Running image triangulation and extrusion
An efficient way of planar triangulation for images with an alpha channel
More About This Demo From The Author
This is a technique I came up with for extruding planar geometry from images. It was inspired by a blob tracking algorithm called "one pass, run based, component labelling". The novelty lies in the way of dealing with holes which negates the need to insert elements on the vertices array. It produces decent polygon counts but it's main point is speed, even with large image resolutions, making it a good solution for interactive generation of models. The generated geometry is watertight and t-junction free making it suitable for viewing but especially for 3d printing(this was actually the need that called for it). A paper describing the technique has been submitted to the journal of computer graphic techniques, in the meantime the source code is contained in one file(CanvasGeometry.js)
Get the Source Code
This demo is released under the GPL license.