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[quote=103048]I think the ROM I had was already MSX. Now I finally found out how to change the emulater. So I chose lr-fba. But now performance is worse than before. The slowdown now affects the music wich it didn’t before and it occurs more often.
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try the pifba emulator. it’s faster than lr-fba/gngeo, although lacks retroarch features.
also, you say you’ve overclocked to the ‘maximum’ – is it stable? if the pi is struggling for volts or temperature, you’ll see a flashing graphic in the corner and it downclocks briefly, slowing everything down (not sure about for volts – it might just crash!)
[quote]It’s a feature of the image you’re using and the type of scaling that you’re applying. I just confirmed this by looking at the full size image you linked to- check the blue area in the Sonic screenshot. The scanlines in this area should be uniform at 800% zoom, but they aren’t- this can create the described moire effect.[/quote]yes, but as i said (4 times, now), I a similar effect because of my TV, even when using no scnaline. I do NOT get this effect when using lower opacity on the scanlines, scaling or not. Apparently you are unable to take my word for it, so here’s some screenshots (ignore the vertical white ‘ovals’ as they are just an effect of my phone camera):
Wii.png scanlines, 1.00 opacity at 6×5 integer scaling (216 line image)
Wii.png scanlines, .35 opacity at 6×5 integer scaling (216 line image)
at 1.00 I get a strange variance between the scanlines that is distracting, to me. lower the brightness and it goes away. This was before I started messing with scaling or any scanline pngs. The scanlines are more visible in real life than the second screenshot, but I don’t get the effect.
[quote]That isn’t related to nearest neighbor per se, it’s a function of how the image is being scaled. Nearest neighbor will result in the most accurate scaling with the fewest artifacts.[/quote]clearly you haven’t tried it. here’s what nearest neighbour scaled (224 lines in 1080) scanlines look like close up:
compare that to my scanlines posted in my screenshots.
[quote]You seem to think that the padding is meant to be displayed, when it gets cropped on a CRT. Just because the graphics aren’t glitched at the top/bottom doesn’t mean it’s not padding. Notice how the score/time/rings display and the Sonic lives display is not right at the edge? That’s because some TVs would drop right up to those graphics. Heck, I’ve got a cheap Sanyo CRT that crops even more than this- the top two lines where it says “score.” This is not an old TV, but one from the mid 2000s.
Since CRTs varied in how much they cropped, the game developers had to allow for this by placing all important graphics within the safe area. If they put those graphics right at the edge, they’d be cut off most of the time on a CRT.[/quote]
i say again, most TVs displayed the centre 224 lines. http://wiki.nesdev.com/w/index.php/Overscan: “Actual TVs show about 224 lines of the signal, hence the commonly reported 256×224 resolution. But the vertical position may be slightly off center.” – this is why almost all games will render the playing field for the full 224 lines, knowing that most users would see it, rather than show borders because some users wouldn’t. “In fact, even some CRT SDTVs made in the 2000s show more of the bottom than the top; this may be so that tickers on cable news channels aren’t cut off.” – this might account for your TV, but for those of us who want to emulate TVs from the era, showing the full 224 lines is accurate (and shows more of the game).[quote]I haven’t looked at windjammers, but nothing important should be cropped at 5x integer if crop overscan is on the right setting for the core being used and you are scaling up from the right resolution.[/quote]
i posted a screenshot, dude! All neogeo games are like this – go check for yourself. you even posted this earlier in the thread
[quote]I haven’t tested Neo Geo, but I think it varied, with the most common being 264 with overscan (240 without)[/quote]
240*5=1200, which means a 1080p TV would crop out 60 pixels (12 lines) from the top and bottom of the ‘post overscan’ image.examples:
windjammers (neogeo), integer scaled at 5×224
sf3 (cps3), integer scaled at 5×224
I’m about done with this conversation. If you’ve found a solution that works for you – great! For people who want to play neogeo or (many) arcade games, at full screen, without cropping information – this is the only solution. The rest comes down to personal opinion about what parts of the screen are important/not important, and what CRTs you are used to.
