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Hi!

I've been toying with this idea to use the video overlay feature
as an efficient anti alias method. Is this doable ?

Here is how it would work :

set the display to some resolution ( higher is better )
render your picture  ( at a lower , same or higher resolution than the
display )
use the overlay to scale the picture to the physical screen

cards with good scaling ( filtering etc. ) would make a nice
smoothed picture , right ?

With some luck you could get 3D FSAA on cards that don't support
it natively.


Examples of use :

 - text anti-alias :
  render the text at lower resolution, then scale it up
  to some higher resolution, and get AA filtering for "free"

 - 3D FSAA : render at higher resolution, scale down to get FSAA
   ( using the same resolution ( 1:1 scaling ) might give something
    useful too ? )

Opinions ?

Regards,
stein ( David Balazic )
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