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by cacophony
Sat Oct 20, 2018 6:19 am
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

Thanks for the newest update Sorgelig! Really glad you were able to make the scaling configurable.

The only issue I've noticed so far is that in Gauntlet 4 the movement is very slow and choppy. I haven't tested it in any earlier builds so I'm not sure if it's a regression or not.
by cacophony
Thu Oct 18, 2018 6:02 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

Sorgelig wrote:It seems Polyphase can be turned to Near Neighbor by coefficients.
Testing now - and it looks exactly the same as NN.


Great news! :D
by cacophony
Thu Oct 18, 2018 6:44 am
Forum: MiSTer
Topic: Poll about prefered scaling quality
Replies: 29
Views: 3658

Re: Poll about prefered scaling quality

(1) I actually do know what I'm talking about. Not "having a strong opinion about something I haven't tried". I've written several crt style scanline shaders for retroarch and MAME. I've had to worry about proper interpolation and how to balance sharpness vs shimmering. Also I'm a mathema...
by cacophony
Wed Oct 17, 2018 10:16 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

I know that you know, but just in order to have a common and established frame of reference with everyone in this discussion: this is scrolling shimmering There is no noticeable shimmering as i've already told. So, scrolling is like bottom Mario. That's setup-dependant, while we had no shimmering o...
by cacophony
Wed Oct 17, 2018 9:44 pm
Forum: MiSTer
Topic: Poll about prefered scaling quality
Replies: 29
Views: 3658

Re: Poll about prefered scaling quality

I've seen plenty of shimmering on other hardware, but I do not see shimmering with NN scaling on MiSTer in the Genesis, TG-16, NES, or SMS cores. That proves you don't know what's happening here: The TG-16, NES and SMS cores are STILL safe from this horrid NN scaling method. Nope, I have custom NN ...
by cacophony
Wed Oct 17, 2018 8:59 pm
Forum: MiSTer
Topic: Poll about prefered scaling quality
Replies: 29
Views: 3658

Re: Poll about prefered scaling quality

Hi, I've just recently discovered MiSTer. Well not really since I've followed emulation and fpga projects since the 90s. But I'm currently looking to source some of the needed boards and make a purchase. I don't want to come across as abrasive, but nearest neighbor scaling is just stupid in a proje...
by cacophony
Wed Oct 17, 2018 5:00 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

I compared Sonic (JPN) version for the latest core vs the version from the 10th, and the smoothness of movement for the clouds look identical. That's because your 4K display's native resolution is 3840 x 2160 pixels, which is an exact multiply of 320x240 !! It's pure LUCK that you can't see them. B...
by cacophony
Wed Oct 17, 2018 4:54 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

As was already mentioned earlier in this thread, this scaling option can only be set at compile time. So it's either one or the other unless Sorgelig is willing to start providing two builds. I think all those horrible video artifacts you're seeing have everything to do with the 1360x768 monitor yo...
by cacophony
Wed Oct 17, 2018 4:47 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

So here's where this NN stuff originated. So sad it's by default now on Genesis core... I hope it does not propagate to other cores, really. Looks like rubbish on non-integer scaling, full of crawling. Consoles didn't look like this back in the day: analog displays just didn't show razor-sharp pixe...
by cacophony
Wed Oct 17, 2018 4:27 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

So here's where this NN stuff originated. So sad it's by default now on Genesis core... I hope it does not propagate to other cores, really. Looks like rubbish on non-integer scaling, full of crawling. Consoles didn't look like this back in the day: analog displays just didn't show razor-sharp pixe...
by cacophony
Wed Oct 17, 2018 4:10 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

So here's where this NN stuff originated. So sad it's by default now on Genesis core... I hope it does not propagate to other cores, really. Looks like rubbish on non-integer scaling, full of crawling. Consoles didn't look like this back in the day: analog displays just didn't show razor-sharp pixe...
by cacophony
Wed Oct 17, 2018 6:27 am
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

Any idea what could be causing the intermittent background audio crackle that's noticeable in certain games such as Castle of Illusion ?
by cacophony
Tue Oct 16, 2018 2:14 am
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

Agreed, the Genesis core is looking better and better. Every game I've tried has worked well and the image quality is stunning :D

Only issue I've noticed is the audio crackling in certain games (Castle of Illusion, etc)
by cacophony
Tue Oct 16, 2018 1:16 am
Forum: Website Discussions
Topic: Unable to register due to "suspicious" email address
Replies: 17
Views: 5255

Unable to register due to "suspicious" email address

Hi,

I know somebody who has been unable to register on this site because all the emails he has tried are being flagged as suspicious, including his official ISP address. Is there somebody that can help resolve this for him?

Thanks!
by cacophony
Tue Oct 16, 2018 12:58 am
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

New Genesis release uses NN scaling. Scanlines effect suffer a lot with this scaling, so i had to re-work it. It doesn't fade every odd line of original video like it was before, but doing fade of lines in scaled video. You made my day Sorgelig, thank you! :D I really appreciate the work you put in...
by cacophony
Mon Oct 15, 2018 5:21 pm
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

Scaling algo is set at compile time. There is no way to change it in runtime. As for quality - it depend on picture. The sample you show is kind of photo where separate pixels aren't matter. But if HDMI resolution will be smaller and there will be text, then you will see that some scaled pixels are...
by cacophony
Mon Oct 15, 2018 5:13 am
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

Here's TG-16 with nearest neighbor: https://cdn.discordapp.com/attachments/497145588446396416/501229507231875073/tg16_nn.PNG (full res: https://cdn.discordapp.com/attachments/497145588446396416/501229507231875073/tg16_nn.PNG) The more I play with it the more I appreciate the improvement in image qua...
by cacophony
Mon Oct 15, 2018 4:29 am
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

dupe post sorry
by cacophony
Mon Oct 15, 2018 4:28 am
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

I'm not sure if anybody has reported this yet, but there's an intermittent background audio crackle that occurs in many games. I noticed it a lot in Castle of Illusion during the intro part and during game play. Others have mentioned crackles in Castlevania Bloodlines and Vampire Killer as well. Som...
by cacophony
Mon Oct 15, 2018 3:05 am
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

Scaling algo is set at compile time. There is no way to change it in runtime. As for quality - it depend on picture. The sample you show is kind of photo where separate pixels aren't matter. But if HDMI resolution will be smaller and there will be text, then you will see that some scaled pixels are...
by cacophony
Mon Oct 15, 2018 2:14 am
Forum: MiSTer
Topic: Possibility of sharper HDMI output via integer scaling?
Replies: 119
Views: 12926

Re: Possibility of sharper HDMI output via integer scaling?

nearest neighbor is good only for integer scaling. For non-integer scaling it looks like rubbish. The quality of scaling increase in this direction: nearest neighbor -> bicubic -> polyphase Rysha on the classic gaming discord compiled a build with nearest neighbor, and the consensus over there is t...
by cacophony
Sun Oct 14, 2018 8:03 pm
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

Sorgelig wrote:Download the last release again!
Fixed Jim Power.
Probably HDMI will be fixed for those who got glitches if it's metastability problem.


On quick inspection, looks great! :D
Thanks for the quick fix and all your hard work.
by cacophony
Sun Oct 14, 2018 7:06 pm
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

For whatever reason (maybe TV dependent), the graphical issues don't look nearly that bad for me
by cacophony
Sun Oct 14, 2018 6:29 pm
Forum: MiSTer
Topic: Genesis Core
Replies: 468
Views: 95782

Re: Genesis Core

Ah, this is probably what you're talking about:

Image

This is a direct capture from Rysha on discord. On my TV it doesn't look this noticeable, but I do see these new artifacts around edges

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