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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-18, 12:39

in DOSBox Games/Apps

in DOSBox Games/Apps

As already mentioned above, some artists understood that their game would be displayed on a 4:3 monitor, and adjusted their art accordingly. Others did not, and that's why their games look off in that aspect ratio. There were also some multi-platform games which had to make compromises due to the …

Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-18, 12:37

in DOSBox Games/Apps

in DOSBox Games/Apps

Nilex wrote on 2023-04-15, 09:39: See you again OP, if/when you catch up to audio side of things... 😀 Thanks - I have already gone down that rabbit hole 😉

Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-15, 09:15

in DOSBox Games/Apps

in DOSBox Games/Apps

Those are all good points, and all likely to be valid to varying degrees, depending on when/where/how the specific game was created. I saw some old footage of artists drawing using Deluxe Paint back in the 80s/90s on the Amiga, and the circles were coming out as ellipses on their CRT monitors. As …

Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-14, 06:00

in DOSBox Games/Apps

in DOSBox Games/Apps

Well, even back in the day some (or many) CRT monitors had buttons with which you could stretch and squeeze the image as you like, thus correcting such discrepancies, so period accurate would not mean to force it to 4:3 no matter what. True, 320x200 was meant to fill a 4:3 screen, but I agree with …

Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-12, 06:31

in DOSBox Games/Apps

in DOSBox Games/Apps

BTW, Balance of Power is not "EGA-only". Like many Windows programs, it displays according to the video driver that Windows (1.x or 2.x in this case) has been configured to use. Thanks, I had forgotten that Balance of Power is running on top of Windows 1.x, so I will check what driver is being used …

Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-12, 05:22

in DOSBox Games/Apps

in DOSBox Games/Apps

Thanks, I totally forgot that I had previously raised SimCity as an example. And thanks @jmarsh, I had been thinking solely of the machine type setting, but did not realize that Balance of Power, being an EGA-only game, was just forcing a switch to that mode, regardless if I selected vgaonly or svga …

Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-11, 23:38

in DOSBox Games/Apps

in DOSBox Games/Apps

Thanks for those comments, which are a big help. It seems that the discrepancy caused by DOS games using Amiga artists means that to be period accurate to a CRT, it should be enforced 4:3 aspect ratio every time, despite things looking a bit off. It is interesting that on some Macintosh and Amiga …

How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-11, 08:46

in DOSBox Games/Apps

in DOSBox Games/Apps

I have been struggling with how to get the "correct" aspect ratio in some games in DOSBox, which do not seem to play by the rules. That is, using aspect=true to set the ratio at 4:3 results in a squashed appearance where circles look like ovals and squares look like rectangles. Likewise, cross-hair …

Re: DOSBox-X branch

Posted on 2022-10-08, 16:15

in DOSBox Patches

in DOSBox Patches

I would recommend trying the regular Sound Blaster 16 (sb16). Windows 98 should already have the files to enable plug-and-play installation. If that, in conjunction with increasing the block size and prebuffer, makes no difference, then the issue you are experiencing is more likely to be related to …

Re: DOSBox-X branch

Posted on 2022-10-04, 15:37

in DOSBox Patches

in DOSBox Patches

So there is no way to fix it then? I had some problems with audio stuttering that was resolved by increasing the blocksize and prebuffer values, but that was in the DOS rather than Win98 environment. I get good results from the following values (without any noticeable lag): blocksize = 2048 …

Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-10, 22:37

in DOSBox Patches

in DOSBox Patches

DOSBox-X actually passes Intel's MCPDIAG.EXE tests... And it supports different FPU generations. https://github.com/joncampbell123/dosbox-x/pull/3415 Regarding 3dfx, DOSBox-X implements enough of PnP, such that the 3dfx voodoo is properly detected in Win9x and works. Either in OpenGL mode, or with …

Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-10, 12:36

in DOSBox Patches

in DOSBox Patches

I really wouldn't trust any sort of test with DOSBox (nor DOSBox-X) under win95/98, there are major issues with the FPU emulation which can often break 3D games. Well, I can only judge it based on my own subjective experience. I just got Mask of Eternity, Lands of Lore 2 and F/A-18 Hornet all …

Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-10, 10:19

in DOSBox Patches

in DOSBox Patches

Looks like there was more stuff that needed to be done to facilitate non-Windows builds. The newest 20220906 version of the patch now modifies "configure.ac" with some stuff I cobbled together. No idea if it works but please try it out! Those changes appear to have done the trick, thanks. It …

Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-06, 13:00

in DOSBox Patches

in DOSBox Patches

In my version there are two config variables, both under [pci] . voodoo= is a string that can be set to 12mb , 4mb or disabled . Default is set to 12mb . voodoo_perf= is a numeric value that can toggles performance optimizations for Vodooo 3dfx emulation ( 0 = none, 1 = use multi-threading, 2 = …

Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-05, 13:40

in DOSBox Patches

in DOSBox Patches

I have successfully applied the patch to SVN and the binary runs normally. However, I am having trouble getting a Voodoo card to detect. What parameters should I be using to enable the card in the configuration file? I was previously using these settings with kekko's 3dfx patch: [pci] # voodoo: …

Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-08-30, 07:27

in DOSBox Patches

in DOSBox Patches

Is there any chance of this being converted to an SVN-compatible patch in the future, or are there too many Libretro-specific dependencies? I did create a diff and check out the code changes, but could not make much sense of it.

Re: some more shaders for SVN r4319 and later

Posted on 2022-03-01, 11:41

in DOSBox Development

in DOSBox Development

I have spent some time applying some further tweaks of my own to "crt-lottes-tweaked" which, in my opinion, duplicate the look and feel of "crt-lottes-fast.subtle+gain". I did this because, as much as I like the latter shader, I was never satisfied with the lack of easy configurability in relation …

Re: some more shaders for SVN r4319 and later

Posted on 2022-01-31, 13:05

in DOSBox Development

in DOSBox Development

Does anyone know how to increase the saturation in the "CRT-lottes" and "CRT-lottes.tweaked" shaders? My favorite for 90s VGA / Windows era is still "crt-lottes-fast.subtle+gain" but for CGA/EGA I think the original lottes shaders have an edge. The only problem is that the colors do appear more …

Re: Silent Thunder (A-10 Tank Killer II)

Posted on 2021-12-21, 16:20

in DOSBox Games/Apps

in DOSBox Games/Apps

By skipping the Sierra installer in Windows 3.11 I was preventing Win G and Win 32 from installing. I’ve got those installed and now the icon for the game in Windows 3.11 looks normal, but now I am getting “DOS error 21” when double clicking it. EDIT .. all resolved now I remembered that to get …

Re: Silent Thunder (A-10 Tank Killer II)

Posted on 2021-12-21, 15:26

in DOSBox Games/Apps

in DOSBox Games/Apps

Are you really sure that A-10 Tank Killer II runs on Windows 3.x? I thought it was one early DirectX game... I don’t have the box anymore, but my manual is dated 1996 and contains instructions for installing in both Windows 95 and 3.1. Unfortunately, there are no trouble shooting tips, and the …

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