Almost all vertical scrollings: Strange Effects...

[Leo42]

Hi,


With all versions of WinUAE, the vertical scrollings seems to be fluid BUT are rendered in a strange way...

Hope someone will see what I mean... I'll try to make a video of that problem when I find time...

[andreas]

Did you check the VSync box and try with 50 Hz or 100 Hz?
(as well as 60 Hz for NTSC games)

NOTE: Vsync only works in full-screen mode by now. Windowed mode vsync implementation is on TODO list.

[Leo42]

Ok... So here is a small AVI capture that, I hope, will explain the thing...

http://nogfx.free.fr/uae/pinball.zip (2.7Mb - Codec: Cinepak Radius )

=> Please watch it in fullscreen if you can as it is most visible...

=> it looks like some kind of "water effect" is applied with vertical scrollings... Horizontal scrollings don't have any problems.

(settings used: 100 Hz with Vsync enabled in fullscreen)

[Belgarath]

yeh i also noticed the same thing ages ago, in fact i think its been like that in winuae for a long time, using opengl mode gets rid of it altho the vertical scrolling still looks a bit weird

[Leo42]

That's really too bad as Horizontal scrolling are perfect...

Unfortunately, UAE still won't replace my real OLD (REALLY OLD !) A500 ;((

use a better resolution @ 50hz...

720x576@50 will make u very happy
if this mode ain't available by default then use something like Powerstrip to create it.

winuae has well and truly replaced my 500 (especially lately)

[Toni Wilen]

Untick "Correct aspect ratio"

[Leo42]

Originally posted by Toni Wilen
Untick "Correct aspect ratio"

Cool, it works )

=> I played with almost everything except that

Now just correct this Gods bug and eveyrthing will be perfect

[Leo42]

Originally posted by VermillioN
use a better resolution @ 50hz...

720x576@50 will make u very happy
if this mode ain't available by default then use something like Powerstrip to create it.

winuae has well and truly replaced my 500 (especially lately)

My SVGA monitor does not support 50hz !!

Originally posted by Leo42
My SVGA monitor does not support 50hz !!

doesn't matter - it seems irrelevant now hehe
100hz looks sweet for me but it just don't scroll as fluidly as 50hz.
Too bad your monitor doesn't support it as it sounds like you are as fussy as me

[Shatterhand]

Originally posted by VermillioN
winuae has well and truly replaced my 500 (especially lately)

Good thing Akira didn't read this

[andreas]

Originally posted by VermillioN
100hz looks sweet for me but it just don't scroll as fluidly as 50hz.

Known problem, and maybe it will never get fixed (because it's very hard).
Demos with FAST scrolling BIG letters (right-to-left) usually have this kind of ghosting effect in 100Hz mode. That means, you see one letter overlayed by the same letter, but the second letter is shifted one pixel right or left. This is gonna become a nice sort of eye-killer real soon, especially if text scrolls decently fast...

I can "fix" this by switching to 60 Hz mode (which is actually meant for the NTSC stuff) and get absolutely PERFECT scrolling, BUT music is "pitched".

But every time when I have crap music with a demo anyway, I always turn sound off and use 60 Hz mode. Perfect.

Originally posted by Shatterhand
Good thing Akira didn't read this

I was thinking exactly the same thing after I posted...

Originally posted by andreas
But every time when I have crap music with a demo anyway, I always turn sound off and use 60 Hz mode. Perfect.

I get absoultely perfect scrolling with 50hz!
hmm do u have probs using 50hz andreas or doesn't your monitor support it or something?
I'll be remembering the 60hz trick though incase I do have any probs

[Leo42]

Originally posted by andreas
Known problem, and maybe it will never get fixed (because it's very hard).
Demos with FAST scrolling BIG letters (right-to-left) usually have this kind of ghosting effect in 100Hz mode. That means, you see one letter overlayed by the same letter, but the second letter is shifted one pixel right or left. This is gonna become a nice sort of eye-killer real soon, especially if text scrolls decently fast...

Yep, I just noticed this "ghosting effect" while trying SuperFrog...
This is too bad ,((

I can create a 50hz Screenmode but then horizontal refresh gets out of range (my monitor only supports 27khz -> ... khz in horizontal refresh and the 50hz screenmode is using something like 23Khz...)

Arrggg.... I'm afraid UAE won't replace my real A500... unless I buy an expensive multy-synch monitor...

Originally posted by Leo42
I can create a 50hz Screenmode but then horizontal refresh gets out of range (my monitor only supports 27khz -> ... khz in horizontal refresh and the 50hz screenmode is using something like 23Khz...)

Yes but what resolution are you trying to create?
My monitor only supports 30-96KHz but I can display 720x576@50 no problem (which scans at 32.3Khz btw)