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Luma key.

Make dark or bright regions transparent using an adjustable brightness threshold.

A dark source plate disappears while its bright circle remains. Luma Key converts low luminance into transparency, revealing the independent striped background beneath. Threshold, softness, inversion and source geometry remain editable.

Try it in your agent.

Use this prompt as a starting point. Review the result, then ask for the details you want to change.

A prompt to start from

Use Tesseract. Create an eight-second Tesseract luminance-key demonstration. On the right, place a white circular light on an opaque Charcoal rectangular source plate, over a Sea and Sky striped backdrop. Animate actual Luma Key threshold to remove the dark source pixels while retaining the white light. The revealed stripes must be independent layers showing through genuine keyed transparency. Keep the Exposure title on Bone to the left.

Tesseract plugins and runtime downloads are coming soon.

A few useful details.

How do I try this with my agent?

Tesseract plugins and runtime downloads are coming soon. Save the sample prompt for launch. Once Tesseract is installed, your local agent can use it to create, preview, and refine an editable project.

Where does the video render?

Tesseract previews and renders locally on a Mac. The local engine is free; your agent’s subscription or usage costs are separate.

Browse all Tesseract features

Your next video, made with your agent.

Professional tools for editing footage, creating motion graphics, and shaping sound.

Coming soon

Free on your Mac. Your agent’s costs are separate.