S-Video to VGA converter equals Jailbars

[FreedomGundam]

Sounds like you’re overcomplicating things.

Why not just get your hands on a good consumer CRT?
I managed to get one from local classified about 6 years back for $20CAD ($15USD), and it was a 20" JVC flat CRT that had composite, S-Video and even Component inputs.

[Darksakul]

@tripletopper

I understand that light gun games work not by telling where it senses light but when to the nearest pixel and then computes where it is based on the timing it senses versus the timing in the actual computer’s internal “time clock”. It makes a computation and computes a where based on a when.

Not really. Most of the 80s Light Guns has no way of knowing what you are actually pointing at. Theses guns has no camera, just a sensor to detect light. Later 90s Light guns uses the video timing (not the CPU clock) to detect a hit. (Hence why the Guncon and Guncon 2 as Composite has Video connectors). The old light guns look for When the trigger is pulled and not where it was pointed. The delay of modern screens screw up the timing.

Here an article

How does the light gun for a video game work?

Here a Quote from that article that explains how it works

The computer normally uses one of two different techniques to figure out whether or not the gun is pointed at the target when the user pulls the trigger:

• The computer blanks the screen and then paints just the target object white. If the photodiode senses darkness after one vertical retrace signal and then light after the next, the computer assumes that the gun is pointed at the target and scores a hit.

• The computer blanks the screen and then paints the entire screen white. It takes time for the electron beam to trace the entire screen while painting it white. By comparing the signal coming from the photodiode with the horizontal and vertical retrace signals, the computer can detect where the electron beam is on the screen when the photodiode first senses its light. The computer counts the number of microseconds that pass between the time the horizontal and vertical retrace signals start and the time the photodiode first senses light. The number of microseconds tells the computer exactly where on the screen the gun is pointing. If the calculated position and the position of the target match, the computer scores a hit.

Here a video that explains how Light Guns and Light Pens work in the 80s.

How light pens and light guns work NES Zapper

[tripletopper]

My main point was that a microsecond level delay is EASILY good for fighters, music, and pure reflex random games.

I was not going to attempt light gun games on a VGA CRT.

I got a separate Sony Wega CRT for light gun games and Sega Scope 3D games.

The video showed an HDMI to VGA adapter having a .20 ms or less ping time at the top of the screen. In other words, good for fighters.

As for the light guns, the Genesis, SNES, Saturn and Dreamcast light guns all have calibrating. The calibrating is used to compensate for VCRs and other issues. Those don’t have a composite video link. Those use the timing method.

Boy people love to nitpick about minor points but miss the main point, that a microsecond level video converter is good for fighters. But not good enough for light gun games.

[Darksakul]

@tripletopper

Boy people love to nitpick about minor points but miss the main point, that

Looks who talking.

Only person making everything more complex is you.

[tripletopper]

I found my S Video to VGA lost the chroma on both composite and SVideo. I might not need it. I got a retro twitch area with RF/Composite/SVideo. I have a modern room with HDMI and has an HDMI to CRT VGA converter your video shows clocked at a fifth of a millisecond (very good for fighters).

People said YCbCr<-> CRT VGA is just as fast as HDMI<->CRT VGA.

Component may benefit from a VGA conversion with higher definition than my Sony Wega.

Otherwise, it’s like fighting for millimeters in a Marathon (40 km foot race. BTW any marathons determined by a literal photo finish? The closest I’ve seen is 2 seconds between first and second.)