[comp.sys.mac.programmer] How can I display graphics FAST?

lopes@cogsci.ucsd.EDU (alann lopes) (01/03/91)

  Hello everyone, 

  I need to dispaly images very fast on a Mac II, to 
  do some psychology experiments. I'm hoping for speeds <= 25 ms. How
  can I do this?  I've tryed building offscreen pixmaps and then
  using copybits. This method is just too slow! I want to stay away
  from palette tricks, because often I will need to display five or
  more images.

  I heard that the graphics card on the Mac II actually has two video
  pages, and that you can switch between them very fast ( on the
  order of what I need). The problem is that I haven't been able to
  find any documentation on how to do this, or if it's even possible.
  I've called Apple with no results.  Can somebody HELP ME PLEASE?
  

               Thanks very much -- alann


--------------------------------------------------------
   alann lopes:        alopes@ucsd.edu       -- internet
   Programmer/Analyst  lopes@cogsci.ucsd.edu -- internet
   (619) 534-7417      ALOPES@UCSD           -- bitnet
                       ...!ucsd!alopes       -- uucp
--------------------------------------------------------