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Saturn Picture Vibrates on CRT

Posted: Tue Jan 14, 2025 11:48 am
by misterrocks

I tried Cotton on Saturn and I noticed the intro screens seem to vibrate although the actual gameplay screens are stable. I'm using direct video into a consumer Sony CRT. Has anyone else run into this?


Re: Saturn Picture Vibrates on CRT

Posted: Tue Jan 14, 2025 12:26 pm
by Beeble

Can you check how Virtua Fighter 2 for example looks?

The description seems like it might be just a higher resolution interlaced picture, the Saturn likes to change resolutions for menu and/or intro stuff.
Those can look a bit like vibrating.


Re: Saturn Picture Vibrates on CRT

Posted: Tue Jan 14, 2025 1:46 pm
by yomismomyself

I have 2 crts (20", 14") I notice a similar vibrating screen behavior on Detana Twimbee intro on the 20" but not on the 14" and blamed my tv. Maybe the interlaced picture is less noticeable on the 14" or maybe the 20" is faulty.


Re: Saturn Picture Vibrates on CRT

Posted: Tue Jan 14, 2025 3:43 pm
by Jeruro

Cotton menus are interlaced and gameplay is progressive so your vibration should be normal. Some TV's handle interlaced content better than others.


Re: Saturn Picture Vibrates on CRT

Posted: Wed Jan 15, 2025 5:16 pm
by Primeira_Fase
misterrocks wrote: Tue Jan 14, 2025 11:48 am

I tried Cotton on Saturn and I noticed the intro screens seem to vibrate although the actual gameplay screens are stable. I'm using direct video into a consumer Sony CRT. Has anyone else run into this?

Open a issue report on Gitthub page of the core.


Re: Saturn Picture Vibrates on CRT

Posted: Fri Jan 17, 2025 7:38 am
by Beeble
Primeira_Fase wrote: Wed Jan 15, 2025 5:16 pm

Open a issue report on Gitthub page of the core.

For Saturn Software making heavy use of the interlaced mode?