WinUAE graphic corruption?

Critter · 30 August 2003, 17:21

Amigos,

Ive forgotten the term they use for these images. (IFF) or something, you know they are the ones that flicker on the amiga. Could someone clarify if these images (Penthouse Hot Numbers Deluxe) are supose to appear like the screenshots taken. Im using 'Full ECS' mode. Maybe someone knows of some tweaking to display the images clearly?

normal mode:

Critter · 30 August 2003, 17:22

scanlines mode:

thomas · 30 August 2003, 20:43

I don't know this game, but yes, it is possible that it should look like this. It looks like an interlaced HAM6 image, digitised from a TV (or video) picture.

Fjrb · 30 August 2003, 20:44

Quote:

Originally posted by Critter
Amigos,

Ive forgotten the term they use for these images. (IFF) or something, you know they are the ones that flicker on the amiga. Could someone clarify if these images (Penthouse Hot Numbers Deluxe) are supose to appear like the screenshots taken. Im using 'Full ECS' mode. Maybe someone knows of some tweaking to display the images clearly?

normal mode:

Well, well, nice screenshot, there's a 'problem' i have no trouble diving into.

Ok, the term they used for these images was HAM (not this is not another cheesy joke) HAM - Hold And Modify (and god i'd love to 'hold and modify' that one), was able to put 4096 colours at the same time on screen at the cost of some colour corruption (a bit a lá Spectrum colour clash.)

There's not enough details on your config to know for sure what it is. You may want to try a higher resolution like 640x or 800x because if you're using a lower one you may end up with parts of the image off the screen (scanlines will double the native Amiga screen.)

You can also try to turn on ::hihi:: the filters in WinUAE to see if it helps as well as make sure you reboot (the emulated Amiga) after changing the screen options, i've found myself it sometimes doesn't apply them correctly on the fly.

Critter · 31 August 2003, 04:57

okay ive just tried normal (line mode) with d3d (32bit) and its flickering like hell.. picture looks a bit better though..

when scanlines (line mode) is on, the image doesnt flicker, i wonder if fellow or other amiga emulators handles HAM images with good quality?

thomas · 31 August 2003, 10:25

What do you expect ? This is HAM quality, you won't get it any better. HAM has 4 bits per gun, a palette of 16 colors and any other color needs three pixels to be reached (one per gun). The max. resolution is 320x256 or 320x512 interlaced (flickering).

Only if the game knows and recognises the AGA chipset and has pictures in better quality for AGA it can give you 6 bits per gun, a palette of 64 colors and a resolution of 640x256 or 640x512 interlaced. Still not at all like 24bit graphics.

Steve · 31 August 2003, 21:28

This is an OCS HAM image from a demo called "Forgotten Realms Slideshow". Notice that the image is correct above the line of text. The line moves up and down and the image is always corrupt below that moving line. I tried fidling with the WinUAE options but nothing corrected the glitches. Any ideas?

Steve · 31 August 2003, 23:01

A quick note. I've noticed you can turn off the scrolling text by pressing the F1 key. Once this has been turned off the corruption is gone. If F1 is pressed again this brings back the text and the graphics glitches.

I've also just tested the demo on my A1200 and it works fine with the scrolling text. This looks like an emulator bug to me. Let me know if you want to take a look at the demo and I'll stick it in the zone.

Steve · 01 September 2003, 14:40

For Critter...

Critter · 01 September 2003, 16:24

:hoo the quality is better! not as jaggy as before. thx for the file

andreas · 07 September 2003, 12:00

Quote:

Originally posted by Steve
I've also just tested the demo on my A1200 and it works fine with the scrolling text. This looks like an emulator bug to me.

To me too.

Toni might want to have a look into this a bit more.

Steve · 07 September 2003, 13:09

Well I've uploaded the demo to the zone if Toni wants to take a look.

Toni Wilen · 07 February 2004, 10:38

Will be finally fixed in next release, fixes also other similar display garbage problems, for example Mystic Tunes by Vertical, BierkrugTro by TEK.

Critter · 08 February 2004, 14:13

marvellous!

30 August 2003, 17:21	#1
Critter Registered User Join Date: Aug 2003 Location: Nth^Dimension Posts: 188	WinUAE graphic corruption? Amigos, Ive forgotten the term they use for these images. (IFF) or something, you know they are the ones that flicker on the amiga. Could someone clarify if these images (Penthouse Hot Numbers Deluxe) are supose to appear like the screenshots taken. Im using 'Full ECS' mode. Maybe someone knows of some tweaking to display the images clearly? normal mode: Attached Thumbnails

30 August 2003, 17:22	#2
Critter Registered User Join Date: Aug 2003 Location: Nth^Dimension Posts: 188	scanlines mode: Attached Thumbnails

31 August 2003, 21:28	#7
Steve I Identify as an Ewok Join Date: Jul 2001 Location: North Lincolnshire Age: 45 Posts: 2,356	A similar problem... This is an OCS HAM image from a demo called "Forgotten Realms Slideshow". Notice that the image is correct above the line of text. The line moves up and down and the image is always corrupt below that moving line. I tried fidling with the WinUAE options but nothing corrected the glitches. Any ideas? Attached Thumbnails

07 February 2004, 10:38	#13
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,534	Forgotten Realms slideshow Will be finally fixed in next release, fixes also other similar display garbage problems, for example Mystic Tunes by Vertical, BierkrugTro by TEK.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
TVPaint corruption under WinUAE	ral-clan	support.WinUAE	25	07 August 2017 17:16
A1200: Graphic corruption on Workbench	Amiga1992	support.Hardware	21	30 May 2009 16:12
Graphic WinUAE logo	DH	request.UAE Wishlist	72	15 May 2009 19:20
Fighter Duel Pro Graphic Corruption	formater	support.Games	0	08 June 2007 20:38
Jaguar XJ220 GFX Corruption in winuae	SexyWayne	support.Games	5	02 January 2005 12:43

30 August 2003, 20:43	#3
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 7,008	I don't know this game, but yes, it is possible that it should look like this. It looks like an interlaced HAM6 image, digitised from a TV (or video) picture.

31 August 2003, 04:57	#5
Critter Registered User Join Date: Aug 2003 Location: Nth^Dimension Posts: 188	okay ive just tried normal (line mode) with d3d (32bit) and its flickering like hell.. picture looks a bit better though.. when scanlines (line mode) is on, the image doesnt flicker, i wonder if fellow or other amiga emulators handles HAM images with good quality?

31 August 2003, 10:25	#6
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 7,008	What do you expect ? This is HAM quality, you won't get it any better. HAM has 4 bits per gun, a palette of 16 colors and any other color needs three pixels to be reached (one per gun). The max. resolution is 320x256 or 320x512 interlaced (flickering). Only if the game knows and recognises the AGA chipset and has pictures in better quality for AGA it can give you 6 bits per gun, a palette of 64 colors and a resolution of 640x256 or 640x512 interlaced. Still not at all like 24bit graphics.

31 August 2003, 23:01	#8
Steve I Identify as an Ewok Join Date: Jul 2001 Location: North Lincolnshire Age: 45 Posts: 2,356	A quick note. I've noticed you can turn off the scrolling text by pressing the F1 key. Once this has been turned off the corruption is gone. If F1 is pressed again this brings back the text and the graphics glitches. I've also just tested the demo on my A1200 and it works fine with the scrolling text. This looks like an emulator bug to me. Let me know if you want to take a look at the demo and I'll stick it in the zone.

01 September 2003, 16:24	#10
Critter Registered User Join Date: Aug 2003 Location: Nth^Dimension Posts: 188	:hoo the quality is better! not as jaggy as before. thx for the file

07 September 2003, 13:09	#12
Steve I Identify as an Ewok Join Date: Jul 2001 Location: North Lincolnshire Age: 45 Posts: 2,356	Well I've uploaded the demo to the zone if Toni wants to take a look.

08 February 2004, 14:13	#14
Critter Registered User Join Date: Aug 2003 Location: Nth^Dimension Posts: 188	marvellous!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)