Sega 32X Core

Megahurtz
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Re: Sega 32X Core

Unread post by Megahurtz »

Rolygon wrote: Sat May 21, 2022 3:54 am
MiSTerEggman wrote: Wed May 04, 2022 3:38 pm Im using Antonio villena's s-video with analog io board to a 14" CRT

the colors are washed out / inaccurate / lots of flickering on this core... anyone else?

Tried switching the physical switch from auto to ovr on io, still doesnt fix it.

Looks fine over HDMI to my flat screen.
Yup, I too am having the same issue with that adapter.
Me three. There is a GitHub issue open for it:
https://github.com/MiSTer-devel/S32X_MiSTer/issues/15

MikeS chimed in there and said it is due to the transcoder chip's inability to match the core to NTSC frequency. There are a few older arcade cores that exhibit the same issue for me, but console cores have been perfect up until now. I'm hoping either the 32X core gets updated and fixes this or MikeS's s-video work gets incorporated into the mainline cores.
bvdh85
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Re: Sega 32X Core

Unread post by bvdh85 »

Hi all,
32x core is working great! Tx for all the work.
One evt. improvement: i am playing on a crt. Every time I start the core, screen is flickering. After loading a game everything runs fine. Also the menu when accessing via R2 when a game runs.
Torgo
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Re: Sega 32X Core

Unread post by Torgo »

The Doom Resurrection 2.0 not only runs great on this core, but it's also a really impressive mod. This is definitely better than the Jaguar version now.
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Chris23235
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Re: Sega 32X Core

Unread post by Chris23235 »

bvdh85 wrote: Thu May 26, 2022 6:25 am Hi all,
32x core is working great! Tx for all the work.
One evt. improvement: i am playing on a crt. Every time I start the core, screen is flickering. After loading a game everything runs fine. Also the menu when accessing via R2 when a game runs.
The lighting of the Jaguar version still outshines the (very impressive) Resurrection 2.0 mod. On the Jaguar you will find a much more vibrant ambient lighting that affects your own weapon the enemies. Compare these 2 clips where the player uses the radiotion suit.

32X
https://youtu.be/g6QfYoAof4E?t=2890

Jaguar
https://youtu.be/eZR-IVNJALQ?t=3258

On the other hand, having music ingame was always a plus of the 32X version.
Barone
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Re: Sega 32X Core

Unread post by Barone »

Chris23235 wrote: Tue Jun 14, 2022 12:24 pm
bvdh85 wrote: Thu May 26, 2022 6:25 am Hi all,
32x core is working great! Tx for all the work.
One evt. improvement: i am playing on a crt. Every time I start the core, screen is flickering. After loading a game everything runs fine. Also the menu when accessing via R2 when a game runs.
The lighting of the Jaguar version still outshines the (very impressive) Resurrection 2.0 mod. On the Jaguar you will find a much more vibrant ambient lighting that affects your own weapon the enemies. Compare these 2 clips where the player uses the radiotion suit.

32X
https://youtu.be/g6QfYoAof4E?t=2890

Jaguar
https://youtu.be/eZR-IVNJALQ?t=3258

On the other hand, having music ingame was always a plus of the 32X version.
The v2.1 of D32XR was released yesterday (https://www.romhacking.net/hacks/6269/) and, among other things, it fixes the lighting for floors and ceilings. So there's that.

The Jaguar version seems to use a different colormap for the radiation suit, so that's why it looks that way with the radiation suit. But that's not what the original DOS and other versions, including the PS1's, do.
It's something specific to the Jaguar version and having multiple colormaps like that would be a pain since we already have the High Color mode to account for. It would also take some precious ROM space and we already have all the music tracks in there.

The lighting in the Jaguar version isn't perfect either, some rooms don't dim the lighting as they should, like this one:
https://youtu.be/L4j_FLIkl3o?t=2492

Another issue related to the Jaguar version lighting is that pretty much every time you take a hit and the screen goes red-ish, the framerate drops. If it's running at 12fps, it drops to 10fps when it has to change the screen colors. That's not good for input response and D32XR doesn't have such an issue.

BTW, the Jaguar version has some performance issues that are really off-putting IMHO.
Like when you want to begin to fire your shotgun and it usually halves the framerate until the first shooting frame is loaded (notice how the ammo count is updated in the HUD well before the animation is actually displayed):
https://youtu.be/qpla42Pe4nE?t=5851
https://youtu.be/Ydz5XxFYF7k?t=1202

That kind of abrupt dip certainly doesn't occur in D32XR.

So, in fact, it runs with better performance in 320px wide with music, stereo sfx with proper panning and envelope control, and sound propagation (this really affects the gameplay since it's used to trigger the enemies' AI) similar to the PC than the Jaguar version does at 160px with no music and mono sfx with no envelope control, and with cutdown sound propagation.

D32XR v2.1 also fixes this graphical glitch that the 32X game had inherited from the Jaguar Doom code base:
https://youtu.be/4_1quo7YgwE?t=9510
https://youtu.be/49F4i0n4Fm0?t=1255
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MiSTerEggman
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Re: Sega 32X Core

Unread post by MiSTerEggman »

Megahurtz wrote: Sat May 21, 2022 11:40 am
Rolygon wrote: Sat May 21, 2022 3:54 am
MiSTerEggman wrote: Wed May 04, 2022 3:38 pm Im using Antonio villena's s-video with analog io board to a 14" CRT

the colors are washed out / inaccurate / lots of flickering on this core... anyone else?

Tried switching the physical switch from auto to ovr on io, still doesnt fix it.

Looks fine over HDMI to my flat screen.
Yup, I too am having the same issue with that adapter.
Me three. There is a GitHub issue open for it:
https://github.com/MiSTer-devel/S32X_MiSTer/issues/15

MikeS chimed in there and said it is due to the transcoder chip's inability to match the core to NTSC frequency. There are a few older arcade cores that exhibit the same issue for me, but console cores have been perfect up until now. I'm hoping either the 32X core gets updated and fixes this or MikeS's s-video work gets incorporated into the mainline cores.
Thanks for the info! good to know.
marcopolo316
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Re: Sega 32X Core

Unread post by marcopolo316 »

I’ve been trying to use the system link cable for multiplayer Doom Resurrection 2.1 but can’t get it to work using a real 32x and a Mister. I can confirm my setup works for Zero Tolerance in the Genesis core so I can skip over the troubleshooting I’ve done
marcopolo316
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Re: Sega 32X Core

Unread post by marcopolo316 »

marcopolo316 wrote: Sat Jun 18, 2022 6:25 am I’ve been trying to use the system link cable for multiplayer Doom Resurrection 2.1 but can’t get it to work using a real 32x and a Mister. I can confirm my setup works for Zero Tolerance in the Genesis core so I can skip over the troubleshooting I’ve done
Sorry just saw it’s listed in issues on GitHub
Barone
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Re: Sega 32X Core

Unread post by Barone »

marcopolo316 wrote: Sat Jun 18, 2022 6:25 am I’ve been trying to use the system link cable for multiplayer Doom Resurrection 2.1 but can’t get it to work using a real 32x and a Mister. I can confirm my setup works for Zero Tolerance in the Genesis core so I can skip over the troubleshooting I’ve done
I think it would be nice if you added it as a comment in the existing issue on github.
Thanks for trying it and reporting back.
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