RetroPie forum home
    • Recent
    • Tags
    • Popular
    • Home
    • Docs
    • Register
    • Login

    Graphical palette tweak/enhancements for Atari 800 / Atari 5200 emulation

    Scheduled Pinned Locked Moved
    General Discussion and Gaming
    atari800 atari 800 atari 5200 colors brightness
    1
    1
    1.2k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • P
      pjs
      last edited by pjs

      Hello,

      Just thought I would share some tweaks I did for the Atari800 emulator which made my image 100% better. It now resembles the accuracy of the Atari 3200 or 7800 emulation. This will vary from one display to another, but in general the default palette has too much brightness and dull colors. These atari800.cfg settings fixed it for me. The blacks are now 100% dark (not grey) and colors are vivid. I compared it to the darkness of 3200 and 7800 and they are identical now.

      COLOURS_NTSC_SATURATION=0.5
      COLOURS_NTSC_CONTRAST=0.5
      COLOURS_NTSC_BRIGHTNESS=-0.5
      COLOURS_NTSC_GAMMA=1.2

      Feel free to fine tune for your display.

      Note: these settings are for NTSC so DEFAULT_TV_MODE=NTSC should be set in the config. If you use PAL ROMs, you'll want to have DEFAULT_TV_MODE=PAL set and change the same settings for COLOURS_PAL instead of NTSC.

      1 Reply Last reply Reply Quote 5
      • First post
        Last post

      Contributions to the project are always appreciated, so if you would like to support us with a donation you can do so here.

      Hosting provided by Mythic-Beasts. See the Hosting Information page for more information.