Mappertje

Try out the online version of Mappertje

Projection mapping tool for Chrome and Firefox. Apply perspective correction and crop your source (camera or screen) to map it onto a rectangular target surface with corner pinning.

Download the browser extension from the Chrome Web Store

The Mappertje extension integrates directly with my Pop-out Jitsi Meet extension.

Thanks to

• Videokaffe and their regular projection mapping sessions.
• The perspective-transform library for tackling the math.
• The TypeScript implementation of change-perspective.
• PerspectiveTransform.js for error checking inspiration.
• Kirupa Chinnathambi for the nice dragging tutorial.
• Rodrigo Damasceno for his solution to make lines between points.