Display problem with scanline mode of WinUAE

Sebiohazard · 03 December 2019, 10:05

Hello everyone !

I compared the scanline mode rendering of my favorite game (Flashback) compared to FS-UAE & I have a question.

With WinUAE I tried in fullscreen mode & in full-window it's really not beautiful. Below I've taken a screenshot of Flashback in the same place, with each emulator, so you'll know it.

With FS-UAE:

With WinUAE:

Why is the scanline mode with WinUAE a problem ?

Toni Wilen · 03 December 2019, 11:54

It probably is using different method. WinUAE has at least 4 different ways to add scanlines:

- display panel (which sucks if not 1:1 display scaling)
- filter panel D3D scanlines
- rgb masks
- shader having scanline affect

DamienD · 03 December 2019, 11:54

How are you setting scalines?

Here's how Flashback looks for me

Don't set via "Display" --> "Scalines"... set via "Filters":

...or use one of the shaders that has nice scanlines added

Anubis · 03 December 2019, 16:43

Title is bit misleading, it is not problem with scanlines, correct title is - Scanlines ARE THE problem.

IMHO you are using filter mode that makes scanline show trashy (as they should be).

Remove filter, change resolution to standard and scale 1:1 and it should show every other line.

Sebiohazard · 03 December 2019, 17:17

Hello thanks for your answers !

I activated the " Scanline opacity " in the Filter menu but the rendering is not clean... there is a white line where there is the arrow look:

Salutations !

PS: important thing for the option " Scanline opacity " to be active I had to install this:

https://www.microsoft.com/en-gb/down...s.aspx?id=8109

Retro-Nerd · 03 December 2019, 17:21

This single line can happen due to scaling or Aspect Ratio correction settings.

DamienD · 03 December 2019, 17:43

...and now that you have filters working, use one of those nice / fancy ones with scanlines etc. found in this thread: Corrected shaders for WinUAE

Sebiohazard · 03 December 2019, 17:54

Thank you very much for your help I will try... I keep you informed !

Foebane · 03 December 2019, 18:41

Quote:

Originally Posted by Sebiohazard

Hello everyone !

I compared the scanline mode rendering of my favorite game (Flashback) compared to FS-UAE & I have a question.

With WinUAE I tried in fullscreen mode & in full-window it's really not beautiful. Below I've taken a screenshot of Flashback in the same place, with each emulator, so you'll know it.

Why is the scanline mode with WinUAE a problem ?

It's not. WinUAE has correct scanlines, it's FS-UAE which has badly wrong scanlines.

Quote:

How are you setting scalines?

Here's how Flashback looks for me

DamienD's config is correct, the scanlines should line up with each line of pixels, not every two lines as FS-UAE does in your example.

Anubis · 03 December 2019, 19:01

Here is workbench with disabled filters and scanlines.

Retro-Nerd · 03 December 2019, 19:05

Maybe Sebiohazard uses an older WinUAE version. I remember this single line issue with Scanlines enabled ages ago.

Anubis · 03 December 2019, 20:17

It is more likely that he has just goofed his settings. Here are filter settings I did for that screenshot. Note that moving sidebar from 0 to 100 will make it look more like tv screen.

Foebane · 03 December 2019, 20:30

Is anyone who is using an LCD monitor to view this thread having flicker issues as the scanline screenshots scroll up and down? I am, it happens with such patterns on my monitor, and I think it's an LCD issue which happens on every make and model.

Anubis · 03 December 2019, 20:32

How are you taking screenshots??

One above I did is on LCD screen.

Real question is if anyone here is not using LCDs.

Retro-Nerd · 03 December 2019, 20:37

Quote:

Originally Posted by Foebane

Is anyone who is using an LCD monitor to view this thread having flicker issues as the scanline screenshots scroll up and down? I am, it happens with such patterns on my monitor, and I think it's an LCD issue which happens on every make and model.

Yes, and i think this is pretty normal. I'm using a 75Hz refresh rate. I guess 144Hz monitors doesn't flicker that much though.

Foebane · 03 December 2019, 21:07

Quote:

Originally Posted by Retro-Nerd

Yes, and i think this is pretty normal. I'm using a 75Hz refresh rate. I guess 144Hz monitors doesn't flicker that much though.

My refresh rate is 50Hz, to always match the native Amiga I nearly always emulate. I've had it that way for a long time, luckily, my brand of monitor (Benq GL2760H) supports it.

DamienD · 03 December 2019, 21:18

Back on topic please guys

roondar · 04 December 2019, 00:02

I think disabling aspect ratio correction might be the 'trick'. Whenever that's on I notice some lines being thicker than others (and that seems to extends to the scanlines as well).

My guess it's probably because there's no nice integer to represent 1080/576 so lines not being of equal size is pretty much a given.

Sebiohazard · 10 December 2019, 12:12

Hello everyone !

I found the solution, for Windows 7 configuration to no longer have trouble viewing with scanline mode is as follows:

- Scale2X
- Extras Settings > Scanline opacity > 1:2

For Windows 10 I do not know why, it is not necessary to switch to Scale2X, just leave on Null filter ...

Greetings !

03 December 2019, 10:05	#1
Sebiohazard Registered User Join Date: Jul 2019 Location: France Posts: 99	Display problem with scanline mode of WinUAE Hello everyone ! I compared the scanline mode rendering of my favorite game (Flashback) compared to FS-UAE & I have a question. With WinUAE I tried in fullscreen mode & in full-window it's really not beautiful. Below I've taken a screenshot of Flashback in the same place, with each emulator, so you'll know it. With FS-UAE: With WinUAE: Why is the scanline mode with WinUAE a problem ?

03 December 2019, 19:05	#11
Retro-Nerd Missile Command Champion Join Date: Aug 2005 Location: Germany Age: 52 Posts: 12,438	Maybe Sebiohazard uses an older WinUAE version. I remember this single line issue with Scanlines enabled ages ago. Last edited by Retro-Nerd; 03 December 2019 at 20:22.

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03 December 2019, 11:54	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	It probably is using different method. WinUAE has at least 4 different ways to add scanlines: - display panel (which sucks if not 1:1 display scaling) - filter panel D3D scanlines - rgb masks - shader having scanline affect

03 December 2019, 11:54	#3
DamienD Banned Join Date: Aug 2005 Location: London / Sydney Age: 47 Posts: 20,420	How are you setting scalines? Here's how Flashback looks for me Don't set via "Display" --> "Scalines"... set via "Filters": ...or use one of the shaders that has nice scanlines added

03 December 2019, 16:43	#4
Anubis Retro Gamer Join Date: Jan 2005 Location: Underworld Age: 51 Posts: 4,058	Title is bit misleading, it is not problem with scanlines, correct title is - Scanlines ARE THE problem. IMHO you are using filter mode that makes scanline show trashy (as they should be). Remove filter, change resolution to standard and scale 1:1 and it should show every other line.

03 December 2019, 17:17	#5
Sebiohazard Registered User Join Date: Jul 2019 Location: France Posts: 99	Hello thanks for your answers ! I activated the " Scanline opacity " in the Filter menu but the rendering is not clean... there is a white line where there is the arrow look: Salutations ! PS: important thing for the option " Scanline opacity " to be active I had to install this: https://www.microsoft.com/en-gb/down...s.aspx?id=8109

03 December 2019, 17:21	#6
Retro-Nerd Missile Command Champion Join Date: Aug 2005 Location: Germany Age: 52 Posts: 12,438	This single line can happen due to scaling or Aspect Ratio correction settings.

03 December 2019, 17:43	#7
DamienD Banned Join Date: Aug 2005 Location: London / Sydney Age: 47 Posts: 20,420	...and now that you have filters working, use one of those nice / fancy ones with scanlines etc. found in this thread: Corrected shaders for WinUAE

03 December 2019, 17:54	#8
Sebiohazard Registered User Join Date: Jul 2019 Location: France Posts: 99	Thank you very much for your help I will try... I keep you informed !

03 December 2019, 19:01	#10
Anubis Retro Gamer Join Date: Jan 2005 Location: Underworld Age: 51 Posts: 4,058	Here is workbench with disabled filters and scanlines.

03 December 2019, 20:17	#12
Anubis Retro Gamer Join Date: Jan 2005 Location: Underworld Age: 51 Posts: 4,058	It is more likely that he has just goofed his settings. Here are filter settings I did for that screenshot. Note that moving sidebar from 0 to 100 will make it look more like tv screen.

03 December 2019, 20:30	#13
Foebane Banned Join Date: Sep 2011 Location: Cardiff, UK Age: 51 Posts: 2,871	Is anyone who is using an LCD monitor to view this thread having flicker issues as the scanline screenshots scroll up and down? I am, it happens with such patterns on my monitor, and I think it's an LCD issue which happens on every make and model.

03 December 2019, 20:32	#14
Anubis Retro Gamer Join Date: Jan 2005 Location: Underworld Age: 51 Posts: 4,058	How are you taking screenshots?? One above I did is on LCD screen. Real question is if anyone here is not using LCDs.

03 December 2019, 21:18	#17
DamienD Banned Join Date: Aug 2005 Location: London / Sydney Age: 47 Posts: 20,420	Back on topic please guys

04 December 2019, 00:02	#18
roondar Registered User Join Date: Jul 2015 Location: The Netherlands Posts: 3,410	I think disabling aspect ratio correction might be the 'trick'. Whenever that's on I notice some lines being thicker than others (and that seems to extends to the scanlines as well). My guess it's probably because there's no nice integer to represent 1080/576 so lines not being of equal size is pretty much a given.

10 December 2019, 12:12	#19
Sebiohazard Registered User Join Date: Jul 2019 Location: France Posts: 99	Hello everyone ! I found the solution, for Windows 7 configuration to no longer have trouble viewing with scanline mode is as follows: - Scale2X - Extras Settings > Scanline opacity > 1:2 For Windows 10 I do not know why, it is not necessary to switch to Scale2X, just leave on Null filter ... Greetings !

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