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render-whiteboard-explainer

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Assemble a whiteboard explainer video ad from a beats file — a narrator explains one idea while a real whiteboard fills up in black marker, with a hand-lettered title, bulleted rows down the left, a drawing filling the right, and a payoff that letters the closing line and rings the claim. The board is a PHOTOGRAPH and the ink is multiplied onto it, so the surface sheen and window light come through the strokes; the drawings are generated as line art and traced to ordered strokes, then revealed in drawing order on the word they belong to. The layout is SOLVED from the beats, never hand-placed. FREE assembly (Pillow plus ffmpeg) apart from one board photo and one drawing per subject, both one-time per brand. Use for the whiteboard format.

skills/video/render-whiteboard-explainer/SKILL.md

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Nov 6, 2026
License
MIT

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# render-whiteboard-explainer

The renderer for the **whiteboard** video ad format: a voice explains one idea while a board
fills up in marker, the way a graphic recorder works a room. Every mark lands on the word it
belongs to, and the board is wiped and reused between sections.

Siblings in the chat-UI family are `render-imessage-chat` and `render-chatgpt-chat`, where a
screen is the creative. Reach for this one when the creative
is **someone explaining a thing by drawing it**.

## The three decisions that make this format work

**The board is a photograph.** A drawn board reads as a drawn board, and a plain white frame
reads as a sketch film. Both were built and both were rejected. One generated still of a real
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