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C64 Emulator Palette from my NTSC 1702
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r.cade
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PostPosted: Thu Sep 24, 2009 11:48 pm    Post subject: C64 Emulator Palette from my NTSC 1702 Reply with quote

I've never been quite happy with the palette in the different C64 emulators. I tried the "pepto" palettes which is supposed to be right, but it looks nothing like my real setup. Adjusting the saturation and other items makes it no closer to my "real" 1702 and C64.

I know that the palettes differ between C64's and 1702's and depend on people's tastes, but below is one that matches my setup exactly. My 1702 is set to the detent on all knobs and I am using an Acer 22" LCD set to defaults (which makes a difference also for matching purposes).

Cut/paste it into a file called 1702.vpl and load as an external palette into VICE (or CCS) and you can see if it matches your setup.

^^^snip^^^

# Pete Rittwage's NTSC C64 and 1702 palette V2
# Taken from 6567R8 on a 1984 board (250425)
00 00 00 0
FF FF FF E
90 30 40 4
93 ff ff C
70 2b ff 8
40 b7 10 4
20 00 bf 4
e0 e0 60 C
b0 50 30 4
80 30 00 4
ff 7b 9e 8
40 40 40 4
90 90 90 8
90 ff 90 8
30 60 ff 8
c0 c0 c0 C
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Last edited by r.cade on Sat Sep 26, 2009 2:47 am; edited 1 time in total
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hurminator
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PostPosted: Fri Sep 25, 2009 1:07 am    Post subject: Reply with quote

Wow, looks really good in VICE! Thanks Very Happy
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Kong Daddy



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PostPosted: Fri Sep 25, 2009 1:02 pm    Post subject: Reply with quote

I've got two CRT TVs (Sony and Panasonic) and two 1084 monitors (1084S and 1084SD) and the colours will look slightly different on all four here in both saturation and tint at default settings so I wouldn't worry about 100% accuracy just as long as they 'look right' which I agree they don't on a lot of emulator used with laptops or LCD monitors.

Now if someone makes an LCD that makes games look as awesome as the old 1980s Trinitron CRTs that would be great Smile
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r.cade
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PostPosted: Fri Sep 25, 2009 1:10 pm    Post subject: Reply with quote

Definitely there is another effect at work that can't be replicated.

There is an extra "something" that affects contrast that isn't replicated on the LCD. When run on TV-OUT from my video card, it is close (other than being scan-doubled).
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groepaz
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PostPosted: Fri Sep 25, 2009 1:11 pm    Post subject: Reply with quote

most importantly there is ntsc encoding/decoding going on ... using a simple palette and then no pal emulation (which in this case is no different from ntsc) will never look right.
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stahlhart
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PostPosted: Fri Sep 25, 2009 8:11 pm    Post subject: Reply with quote

Thanks for posting this -- it looked really close for me.

My first job was servicing television sets, when I was in high school... back then the rule of thumb was always to get the flesh tones to look natural and correct, and then everything else would more or less fall into place from there. Given that the 1702 can still be used that way, it still at least gives some frame of reference.

On my 1702s I set the color/brightness/contrast/tint knobs to the detents and then finished the job from the internal adjustments in back.
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Paratech
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PostPosted: Fri Sep 25, 2009 8:31 pm    Post subject: Reply with quote

Thanks Pete!
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gyro
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PostPosted: Sat Sep 26, 2009 12:51 am    Post subject: Reply with quote

I just tryed this. Commodore has never looked better on the PC. Thanks! I can now use it for my PAL demos that don't work well in the 1541-U.
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r.cade
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PostPosted: Sat Sep 26, 2009 2:24 am    Post subject: Reply with quote

Subtle but effective new version fixing orange, brown, and green to be even closer.

# Pete Rittwage's NTSC C64 and 1702 palette V2
# Taken from 6567R8 on a 1984 board (250425)
00 00 00 0
FF FF FF E
90 30 40 4
93 ff ff C
70 2b ff 8
40 b7 10 4
20 00 bf 4
e0 e0 60 C
b0 50 30 4
80 30 00 4
ff 7b 9e 8
40 40 40 4
90 90 90 8
90 ff 90 8
30 60 ff 8
c0 c0 c0 C

VICE default palette:



My 1702 palette:



The blues, purple, pink, orange, and brown are way off in most palettes. Smile
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Last edited by r.cade on Sat Sep 26, 2009 2:44 am; edited 1 time in total
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gklinger
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PostPosted: Sat Sep 26, 2009 2:39 am    Post subject: Reply with quote

Me likey! Thanks for the contribution, r.cade.
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r.cade
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PostPosted: Sat Sep 26, 2009 2:46 am    Post subject: Reply with quote

I updated the above post with a new version, so grab it now for an improvement in the orange, brown, and green.
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r.cade
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PostPosted: Sat Sep 26, 2009 2:51 am    Post subject: Reply with quote

How much different than this does a PAL 1702 look with a PAL 6569? Can anyone snap a picture or something usable?
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Fröhn
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PostPosted: Sat Sep 26, 2009 3:47 am    Post subject: Reply with quote

r.cade wrote:

VICE default palette:



My 1702 palette:



The blues, purple, pink, orange, and brown are way off in most palettes. Smile

Per default Vice doesn't use "a palette" but uses measured values and some formulas to calculate the palette according to your settings.

Just go to the following menu: Settings -> Video settings -> Colors and raise the saturation a bit.
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r.cade
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PostPosted: Sat Sep 26, 2009 3:57 am    Post subject: Reply with quote

Tried that before I recreated the palette. Saturation doesn't fix the wrong hues for me.

Keep in mind that this was done to match my 64/1702, not dispute which are the "correct" colors. Smile
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Fröhn
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PostPosted: Sat Sep 26, 2009 5:40 am    Post subject: Reply with quote

The problem is: There is no "right palette". Have you checked the color temperature settings of your monitor? The gamma correction? The RGB weightings? There are tons of variables on PC which make the same RGB values look very different on different systems.
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PostPosted: Sat Sep 26, 2009 6:27 am    Post subject: Reply with quote

r.cade wrote:
Subtle but effective new version fixing orange, brown, and green to be even closer.

My 1702 palette:


The blues, purple, pink, orange, and brown are way off in most palettes. Smile


Purple seems to be a bit closer to light blue...?

Interesting palette though.

My C64 and flat C128 connected to a tv produces colors more in line with VICE's default palette interestingly enough:



It's nice to have an additional palette choice for VICE.

Fröhn wrote:
The problem is: There is no "right palette".


Quite true.
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groepaz
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PostPosted: Sat Sep 26, 2009 9:07 am    Post subject: Reply with quote

if you use a fixed palette (and that means you turn of PAL emulation). you don't bother about the colors beeing correct at all. *sigh*

somehow this is history repeating - back to 1996 and its shitty handtuned emulator colors.
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r.cade
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PostPosted: Sat Sep 26, 2009 2:50 pm    Post subject: Reply with quote

groepaz wrote:
if you use a fixed palette (and that means you turn of PAL emulation). you don't bother about the colors beeing correct at all. *sigh*

somehow this is history repeating - back to 1996 and its shitty handtuned emulator colors.


Well, by all means keep using the ugly default palette. Nobody is forcing anyone to use any "shitty" palette. The default looks like no C64 I've ever used in NTSC, through composite, s-video, or RF.
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r.cade
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PostPosted: Sat Sep 26, 2009 3:10 pm    Post subject: Reply with quote

Garak wrote:
r.cade wrote:
Subtle but effective new version fixing orange, brown, and green to be even closer.

Purple seems to be a bit closer to light blue...?


Purple and orange seem to get the most "corrupted" between my LCD and CRT. Purple is more towards blue on my TV vs. my 1702. I chose to stick with the 1702 version.
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groepaz
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PostPosted: Sat Sep 26, 2009 4:54 pm    Post subject: Reply with quote

Quote:
Well, by all means keep using the ugly default palette. Nobody is forcing anyone to use any "shitty" palette. The default looks like no C64 I've ever used in NTSC, through composite, s-video, or RF.


its not just the palette. the tv encoding/decoding has a huge impact on the final image too, what you see on the tv isnt just a 16 color image. so when you turn off pal emulation, you wont ever get an authentic reproduction of what a real c64 looks like.

(and i am quite sure that you can tweak the palette generator so it will look similar to what you are used to)
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PostPosted: Sat Sep 26, 2009 5:06 pm    Post subject: Reply with quote

r.cade wrote:
Subtle but effective new version fixing orange, brown, and green to be even closer.

# Pete Rittwage's NTSC C64 and 1702 palette V2
# Taken from 6567R8 on a 1984 board (250425)
00 00 00 0
FF FF FF E
90 30 40 4
93 ff ff C
70 2b ff 8
40 b7 10 4
20 00 bf 4
e0 e0 60 C
b0 50 30 4
80 30 00 4
ff 7b 9e 8
40 40 40 4
90 90 90 8
90 ff 90 8
30 60 ff 8
c0 c0 c0 C

VICE default palette:



My 1702 palette:



The blues, purple, pink, orange, and brown are way off in most palettes. Smile


Those adjusted colours are nothing like any of my PAL C64s on a quality Panasonic and Sony CRT tube...it's not just the saturation the light blue border looks too close to cyan on those settings and the purple doesn't look right....a bit too 'Amstrady'

NTSC problem or just down to the bargain bucket tube in Commodore monitors.
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groepaz
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PostPosted: Sat Sep 26, 2009 5:07 pm    Post subject: Reply with quote

Quote:
NTSC problem or just down to the bargain bucket tube in Commodore monitors.


its mostly a ntsc problem, it is called "never the same colors" for a reason =)
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r.cade
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PostPosted: Sat Sep 26, 2009 5:32 pm    Post subject: Reply with quote

So the default palette of a PAL C64 is what VICE looks like by default?
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groepaz
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PostPosted: Sat Sep 26, 2009 5:46 pm    Post subject: Reply with quote

Quote:
So the default palette of a PAL C64 is what VICE looks like by default?

yes and no. the palette generator is modelled after how the VIC generates the colors, it has nothing to do with pal or ntsc. so that part is valid for both. the default settings however are vaguely similar to how a pal c64 looks like when connected to a 1701 with neutral settings.
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PostPosted: Sat Sep 26, 2009 7:11 pm    Post subject: Reply with quote

r.cade wrote:
The default looks like no C64 I've ever used in NTSC, through composite, s-video, or RF.


Heh, I've run into the reverse, my C64 and C128 (through composite, s-video, and rf) on two tv's (20 year age difference) show a palette extremely close to the VICE default one. A friends' C64 does on his tv as well.

I'm not surprised about some of the differences between C64 due to all the things that can influence color changes from tv/monitor settings being adjusted differently to the mis-adjustment of the, iirc, certain pot(s) in the C64's video circuitry.
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