Welcome, Guest. Please login or register.

Author Topic: cybervison 64/3D scandoubler in A3K  (Read 2707 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline midway

  • Sr. Member
  • ****
  • Join Date: Jan 2011
  • Posts: 341
    • Show only replies by midway
Re: cybervison 64/3D scandoubler in A3K
« Reply #14 from previous page: February 14, 2017, 05:29:30 AM »
Anything above 12 bit (4096 colors) looks bad as far as i remember.
 

Offline Oldsmobile_Mike

Re: cybervison 64/3D scandoubler in A3K
« Reply #15 on: February 14, 2017, 05:50:55 AM »
Quote from: midway;822100
Anything above 12 bit (4096 colors) looks bad as far as i remember.

Anything above 12 bit is going to be HAM or HAM8 (18-bit 262,144 color AGA mode), so that's going to "look bad", in general.  Just because it's HAM.  Or do you mean "worse than normal HAM mode images"? :lol:

I don't own this card so I don't have a dog in the fight, I'm just curious why they would design a scan doubler that only fits properly in the A4000 video slot, but which doesn't support A4000 video modes (if that is in fact the case).


Quote from: SnkBitten;822080
Forgive my ignorance but what constitutes an AGA screenmode? 32-64-128-256 color modes?

The Scandoubler doubles the 15k native modes so I don't expect it to do anything to the DblNTSC modes.

256 color screenmodes (NTSC Hi-res or NTSC Lo-res)??   Those are fine  and look great.  Interlaced modes work but are still interlaced (no  Flicker Fixer in the CV64/3d+SD).  Tried 32 and 256 color modes, they  look great.

NTSC or PAL Hi-Res Laced 256 colors would be an AGA screen mode, yes.  So if that looks great, then it sounds like the scan doubler does work with AGA modes.  LOL, think I need more coffee!  ;)
« Last Edit: February 14, 2017, 05:57:09 AM by Oldsmobile_Mike »
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos
 

Offline SnkBitten

  • Full Member
  • ***
  • Join Date: Feb 2016
  • Posts: 113
  • Country: us
  • Gender: Male
  • Amithlon Fanatic
    • Show only replies by SnkBitten
    • http://amithlon.snkbitten.com
Re: cybervison 64/3D scandoubler in A3K
« Reply #16 on: February 14, 2017, 11:25:00 AM »
Here's my workbench in 256 color, NTSC:Hi-res Laced screenmode, A4000T with Cybervision 64/3D + Scandoubler.

[ATTACH]5605[/ATTACH]

Offline paul1981

Re: cybervison 64/3D scandoubler in A3K
« Reply #17 on: February 14, 2017, 11:51:03 AM »
The A1200 and A4000 have 24-bit graphics. If the ScanDoubler is only 12-bit then it can only approximate the true colours (24-bit) of the AGA palette. Normal Workbench colours are 12-bit values by default so that they look the same on OCS/ECS, so unless you try and tweak them I'm guessing things will appear normal. Test it with a 24-bit image or AGA coppershade or something. The game Fire & Ice CD32 version would be a good test if you have that to hand. :)
 

Offline SnkBitten

  • Full Member
  • ***
  • Join Date: Feb 2016
  • Posts: 113
  • Country: us
  • Gender: Male
  • Amithlon Fanatic
    • Show only replies by SnkBitten
    • http://amithlon.snkbitten.com
Re: cybervison 64/3D scandoubler in A3K
« Reply #18 on: February 15, 2017, 02:41:33 AM »
I tried AGA Test which seemed to run fine with no noticeable graphic issues or missing colors, but it ran a cycle of each primary RGB.
http://aminet.net/package/dev/c/aga-test

Next was Mr Copper.  
http://aminet.net/package/game/gag/mrcopper
[ATTACH]5606[/ATTACH]
640x200 256color workbench screenmode with Mr Copper running.

But if I want high color I'm going to lean towards using the Cybervision64/3D.

Offline paul1981

Re: cybervison 64/3D scandoubler in A3K
« Reply #19 on: February 15, 2017, 09:30:36 AM »
 

Offline SnkBitten

  • Full Member
  • ***
  • Join Date: Feb 2016
  • Posts: 113
  • Country: us
  • Gender: Male
  • Amithlon Fanatic
    • Show only replies by SnkBitten
    • http://amithlon.snkbitten.com
Re: cybervison 64/3D scandoubler in A3K
« Reply #20 on: February 15, 2017, 11:38:02 AM »
Quote from: paul1981;822197
Can you try it with this?

http://m68k.aminet.net/package/util/wb/Copper-Demon


Here's two shots using two different Presets...
[ATTACH]5608[/ATTACH]
[ATTACH]5607[/ATTACH]