Welcome, Guest. Please login or register.

Author Topic: Patterns or Pics as workbench backdrop?  (Read 1546 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Ral-ClanTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2006
  • Posts: 1979
  • Country: ca
    • Show only replies by Ral-Clan
    • http://www3.sympatico.ca/clarke-santin/
Patterns or Pics as workbench backdrop?
« on: March 01, 2007, 07:29:25 PM »
I've always used tiled patterns for my workbench backdrop, and avoided using large pictures, thinking that I'm saving memory.  But is this really the case?

i.e. if I have an 800x600 workbench, and I take a small 50x50 bitmap and tile it over my Workbench, am I really saving more than with a fully sized 800x600 bitmap as a backdrop?

I guess I thought that a 50x50 bitmap is a smaller file, so maybe, some way, it will take less RAM.  But now that I think about it, if it has to repeat it and generate a full "map" in memory representing the 800x600 screen, maybe it's just taking as much RAM.

PS: I have a graphics card, so I assume it's all coming from Fast RAM, rather than Chip RAM on a machine without a graphics card.  Right?
Music I've made using Amigas and other retro-instruments: http://theovoids.bandcamp.com
 

Offline guru-666

  • Hero Member
  • *****
  • Join Date: Dec 2006
  • Posts: 587
    • Show only replies by guru-666
Re: Patterns or Pics as workbench backdrop?
« Reply #1 on: March 01, 2007, 07:53:47 PM »
in practice you are saving ram, just look at the guage.  Also I think internaly it make an "instance" if the same memory with tiles.  You can save even more ram by just using a color.
 

Offline Linde

  • Sr. Member
  • ****
  • Join Date: Mar 2004
  • Posts: 457
    • Show only replies by Linde
    • http://hata.zor.org/
Re: Patterns or Pics as workbench backdrop?
« Reply #2 on: March 01, 2007, 08:14:09 PM »
With my own A1200 I balanced the background between efficient and aesthetically pleasing by putting a 1 bit background over a nice copper effect. That way it looks good, doesn't strain the CPU and only uses a few k of RAM (med-res PAL, of course).

You can't have copper effects if you use a GFX card I think, but a similar 1 bit image at 800x600 would take less than 60kb of RAM. An 8-bit image at that resolution would take something like 500kb RAM, and a true-colour pic would take a meg and a half.

I don't know how patterns work, but I'm just saying you aren't saving a lot of RAM by using them (especially since you have a GFX card, so I'll assume you have 32Mb+ RAM).
 

Offline Ral-ClanTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2006
  • Posts: 1979
  • Country: ca
    • Show only replies by Ral-Clan
    • http://www3.sympatico.ca/clarke-santin/
Re: Patterns or Pics as workbench backdrop?
« Reply #3 on: March 01, 2007, 08:30:54 PM »
Thanks. I like the look of a full colour picture as a backdrop, but there's no way I'd sacrifice 1.5MB of RAM (or even 500K for an 8-bit backdrop) just for the sake of aesthetics.

Right now I'm using an 8-bit pattern (sort of a shale-like texture).
Music I've made using Amigas and other retro-instruments: http://theovoids.bandcamp.com
 

Offline pan1k

  • Hero Member
  • *****
  • Join Date: Nov 2004
  • Posts: 841
    • Show only replies by pan1k
Re: Patterns or Pics as workbench backdrop?
« Reply #4 on: March 01, 2007, 08:54:47 PM »
Where do you get your patterns from?
A4K: \\\'060, Cyberstorm MKIII Cybervision 64/3D w/ Scandoubler, Buddha Flash XSurf, MP3@64, A4K: \\\'040, Toaster, Y/C, A1200: Apollo \\\'040, A1200 GVP \'030, A1200: Stock, A2000: 68K, Trump SCSI, Supra 8Mb, and Toaster 4K, A2500: \\\'030, GVP SCSI, Supra 8MB x2, Video Toaster, CD32, Minimig, Efika and Hopefully an A4000T soon!
 

Offline Ral-ClanTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2006
  • Posts: 1979
  • Country: ca
    • Show only replies by Ral-Clan
    • http://www3.sympatico.ca/clarke-santin/
Re: Patterns or Pics as workbench backdrop?
« Reply #5 on: March 01, 2007, 09:06:35 PM »
I think the patterns I am using were originally from a MagicWB install.
Music I've made using Amigas and other retro-instruments: http://theovoids.bandcamp.com