On 21 Oct 2006 at 14:49, Lenard Lindstrom wrote: > On 21 Oct 2006 at 14:15, Farai Aschwanden wrote: > > > Hello all > > > > Anyone of you is experienced in darkening an area from daytime to > > nighttime? > > > > - Alpha filter? > > - Setting image pixels to darker value? > > - ??? > > > > I couldn't find anything affecting contrast in Pygame that would help > > either. > > > > Any ideas are welcome. > > > To fade an image to black repeatedly alpha blit it with an all-black > image having a small alpha value like 1. In fact - I have only just > tried it - this should work as general way to fade from one image > to another. So you can fade from a daytime to a nighttime image. > Actually I was too quick to post. The general case of fading from one image to another does not work (my test program blitted to a white background). But the fade-to-black does.
Lenard Lindstrom <[EMAIL PROTECTED]>
