English Amiga Board Amiga Lore


Go Back   English Amiga Board > Support > support.Apps

 
 
Thread Tools
Old 17 August 2009, 00:46   #1
Bloodwych
Moderator

Bloodwych's Avatar
 
Join Date: Jun 2001
Location: I'm behind you!
Posts: 3,763
iGame screenshots on low res/colour displays

I was looking into integrating OddbOd's converted screenshot pack for iGame into the ClassicWB as an install option. Pics found here:

http://eab.abime.net/showthread.php?t=35340

However, I've found that the render/guigfx.library scaling in iGame produces artifacts on native Amiga displays (256 colours and below). Instead of clean colours, you get random dots in some places like it's trying to dither unnecessarily even in 256 colour screenmode.

If you use the noguigfx tool type, the artifacts disappear in all colour modes but of course I will have to batch resize all the images myself for the different display modes used in the ClassicWB packs as the current one's are too big for many native resolutions.

The problem isn't there on True-colour displays. The whole idea of the guigfx lib is that pictures look there best on any display and size.

Has anyone else noticed this?
Bloodwych is offline  
AdSense AdSense  
Old 17 August 2009, 10:29   #2
Cammy
Registered User
Cammy's Avatar
 
Join Date: Aug 2007
Location: Gold Coast, Australia
Age: 32
Posts: 1,134
It's a shame iGame doesn't use MysticView.library on top of guigfx, then it could scale and dither images to any resolution and display.

http://aminet.net/package/dev/misc/MysticLib

This has got to be one of the most underused, but useful libraries out there.
Cammy is offline  
Old 17 August 2009, 11:13   #3
Bloodwych
Moderator

Bloodwych's Avatar
 
Join Date: Jun 2001
Location: I'm behind you!
Posts: 3,763
Interesting.

If this library improved the situation I'm sure the programmer would consider such an addition if suggested to him.

I'm just wondering for now if others have the same issue and it's not a problem unique to my ClassicWB pack.
Bloodwych is offline  
Old 17 August 2009, 21:56   #4
Bloodwych
Moderator

Bloodwych's Avatar
 
Join Date: Jun 2001
Location: I'm behind you!
Posts: 3,763
Well, I'm playing around batch resizing the screenshots to smaller IFF's that work on native PAL and NTSC screens as I just can't live with the guigfx.library artifacts.

This is how they look so far, and performance is quite good even on a standard A1200.

What do people think of the size of the pics - too big, just right? It does cut of a bit of text in the games listings on the left for some titles with long names..

Just trying to get a good balance for the ClassicWB FULL; screen resolution is the standard PAL 640x256.
Attached Thumbnails
Click image for larger version

Name:	iGame1.png
Views:	522
Size:	51.7 KB
ID:	22397   Click image for larger version

Name:	iGame2.png
Views:	368
Size:	34.8 KB
ID:	22398  

Last edited by Bloodwych; 17 August 2009 at 22:01.
Bloodwych is offline  
Old 17 August 2009, 22:32   #5
Retroplay
Lemon Curry ?

Retroplay's Avatar
 
Join Date: Sep 2004
Location: Denmark
Posts: 2,915
Looks good.
Retroplay is offline  
Old 17 August 2009, 23:00   #6
Bloodwych
Moderator

Bloodwych's Avatar
 
Join Date: Jun 2001
Location: I'm behind you!
Posts: 3,763
I could make them smaller to allow more space for the titles text on the left, but you have to be careful resizing 320x256 images or you lose detail and they look like crap.

At the moment, I've only resized to 320x128 and the quality looks ok.

Last edited by Bloodwych; 17 August 2009 at 23:05.
Bloodwych is offline  
Old 17 August 2009, 23:09   #7
Bloodwych
Moderator

Bloodwych's Avatar
 
Join Date: Jun 2001
Location: I'm behind you!
Posts: 3,763
Ok, here are some smaller versions - 240x128.

Better? Worse?
Attached Thumbnails
Click image for larger version

Name:	iGame3.png
Views:	270
Size:	45.0 KB
ID:	22399   Click image for larger version

Name:	iGame4.png
Views:	344
Size:	33.2 KB
ID:	22400  
Bloodwych is offline  
Old 17 August 2009, 23:18   #8
prowler
Global Moderator

prowler's Avatar
 
Join Date: Aug 2008
Location: Sidcup, England
Posts: 10,203
Hi Bloodwych,

The quality of the 240x128 screenshots is still acceptable, but I think the window looks better proportioned with the columns split 50/50 with the 320x128 screenshots and the correct aspect ratio.

Are there that many games with long filenames? It would really be a pity to spoil the look of those windows just for the odd long filename.
prowler is offline  
Old 17 August 2009, 23:27   #9
Bloodwych
Moderator

Bloodwych's Avatar
 
Join Date: Jun 2001
Location: I'm behind you!
Posts: 3,763
Not too many - it's not as if you can't recognize the game anyway.

It's not an issue on the ClassicWB ADV and ADVSP, as they use less wide fonts and the 320x256 IFF pictures fit fine on the square pixel screen (640x512) without resizing.

I'll test performance differences between the two sizes.

I'm also playing with 256 vs 128 colour IFF files. I've looked at both, and there isn't much difference between 256 vs 128 images even on AGA snapshots. You have to look hard to notice the difference. The reason for lower colours is better pen management (rarely are there a full 256 colours free on a Workbench screen) and perhaps better performance?

Decisions, decisions.
Bloodwych is offline  
AdSense AdSense  
 


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
iGame "Game screenshots" sebmacfly support.Other 7 11 March 2014 18:58
Copying iGame screenshots into corresponding folders emuola support.Apps 0 15 September 2010 18:10
Amiga displays Parsec support.Hardware 5 06 February 2009 23:42
Low-res tick-box????? crl support.WinUAE 1 28 August 2003 10:10
Displays BippyM support.WinUAE 3 17 August 2003 14:34

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 07:28.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Page generated in 0.14453 seconds with 12 queries