dave's blog of art and programming

missing acceptable use policy

A realtime shadow that softens as it recedes from the edge of the object. This is done by projecting the object's geometry onto the plane from the direction of the light source - which essentially flattens it out like a pancake. Do this lots of times, jittering the light position a bit each time, and accumulate the result by using a suitable blendmode. Fluxus code here.