Play with it online! : http://skeeto.github.io/voronoi-toy/
Video, for non-WebGL capable browsers: WebM H.264
You can drag the vertices around on the fly with your mouse.
- left-click : place a new vertex or move an existing vertex
- right-click : remove a vertex
- A : toggle animation
The diagram is computed and rendered entirely in the GPU via a fragment shader. There's a slow HTML5 canvas fallback for when WebGL is unavailable. Due to OpenGL ES's very small uniform constraints (as little as 16 4-component elements), even high-end GPUs will generally only support around 64 vertices in this demo.