I'm implementing volume shadows in my engine, but I have this problem:
when rendering, I see a lot of visual artifacts, due to the facts that the objects seems to be *covered* with shadows. (see this shot: http://nade.altervista.org/temp/shadowtest.jpg
As you can see, shadows are drawn correctly, but there are too much artifacts.
Note that I render the scene in 2 passes: the first with D3DRS_DEPTHBIAS set to 1, and the second (the actual shadow pass) with the same state set to 0, but this doesn't seem to change anything...
[italic]How beautiful, if Sorrow had not made sorrow more beautiful than Beauty itself.[/italic]