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Documentation about the Vampire hardware

Vampire V4 and the Scanlines

Pedro Cotter
(Apollo Team Member)
Posts 234
19 Jun 2019 08:53


Not a fan of Scanlines? You have the control...

  EXTERNAL LINK


Lord Aga
(Apollo Team Member)
Posts 95
19 Jun 2019 09:20


Aaawesooome :)


Crow Mohikan

Posts 78
19 Jun 2019 15:58


Can be possible using other filters like supereagle,hq2x or 2xsai someday? Can be possible entegrate other filters to fpga?

It can be very nice in some games or some emulators.



Tim Trepanier

Posts 92
19 Jun 2019 17:05


How about displaying modes that were designed with 4:3 aspect ratio, like PAL and NTSC, centered in todays widescreen monitors instead of stretching them out?

Stretching to todays monitors distorts everything. Many youtubers are editing there videos to 4:3 so they look proper.


Richard Gatineau

Posts 57
20 Jun 2019 13:19


Hello Pedro!

Pedro Cotter wrote:
Not a fan of Scanlines? You have the control... EXTERNAL LINK

OK... Should sound good. ^^
 
Please, is the scanline option decrease the picture resolution? (i.e. from 720p to 360p) or the display is basically upscalled (i.e. from 720p to 1440p) and next the scanlines are applied to virtually support a highest screen resolution?
 
  Thank you! :)


Roy Gillotti

Posts 372
20 Jun 2019 13:37


Richard Gatineau wrote:

  Hello Pedro!
 
 
Pedro Cotter wrote:
Not a fan of Scanlines? You have the control... EXTERNAL LINK

  OK... Should sound good. ^^
   
  Please, is the scanline option decrease the picture resolution? (i.e. from 720p to 360p) or the display is basically upscalled (i.e. from 720p to 1440p) and next the scanlines are applied to virtually support a highest screen resolution?
   
    Thank you! :)
 

  Most televisions H.D.M.I. input can't display lower resolutions like 360p, I think even the current Vampires automatically upscales to something more typical.


Sean Sk

Posts 324
20 Jun 2019 14:09


I was just hoping for some clarification:
 
I really like the look of the scanlines and obviously the scanlines would only show on non-interlaced PAL/NTSC resolutions such as old games, PAL/NTSC Workbench resolution etc, but what resolution is the picture being up-scaled to out through the DIGITAL-VIDEO port and are there any scaling artifacts with the scanlines?
 
Awesome job guys, looks great!


Santiago Gutierrez

Posts 41
20 Jun 2019 18:53


Could we have this feature in our lovely V2 :) ??


Gunnar von Boehn
(Apollo Team Member)
Posts 4454
21 Jun 2019 07:45


sean sk wrote:

  but what resolution is the picture being up-scaled to out through the DIGITAL-VIDEO port and are there any scaling artifacts with the scanlines?
 

 
The V4 does send real PAL and real NTSC resolution.
So its pixel by pixel like the original display.
Therefore there are no scaling up artifacts.


Richard Gatineau

Posts 57
22 Jun 2019 13:49


Roy Gillotti wrote:
Most televisions H.D.M.I. input can't display lower resolutions like 360p, I think even the current Vampires automatically upscales to something more typical.
My question is more about the resolution used to have an equivalent display as a 720p or 360p while using the scanline to each frame.


Sean Sk

Posts 324
22 Jun 2019 15:21


Gunnar von Boehn wrote:

The V4 does send real PAL and real NTSC resolution.
So its pixel by pixel like the original display.
Therefore there are no scaling up artifacts.

Excellent! Thanks for the explanation Gunnar.


Tim D

Posts 55
14 Oct 2019 07:32


Nice that we have this feature. But to me it's not clear what key to press to toggle the scanlines :)

Is that a Coffin or hardware feature? And only for AGA screenmodes or can we do this for all screenmodes?


Gunnar von Boehn
(Apollo Team Member)
Posts 4454
14 Oct 2019 08:07


Tim D wrote:

Nice that we have this feature. But to me it's not clear what key to press to toggle the scanlines :)
 
  Is that a Coffin or hardware feature? And only for AGA screenmodes or can we do this for all screenmodes?

This is a hardware feature.
By pressing F11 you can turn Scanlines ON/OFF.
This is AGA and SAGA screen modes.


posts 13