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RandyT:
Sorry, that guy's demo has absolutely awful jitter compared to a GC2 on a good monitor.   He has stabilized the cursor, but at what expense?  Does the system still have enough resources left over to do anything with it?

Accuracy with light guns has as much to do with the system as it does with the gun itself.  Probably more, as a traditional lightgun is literally nothing more than optics, a phototransistor, and some switches.  It appears that if you get lucky, the sega guns have decent optics and a fast light sensor which are actually aligned with the sight.  Not a given, based on at least one review I found on the web.  Believe it or not, I have 3 Master Systems and 3 Phazers, but out of my 49 cartridges, no Shooting Gallery.  I did find "Marksman Shooting & Trap Shooting" and I'll go through the pile again with a list of the supporting games.  Pretty sure there's one or two of the others in there.  You guys have instilled some FOMO in me and my curiosity is piqued.  If I can find the time, I'll give it a go.

However, I will say this: if the screen doesn't show real, pinpoint feedback for every shot fired and unless you are privy to the actual code of a game, you can't know the true accuracy of the gun.  The "hitboxes" for the targets could be huge and you wouldn't know if your aim was off a country mile and that target you think you are nailing dead center was just you getting close enough to it to trigger a hit, given the accuracy of the gun.  And if you are looking for proof, I just watched most of a play-through of "Shooting Gallery" and I'm pretty sure I found it.




At marker 21:06 watch the ball descend into the tube.  Yet, the player fires and somehow scores a hit on the ball while inside the tube and not visible.  The only way this is possible is if it has a large hitbox which was still exposed.

Say what you want about Time Crisis, but if I wing an enemy in the shoulder at long distance, or shoot slightly to the left of a clay pigeon in the mini-game, the game shows it.  If you are interested, I can also show you a short video I took of the GC2 calibration screen,  The cursor is a little jittery, but only by a few pixels overall and the center is solid.

To Steve's comment regarding the Zapper, yes, the Sega gun is a much better system in that it is a true light gun, while the Zapper really isn't.  Sega actually has a special line on the controller port specifically to trigger a counter (or most likely an IRQ) on one of the chips so that the system can know the moment the raster comes into view.  To my knowledge, the Amiga simply used the fire button on port 2 to sense this and I am unclear as to whether the Amiga had the ability to trigger an IRQ from a change in that internal register, or whether it's something which had to be monitored by software in the game loop.  If the latter, it could explain why I wasn't particularly impressed with it on that system.
PL1:

--- Quote from: RandyT on May 11, 2022, 12:21:23 am ---The "hitboxes" for the targets could be huge and you wouldn't know if your aim was off a country mile

--- End quote ---
There are some MAME LUA scripts mentioned here that show hitboxes for Warriors of Fate and Street Fighter II.

Someone who knows what they're doing with LUA scripts should be able to adapt one of those scripts for games like Shooting Gallery and draw the hitboxes on the screen similar to the safe zone and danger zone boxes in Jon's DK Coach script.
- A script like this will show how big the hitbox is, but won't quantify the accuracy of the gun.
- For that, you'd probably need to write a test program for the console that allows you to control the fixed-position, size, etc. of the hitbox and count hits/misses and make a multi-axis adjustable-angle rig to hold the gun precisely while gathering large amounts of data using the original console and gun.   :banghead:   :blowup:




--- Quote from: RandyT on May 11, 2022, 12:21:23 am ---At marker 21:06 watch the ball descend into the tube.  Yet, the player fires and somehow scores a hit on the ball while inside the tube and not visible.  The only way this is possible is if it has a large hitbox which was still exposed.

--- End quote ---
There's a really good example at 23:58 dropping into the left funnel.


Scott
EDIT: It was a miss.   :embarassed:
RandyT:

--- Quote from: PL1 on May 11, 2022, 03:14:31 am ---There's a really good example at 23:58 dropping into the left funnel.

--- End quote ---

It looks like that one is showing a miss.  But it is interesting.  It's as though the entire screen is made up of tiles and the "fudge factor" is based on the tile size.
Xiaou2:
The screen flashes slightly before the ball drops into the tube.
(it helps to watch it at the slowest playback speed)

 It appears that the movement and animation, is slightly lagging.   Meaning.. that the game
realizes it made the hit... but it takes a moment before it can stop the object, and apply the
explosion animations.

 Also.. this particular level might be somewhat special:

 1)  The tubes are represented in 3d.. showing part of an opened end.. which can be different
based on which way the pipe is facing.

 2)  Difficulty Adjustment.  Due to the narrow window of timing.. this particular level might have
been adjusted to allow for a slightly greater window.

 Hard to tell.  All I can say, is that again.. it appears he shot before the ball entered the tube,
as you see the flash happen before that point.   And that if this is the only example you could
find... then Id say that the game is pretty darn accurate to me.

 My advice is to play it for real.. and see for yourself.   The game is awesome fun, and hard as
cocoNuts.  Its one of The best reasons to own an SMS, hands down.

 Maybe PBJ could send you a copy of this, and Missile Defense 3D


 **  Future Product request:

 A lot of people would Love to experience various games 3D modes.  Most especially, Continental Circus 3D.
(as well as all 3d sms games, a few NES, and a few of the other 3d arcade games)

 It would be great to have an Interface to trigger some LCD glasses.

 The 3D shutter glasses have become fairly cheap.  They either work with an IR emitter, or an RF emitter,
depending on the device.

 The main issue with PC based interfaces... is that they are tied to specific graphics drivers (Nvidia)...
and Nvidia stopped supporting updates for them (the last driver, afaik, doesnt even work in w10)

 If a small USB driven Emitter could be sold.. and the software allowed emulators to trigger it
properly in timing...  it would make a LOT of people happy.


 You can get an idea of how cool Continental Circus 3D looks.. if you fire up your SMS + Glasses + any 3d game..
then look at your PC monitor with the glasses on.   The glasses wont be sync'd to the PC... so it will only
be 3d in part of the screen... and in a looping manor.   But its worth it, just to see it.  Makes a "Meh" racer,
turn into an Awesome game experience... as parts and pieces keep flying out of the screen.

 Eventually, emulators might make use of VR goggles... but that will still have limitations... such as
no accurate lightgun abilities for Missile Defense 3D.  That, and there are many other factors that
make it better for just using shutter glasses. (such as large screen projector setups = greater 3d depth effect)

 If it cant work with 3d movie playback... so be it.  So long as it works with Emulators.


 Edit:  It would probably be better to use an RF emitter... as an IR emitter would interfere with most
common IR gun solutions ?
Xiaou2:
Partial List of Stereoscopic Games:


Arcade:

Wyvern F0
SubRoc-3D
Battle Bird
3-D Thunder Ceptor II

Virtuality:
Dactyl Nightmare
Grid Busters
Hero
Legend Quest
Battlesphere
Exorex
Total Destruction
VTOL
Flying Aces
Buggy Ball
Dactyl Nightmare 2 - Race For The Eggs
Zone Hunter
Pac-Man VR.
Quickshot Carnival
Zero Hour


Vectrex:
3D Mine Storm
3D Narrow Escape
3D Crazy Coaster
3D Pole Position
3D Sector-X
3D Lord of the Robots


Virtual Boy
22 Officially Sold Games


Sega Master System:

Maze Hunter 3-D
Missile Defense 3-D
Zaxxon 3-D
Blade Eagle 3-D
Space Harrier 3-D
Poseidon Wars 3-D
OutRun 3-D


NES
3-D WorldRunner
JJ
Rad Racer
Falsion
Attack Animal Gakuen
Famicom Grand Prix II: 3D Hot Rally
Cosmic Epsilon


DOS
Magic Carpet
Descent
Duke Nukem 3D


PS3, Xbox360 (Various)

Nintendo 3DS

-----

 Shutterglasses can Also be used to display a 2 player game, on One Monitor...
where as one player is only seeing the Left display image,  and the other player, is only seeing the Right display image.

 It could also be good for 3D displaying of Cabinets, Pinball tables, 3d mame bezel art, and more.
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