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Re: Suggestion: Anaglyph Filter for DOSBox

Posted on 2009-08-06, 15:06

I'm in agreement with the other responses.. ie.. The short answer is that it's not possible. There's more than enough explanation in this thread to explain more now.. but it takes some time on your own to digest it if you haven't dwelled a lot on 3D perception before. It's easier for developers to …

Re: Suggestion: Anaglyph Filter for DOSBox

Posted on 2009-08-05, 17:51

From your description, it seems that those SEGA games were in fact specifically developed with shutter glasses in mind. They had to make an effort to generate the correct frames for the left, and then the right eyes.. in sync with the shutters so that the eyes see the appropriate frames. The author …

Re: Suggestion: Anaglyph Filter for DOSBox

Posted on 2009-08-05, 15:49

Ah. I suppose it is possible to get some kind of 3D effect sometimes via analysing the framebuffer and handling it according to some presets for the game. In the past that would have been naive, but with fast processors and multicore, there probably are some interesting things that could be done ( …

Re: Suggestion: Anaglyph Filter for DOSBox

Posted on 2009-08-05, 15:29

It would most likely be possible to do this for Glide games, where 3D is rendered via Glide API calls. The Glide implementation could be written to use the depth information to create depth. The key here is that developers could write some code to handle a standard API, and get a bunch of games …

Re: VSYNC in DosBox (Mac OSX & OpenGL)

Posted on 2009-01-11, 04:37

If you want to see shearing in action, try running VSYNC.COM (found in the VSYNC directory) in this archive: http://www.vogons.org/download.php?id=2439 (That is a link to the vsync patch that I uploaded in 2005.. VSYNC.COM is designed to make any shearing due to lack of synchronization as obvious as …

Re: VSYNC in DosBox (Mac OSX & OpenGL)

Posted on 2009-01-08, 15:29

Anyway, VSync support in DOSBox would be cool, of course. But: forgive me for my ignorance, but isn't it already possible to force VSync on Windows via the graphics card driver? The trouble is that the host vsync isn't synchronized with the emulated vsync frequency. Some games, demos, and other …

Re: VSYNC in DosBox (Mac OSX & OpenGL)

Posted on 2009-01-07, 06:09

I just happened to check VOGONS and see this (I haven't been back in a long while). To my knowledge, the only person who ever released a build with my vsync patch partially applied was ykhwong (and I didn't notice it until at least several months after he had applied it (!)). Unfortunately, those …

Re: Time and Date Issue

Posted on 2008-06-14, 21:08

SDL's timing is pretty unambitious, basically targeting the lowest common denominator rather than allowing variable performance based on queries of the capability. It's bitten me before, since there have been times that I'd be content to make use of the best performance possible of any platform ( …

Re: 0.72: cd Command Bug

Posted on 2008-06-12, 18:34

Yes definitely. Feel free to add all combinations of invalid response to stupid command line entries to the wiki, might give a nice list. Yeah, because that's exactly what I want :disapproving:. Truth is, I'm just a softie who isn't comfortable seeing a polite report met only with hostility (that …

Re: Widescreen support?

Posted on 2008-03-05, 03:02

There are several places in your system where can disable auto-scaling options. Disabling it in your graphics driver is the most obvious.. and in some strange cases, there is an option in the BIOS that causes it. If you continue to have problems, perhaps you can look there. Once all the system …

Re: Game colors in DosBox?

Posted on 2007-11-14, 12:23

Low-tech solution would be to wear red-tinted glasses perhaps.. Alternatively, you could probably do something with a similar effect by adjusting the color components in a graphics driver. Depending on how you installed your driver, you may or not have it.. but it should be possible to get an …

Re: Demoscene productions + DOSBox == Happyness

Posted on 2007-08-09, 02:49

madcrow: If you want to get more accurate VGA emulation on a scanline-by-scanline basis, you can try out a build that uses hal9000's experimental vga patch. (maybe it will eventually go into the official builds in some form, but isn't in yet as far as I'm aware). I like using it to see the " …

Re: Vertical retrace sync patch

Posted on 2007-08-07, 06:47

ykhwong: I tried the 'host' vsync mode in your latest build. It still has one important problem that I'm not sure you've understood. The offset of the vsync is wrong. In other words, the timer is set to the an approximately correct frequency.. but it is not started at the right time. Because of this …

Re: Vertical retrace sync patch

Posted on 2007-08-06, 11:48

rarefluid: It looks like you got hal9000's experimental vga patch confused with the vsync patch. They are separate patches. This may be the reason you're not getting results. ykhwong's builds are the only ones using the vsync patch (to my knowledge), and it's handy because he also applied the …

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