+Stephen #1 Posted February 13, 2003 I've seen most of the amazing demos for the Atari 8-bit from 1996 and up. Drunk Chessboard is one of the most impressive to me, mainly because it is so fast, the music is absolutely astounding, and the color plasma is great. Does anyone have any ideas how some of the effects were done? Mainly, the super fast zooming and scaling of the black and white chessboards? Stephen Anderson Quote Share this post Link to post Share on other sites
Heaven/TQA #2 Posted February 13, 2003 i would have to ask fox our main coder how it is done but i would do it in this way: precalculate a complete scanline from 1 pixel squares to full square into memory... duplication vertically is done via display list manipulation... this is really fast as you just have to build the display list every vbl... ah... as fast as i can remember the "drunken chessboard" logo is in front of the chessboard so it can not be done with my way as the routine has to fill the screen ram. the plasma is simple gr.9/11 + DLIs... nothing special... (oops... sorry fox...) but the best in this intro is the music... any other ideas (without looking into the code...)? hve Quote Share this post Link to post Share on other sites
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord