shadow grows softer and further, and the screen behind blurs and dims, which also hides the hole it leaves.
• The camera: key cam.x, cam.y (and cam.zoom for a push) with setCurve. Wrap each layer in its own group and bind the group's x and y to the camera times its depth factor (bindProperty with multiply); key the lift on the piece inside, so keys and bindings never sit on the same property. The drift is slow: a few percent of the frame over the shot.
• No 3D turn unless the user asks for one; then perspective 1500–2500 px and rotateY under 8° on the screen group during the move only, flat before text must be read.
• Ground and screen larger than the canvas by the camera's travel.

Place each shot as b-roll or an overlay as tella-ui-redraw does, and make later shots from the first (duplicate_motion_document).

Check

get_motion_frame before the lift (pieces exactly on their places), at the lift (hero sharp at 100%, no hole or ghost), and at the ends of the move (no edge in view); then the frames around the shot in the video.