I have no idea why people in this thread were so sceptic. It works perfectly. Besides the usual error messages on the console it looks perfect, just with low FPS (9-10). Playing with the buffer size or blurSharpen doesnt improve things.
Mac OS X.6.6.
Sothh:
Here is a shadow demo that uses no shaders (except the built in screen blur), renders very fast, and gives soft shadows.
mediafire.com/?5rdwlfudc2gigsw
It works like this:
The scene is rendered without any lighting and textures and materials turned off by a camera placed at the lights position and pointed at the center of the screen onto a “Shadow” buffer. The buffer has a black background, and objects are rendered solid white. The ground is not rendered. The buffer is blurred using CommonFilters, then its texture is captured and projected back onto the scene from the cameras position and rotation.
This projected texture is applied using the blend mode, which makes anything white look dark on the ground, and black pixels are see through.