It will be Lite-C only and should be used with A7.5 and above.

ventilator, sorry that I didn´t answer earlier... I´ve got a 8800gts 640mb.

I am of course still working on this, but I have currently less time and am still trying to get rid of artefacts and to blurr the shadows. Blurring turned out to be a lot harder than I expected, I can blur the depthmaps for VSM, but the performence gets somehow very bad then. Some more advanced PCF in one pass is even slower and both techniques especially PCF have problems with "surface acne". Sure it can be tweaked with a bias, but that is not really perfect.