   Alpha masks in SDL?
  Hey all! [smile]I was wondering if it is possibly to have an "Alpha" mask in SDL. Basically, have a Black & White (aswell as all the grey tones in between them) SDL_Surface, that I can 'overlay' on an existing SDL_Surface so that when I blit, it changes the transparency of the Image SDL_Surface depending on the colors of the Alpha-mask SDL_Surface. Sorry if this sounds confusing, let me know if I need to explain something better here. Thanks in advance! [smile]   
  It is possible.  Check the Doc Wiki for details.  One thing you have to consider is the blit command is different for per-pixel alpha.Also note that SDL version 1.2.x uses software rendering rather than hardware acceleration so you might prefer to use OpenGL under SDL or skip SDL altogether and use another hardware-accelerated OpenGL-based API such as SFML instead.   