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Author Topic: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)  (Read 21167 times)

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Offline kindermoumoute

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #45 on: December 14, 2010, 11:59:20 am »
Ok, if i've time, i'll post commented code.
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Offline DJ Omnimaga

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #46 on: December 14, 2010, 11:15:07 pm »
Quote from: Art_of_camelot on December 14, 2010, 05:57:46 am
^What DJ said. 8 is doable, but some of the shades are not very distinguishable from one another on calc. =(
Well it depends. On the 83+SE and the 84+ it looks pretty fine. It's just on the old 83+ that it looks crappy.
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Offline TIfanx1999

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #47 on: December 15, 2010, 04:16:03 am »
Ah, when I had Ti1plea's 8 level demo on my 83+ SE, it looked ok, but some of the lighter shades were really hard to see and a some of the dark ones looked similar. In my case, it actually looked better on my regular 83+ BE. Go figure, Ti with there crappy inconsistent LCDs...
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Offline DJ Omnimaga

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #48 on: December 15, 2010, 04:17:08 am »
Strange, I guess my old 83+ has a crappier LCD. But again, if you got an even older 83+ it might be why on yours it looked better.
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Offline TIfanx1999

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #49 on: December 15, 2010, 04:19:02 am »
I got it second hand so I have no idea. I just wish their product quality levels were more consistent. :/
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Offline DJ Omnimaga

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #50 on: December 15, 2010, 04:21:28 am »
Me too. It makes it impossible to have the same grayscale quality on all calc. Everyone has to test and the programmer has to calibrate. I think most people gave up on that and now try to make grayscale just look good enough instead of nearly perfect.
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Offline matthias1992

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #51 on: December 18, 2010, 05:30:26 pm »
*bump* probaly I jsut have a crappy LCD but if I set the program on the end of page 1 to Full it doesn't work in the sense that it displays all kinds of garbage all over the freaking place. I did run ALCDFIX before trying, same result.

Any clue on why this happens?
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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #52 on: December 18, 2010, 05:34:12 pm »
Quote from: matthias1992 on December 18, 2010, 05:30:26 pm
*bump* probaly I jsut have a crappy LCD but if I set the program on the end of page 1 to Full it doesn't work in the sense that it displays all kinds of garbage all over the freaking place. I did run ALCDFIX before trying, same result.

Any clue on why this happens?
Does it set it to Normal right before DispGraphrr?
Because the DispGraphr and DispGraphrr only work in 6Mhz mode. You could have the code set Normal right before the DispGraphrr and Full right after, though.
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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #53 on: December 18, 2010, 05:51:24 pm »
Quote from: DJ Omnimaga on December 15, 2010, 04:21:28 am
Me too. It makes it impossible to have the same grayscale quality on all calc. Everyone has to test and the programmer has to calibrate. I think most people gave up on that and now try to make grayscale just look good enough instead of nearly perfect.

I figured out how to combat the poor 4 level gray display on the 83+ -- by using 8 level gray :D

basically, all you have to do is change the 4 level routine to 8 level display, but still only read from 2 buffers.  Then for the two grays, you pick the two colors closest to 50% gray, and it should work fine and  look fantastic, but a bit more flickery :)
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Offline DJ Omnimaga

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Re: Axe 8-level (ish :P) Greyscale (With Code Example!!!!)
« Reply #54 on: December 18, 2010, 07:44:10 pm »
You mean you just flash those additional levels of gray? I think Calc84maniac actually just used more spaced scanlines actually. In calc84's case, I think it takes 3 sprites.
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