Projected Shadows

...possible in 3D GameStudio with the use of shaders? Not only projected on terrains but also on level geometry and entities in real time so that if a player walks under a tree or near stained glass the pattern is projected on them as well. Does anyone have a working example that I could take a look at or could someone point me in the right direction as to how I would go about setting this up?

I'd even be willing to throw down some cash for working source code and a how-to implement tutorial. Let me know, thanks in advance!