GUN2CRT, the new universal CRT lightgun adapter

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JayBee:

--- Quote from: Howard_Casto on March 11, 2021, 02:32:55 am ---
--- Quote from: JayBee on March 09, 2021, 05:35:57 am ---
--- Quote from: CanadianRyGuy on March 08, 2021, 11:24:02 pm ---This project looks awesome and already has me looking around my city for a nice crt tv lol. Just curious what this device might cost once all said and done?

--- End quote ---
This hasn't been decided yet, as it's still in early prototyping phase :D

--- Quote from: Howard_Casto on March 09, 2021, 01:17:30 am ---Ok how about this scenario. I use gbs control to pump native rgbs into a crt with component in. I believe the max output is 480p. There's no upscaling or anything like that involved, the only thing it does is convert to component so if it's a 240p signal that's what the tv is going to get. Would that work or is the conversion enough to throw off the timing?

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The latency added by the GBS-C, while being minimal, would most definitely throw the timing off and make the gun unusable.
To explain shortly, the gun needs a timing precision or at least 0.1 microsecond to work well, which pretty much no scaler do.
But there is also another issue, if you double the resolution of the video signal while the gun is still sync with 15kHz, it just won't understand what's happening :lol

If you want a higher res signal, the best is to simply have everything working at that res.
For instance in the last demo videos, I'm using the system on a pc crt at 1025x768@75Hz.

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I don't think you are hearing me on this one. I'm not using it as an upscaler.... it's outputting native res which the tv accepts happily as it's a 1999 crt SD tv, one of the first to have component input. the only thing it's doing is modifying the color space and I think the chip does that at the hardware level, I'm not sure. Timing is the only issue here, not resolution.

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I heard you, I'm just saying the GBS-C has a (digital?) frame buffer, and a buffer means latency, minimal or not, native resolution output or not, it doesn't matter.
So no, it won't work.

Zebidee:

--- Quote from: JayBee on March 11, 2021, 02:43:24 am ---I heard you, I'm just saying the GBS-C has a (digital?) frame buffer, and a buffer means latency, minimal or not, native resolution output or not, it doesn't matter.
So no, it won't work.

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When we have a chance we definitely must see if GreenAntz is fast enough to work with GUN4CRT for component CRT SDTV.

JayBee:

--- Quote from: Zebidee on March 11, 2021, 04:09:48 am ---
--- Quote from: JayBee on March 11, 2021, 02:43:24 am ---I heard you, I'm just saying the GBS-C has a (digital?) frame buffer, and a buffer means latency, minimal or not, native resolution output or not, it doesn't matter.
So no, it won't work.

--- End quote ---

When we have a chance we definitely must see if GreenAntz is fast enough to work with GUN4CRT for component CRT SDTV.

--- End quote ---
Indeed, we have to try it :D

Marsupial:
JayBee, what constitutes as a compatible gcon gun?

I own a nyko cobra I assume to be ps1 compatible (got it used at a swap meet...)

JayBee:

--- Quote from: Marsupial on April 29, 2021, 10:36:04 pm ---JayBee, what constitutes as a compatible gcon gun?

I own a nyko cobra I assume to be ps1 compatible (got it used at a swap meet...)

--- End quote ---
In my newer prototype, this adapter support every single PS1 compatible gun. So yeah it should work fine :lol

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