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Post by dryerlint on Mar 7, 2008 6:07:17 GMT -5
I'm fine with pSX' philosophy of no visual improvements if they are at the cost of 100% accurate emulation. But the dithering on gradients always bothered me. Now I've seen that other thread where a user has compared output of a real PSX with pSX and I was surprised to see a difference! You say it's not that noticeable, but to me there is a big difference. So if you could maybe add an option for the dithering. Something like "fast", "accurate" and possibly "none", too. Maybe even a more advanced dithering algorithm, if it's not too much work. By the way, I know this is against accuracy, but I'm curious: how much work would it be to make pSX render in glorious 24bit (making dithering unneccessary)? My guess is this would be near impossible without completely reprogramming the whole graphics emulation, but I thought I'd ask anyway, just to be sure. |
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Post by pSX Author on Mar 7, 2008 7:33:05 GMT -5
I'm fine with pSX' philosophy of no visual improvements if they are at the cost of 100% accurate emulation. But the dithering on gradients always bothered me. Now I've seen that other thread where a user has compared output of a real PSX with pSX and I was surprised to see a difference! You say it's not that noticeable, but to me there is a big difference. So if you could maybe add an option for the dithering. Something like "fast", "accurate" and possibly "none", too. Maybe even a more advanced dithering algorithm, if it's not too much work. See my reply in that thread about why the dithering in pSX is (slightly) less accurate than the real hardware. By the way, I know this is against accuracy, but I'm curious: how much work would it be to make pSX render in glorious 24bit (making dithering unneccessary)? My guess is this would be near impossible without completely reprogramming the whole graphics emulation, but I thought I'd ask anyway, just to be sure. Rendering everything in 24bit would break compatibility because some games use the framebuffer as a texture. |
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Post by dryerlint on Mar 7, 2008 8:42:24 GMT -5
See my reply in that thread about why the dithering in pSX is (slightly) less accurate than the real hardware. Yes, I have read that already. My point was, I think it would be worth the additional CPU usage since the dithering looks better. But I didn't mean to be pushy, just wanted to make it noticed that there is interest in this. |
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Post by psicomaniaco on Mar 7, 2008 12:21:47 GMT -5
My point was, I think it would be worth the additional CPU usage since the dithering looks better. As long as its optional. One of the reasons people like pSX is that most computers can run it at full speed. Things that make it more demanding wouldn't be welcome by everyone. |
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Post by Deleted on Mar 7, 2008 15:00:46 GMT -5
I'm interested in this.
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Post by Ultima on Mar 12, 2008 17:42:29 GMT -5
I may change this in the future (possibly I could make it optional). So uh, pSX Author already said he might implement the change and make it optional -- I don't really see why it needs to be requested again... *shrug* |
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Post by Deleted on Mar 13, 2008 8:05:56 GMT -5
It's all about making it an official request.  |
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Post by Heihachi_73 on Mar 14, 2008 10:25:22 GMT -5
If the dithering is caused by a real PSX then it should be left in. Having it optional would be like comparing pSX with PSEmu style graphics plugins.
I always thought the left-for-dead E}I{'s Soft GPU Plugin under ePSXe et.al. was the most accurate in terms of graphics output, until I discovered pSX. It's definitely the only plugin I used to generate screenshots previously. Now that pSX is working for me again, ePSXe is once again on the backburner.
I have a Tekken 3 screen capture using DScaler but since my card has a hardware MPEG encoder with a hard coded poor compression format, and the combination of using the composite plug. The image looks like crap and is over 500kb after saving as a PNG file (previously an uncompressed 1MB+ TIFF) so it's going nowhere. You can definitely notice the dithering on the ARCADE MODE cursor on the title screen on a half decent (4:3 CRT) TV.
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Post by Deleted on Mar 14, 2008 13:51:08 GMT -5
No one was talking about making dithering optional (as far as I could see anyway). The topic is about two different kinds of dithering, a more accurate one which takes more hardware juice, and the current one, and an option between the two.
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