Jump to content
IGNORED

Pot Auto Adjust & Phasing Color Shifts


Trebor

Recommended Posts

Building off the cumulative knowledge, experience, and feedback from the community, incorporating both phase shifts and pot shifts and have never taken into consideration before that not only can the colors phase shift during the duration of the consoles running time, they can also pot shift, here are the latest palettes, download includes nicely brighten and saturated palettes as well as their respective raw/base values:

2X7-X00_PALETTES_20130906.zip

They are sorted by region and then phase value. Within each phase value (257, 267, 277) there is the pot adjustments (000 = Blue to Red More, 300 = Neutral, 600 = Blue to Green More).

Despite how you set and calibrate the pot adjustment (Dial closest to the cartridge port), it may still end up leaning in one direction or another over time while running. It makes sense to me too, as it explains a while ago when I was calibrating the color on one of my 7800 consoles, I made the appropriate adjustment after it was running for a while, and then after closing it up, putting it back with the rest of my collection, and starting it up again the next day, the pot adjustment looked 'wrong' from the way I recall setting it.

The below chart explains what each capture to follow is displaying. Additionally, you will notice a box is highlighted green; it is the one set with the technically accurate palette. It has a 25.7 degree phase shift along with the pot in the neutral position, leaning blue neither towards red or green more. Within ~2-5 minutes your system should ideally be right around that setting. However, over time the palette can, and for every system I have ever seen or heard about, does shift. How much it shifts and whether it is just the pot or just the phase or both seems to vary greatly.

post-18-0-34697900-1378489889_thumb.png

Below shows the color charts and some in-game captures. NTSC captures are on the left, and PAL captures are on the right. Just to be clear, there are no hue/tint adjustments to any of these palettes. These color changes are strictly what the console can do 'on its own' while the system is running:

post-18-0-73600000-1378489891_thumb.pngpost-18-0-77088400-1378489895_thumb.png
post-18-0-53061600-1378489890_thumb.pngpost-18-0-77989600-1378489894_thumb.png
post-18-0-70981000-1378489892_thumb.pngpost-18-0-81054000-1378489896_thumb.png
post-18-0-81095900-1378489893_thumb.pngpost-18-0-85740200-1378489897_thumb.png

Going back to something mentioned earlier, the 26.7 palette setting still appears to be an ideal choice in accounting for what we know factually of the console shifting - and allowing a modest shift for it, as well as providing a happy medium to games that look ideal at 25.7 degree phase shift - such as Joust, Galaga, Pole Position II, and games that look more ideal under a 27.7 degree phase shift - such as Ikari Warriors, Midnight Mutants, Commando.

Enjoy, and hope you find your palette match. I’m very curious of observations and feedback from our PAL community. Covering which is the closest to what is seen during both a short duration (Running ~5-10 minutes), and then what the colors look like after running for a longer period (~1 hour or more). Of course feedback from our NTSC users is always welcomed and appreciated as well, either via PM or this thread.

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...