gri, it's shadowmapping with PCSS and PSSM. the framerate is set to 70fps by code, look in the shadowdemo.c file!!!!!!!!!!!!!!!!
AND IT IS A BETA VERSION!!!!!! BETA MEANS: NOT FINISHED AND SLOW!!!!!!!!!!!!!!!!!!!! OK?

@Quadraxas: on my vista system it also doesn't work, where did you exactly put the wait(1); ?

@zSteam: the next version, supports ps_2_0 and ps_2_a and b!