How can I have WinUAE display 320x240 properly?

21 June 2006, 20:45

Every time I set WinUAE to run in full screen mode at 320x240 resolution, the result is a HUGE image, of which I see, roughly, a quarter of. The application isn't telling my monitor to resize itself properly, it seems. I'm running Windows in 1280x1024.

I've tried turning the line mode down to normal, low res, etc., but nothing seems to work.

Correct me if I'm wrong, but wasn't the Amiga 500's native resolution 320x240? I want to be able to play the games now as I played them then, which is why I want to be able to emulate said resolution.

Any ideas as to what's going on?

thomas · 21 June 2006, 21:19

Quote:

wasn't the Amiga 500's native resolution 320x240?

The Amiga 500's native resolution was 640x256 (called hires). 320x256 is called lores and is displayed correctly if you set WinUAE's screen mode to 640x512. WinUAE automatically scales the screen to the native size.

You can display 320x256 natively if you enable lores checkbox in WinUAE, but then hires screens won't display correctly.

None of the Amiga screen modes displays correctly on 320x240 or 640x480 because it's too small for the Amiga's display (240 vs. 256 resp. 480 vs. 512).

You should live with 800x600. Then the Amiga's display has some empty frames around it, but this is exactly how it looked like on a TV or an Amiga monitor.

alexh · 21 June 2006, 22:02

If it's an NTSC Amiga, are the native modes not different?

21 June 2006, 22:50

The problem that I have with 800x600 is that it appears to be aliased, or smoothed, somehow, not quite like the original Amiga displayed its graphics, if you know what I mean. When I scale it down to 640x480 that anti-aliased look goes away, but the picture falls off the screen somewhat.

And yes, my Amiga was NTSC.

Toni Wilen · 21 June 2006, 23:38

Quote:

Originally Posted by thomas

The Amiga 500's native resolution was 640x256 (called hires). 320x256 is called lores and is displayed correctly if you set WinUAE's screen mode to 640x512. WinUAE automatically scales the screen to the native size.

There is no "native" Amiga resolution. 320x256 is displayed if specific display parameters are set to custom registers. Programs can have larger or smaller resolution. I'd call 320x256 "nominal" PAL resolution

andreas · 22 June 2006, 00:07

Yeah, it's like on the C64 in some way: you as the developer can choose *your* resolution (i. e. from a list of built-in resolutions). If you can make sure all the people using your software will play resp. work with their sunglasses on (always make sure, otherwise you might be made liable for recourse of eye cancer

), you can decide to use interlace mode, for instance

fmcpma · 25 June 2006, 04:29

You have, in the display section, to choose the full-screen resolution of 320x240, turn "Full-screen native modes" on, "Force low resolution" on, "Line Mode" to normal, probably turn on both centering settings and, if it is a PAL game that fills the whole screen, "Correct aspect ratio" on.

You might also, in the case of a PAL game, turn off NTSC in the chipset section.

P-J · 02 July 2006, 01:07

Quote:

Originally Posted by alexh

If it's an NTSC Amiga, are the native modes not different?

Yes, it's 240 or 480 instead of 256 or 512.

LocalH · 02 July 2006, 06:40

Actually, non-overscan NTSC Amiga modes are 200 and 400 lines.

fmcpma · 05 July 2006, 02:27

I think he meant that 256 or 512 would be needed to have true PAL emulation.

Damage · 05 July 2006, 10:37

Not to put off what anyone is saying but i found that 720x576 is the best resolution i have seen for a winuae display that is if your video card supports it that is.

My old geforceFX 5200 done a very nice job in this resolution especially with the scanline option enabled but since my upgrade to an ati Raedon videocard i no longer have the ability to use this resolution

alexh · 05 July 2006, 11:56

Most cards that have TV OUT can do this resolution.

DamienD · 05 July 2006, 14:03

Quote:

Originally Posted by Damage

Not to put off what anyone is saying but i found that 720x576 is the best resolution i have seen for a winuae display that is if your video card supports it that is.

My old geforceFX 5200 done a very nice job in this resolution especially with the scanline option enabled but since my upgrade to an ati Raedon videocard i no longer have the ability to use this resolution

I agree with this. 720x576 is cool

If you video card doesn't support this mode (as mine doesn't) then use this:

PowerStrip
http://entechtaiwan.net/util/ps.shtm

21 June 2006, 20:45	#1
vwlssknght Posts: n/a	How can I have WinUAE display 320x240 properly? Every time I set WinUAE to run in full screen mode at 320x240 resolution, the result is a HUGE image, of which I see, roughly, a quarter of. The application isn't telling my monitor to resize itself properly, it seems. I'm running Windows in 1280x1024. I've tried turning the line mode down to normal, low res, etc., but nothing seems to work. Correct me if I'm wrong, but wasn't the Amiga 500's native resolution 320x240? I want to be able to play the games now as I played them then, which is why I want to be able to emulate said resolution. Any ideas as to what's going on?

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21 June 2006, 22:02	#3
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	If it's an NTSC Amiga, are the native modes not different?

21 June 2006, 22:50	#4
vwlssknght Posts: n/a	The problem that I have with 800x600 is that it appears to be aliased, or smoothed, somehow, not quite like the original Amiga displayed its graphics, if you know what I mean. When I scale it down to 640x480 that anti-aliased look goes away, but the picture falls off the screen somewhat. And yes, my Amiga was NTSC.

22 June 2006, 00:07	#6
andreas Zone Friend Join Date: Jun 2001 Location: Germany Age: 50 Posts: 5,857	Yeah, it's like on the C64 in some way: you as the developer can choose your resolution (i. e. from a list of built-in resolutions). If you can make sure all the people using your software will play resp. work with their sunglasses on (always make sure, otherwise you might be made liable for recourse of eye cancer ), you can decide to use interlace mode, for instance

25 June 2006, 04:29	#7
fmcpma Banned Join Date: Aug 2005 Location: Portugal / Porto Age: 59 Posts: 62	You have, in the display section, to choose the full-screen resolution of 320x240, turn "Full-screen native modes" on, "Force low resolution" on, "Line Mode" to normal, probably turn on both centering settings and, if it is a PAL game that fills the whole screen, "Correct aspect ratio" on. You might also, in the case of a PAL game, turn off NTSC in the chipset section.

02 July 2006, 06:40	#9
LocalH Amiga user since 1990 Join Date: Aug 2004 Location: Kingsport, TN / USA Age: 44 Posts: 295	Actually, non-overscan NTSC Amiga modes are 200 and 400 lines.

05 July 2006, 02:27	#10
fmcpma Banned Join Date: Aug 2005 Location: Portugal / Porto Age: 59 Posts: 62	I think he meant that 256 or 512 would be needed to have true PAL emulation.

05 July 2006, 10:37	#11
Damage Registered User Join Date: Jan 2006 Location: Australia Age: 51 Posts: 19	Not to put off what anyone is saying but i found that 720x576 is the best resolution i have seen for a winuae display that is if your video card supports it that is. My old geforceFX 5200 done a very nice job in this resolution especially with the scanline option enabled but since my upgrade to an ati Raedon videocard i no longer have the ability to use this resolution

05 July 2006, 11:56	#12
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	Most cards that have TV OUT can do this resolution.

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