Results 1 to 9 of 9

Thread: Full scene anti-aliasing?

  1. #1
    Member Newbie
    Join Date
    Sep 2001
    Posts
    40

    Full scene anti-aliasing?

    Anybody here got any idea how to do full scene anti-aliasing on GeForce3-class hardware? (strangely, there wasn't a single reference to this on nVidia's dev site...)
    Does nVidia provide an extension specifically for this or is it done using regular OpenGL calls?

  2. #2
    Senior Member OpenGL Guru
    Join Date
    Feb 2000
    Location
    Sweden
    Posts
    2,978

    Re: Full scene anti-aliasing?

    Assuming you are using Windows, have you tried enable FSAA in the display settings dialog?

  3. #3
    Member Contributor
    Join Date
    May 2001
    Location
    Cheltenham,Gloucestershire,England
    Posts
    59

    Re: Full scene anti-aliasing?

    Hi there,

    this may be of some help
    http://oss.sgi.com/projects/ogl-samp...ultisample.txt

    Mark

  4. #4
    Junior Member Newbie
    Join Date
    Oct 2001
    Location
    Michigan
    Posts
    7

    Re: Full scene anti-aliasing?

    You could always use the accumulation buffer, and render your scene many times, 'jittering' the scene a bit each time... Of course, you'd be lucky to achieve a framerate of 1 frame per second... But hey, the options always there.
    -------------------------
    Trent (ShiningKnight)
    http://www.voxelsoft.com/sk

  5. #5
    Member Newbie
    Join Date
    Sep 2001
    Posts
    40

    Re: Full scene anti-aliasing?

    Originally posted by Bob:
    Assuming you are using Windows, have you tried enable FSAA in the display settings dialog?
    thanks...did just that. yikes, the fps just plumetted by at least 50%! (is it normally *so* slow? my viewport isn't even large by standards!)

  6. #6
    Senior Member Regular Contributor
    Join Date
    Sep 2000
    Location
    Lubbock, TX, USA
    Posts
    197

    Re: Full scene anti-aliasing?

    Originally posted by MelvinEng:
    thanks...did just that. yikes, the fps just plumetted by at least 50%! (is it normally *so* slow? my viewport isn't even large by standards!)
    If you're fillrate limited and are using 2x or 4x antialising, the framerate hit can be very noticeable. If you're not already, try the Quincunx antialising (about as good as 4x but with a fraction of the performance cost)

  7. #7
    Senior Member Regular Contributor
    Join Date
    Apr 2001
    Posts
    340

    Re: Full scene anti-aliasing?

    Are you the only one that is going to use your demo/game/app ?? If so, using driver settings is the simplest way to get FSAA. If not, do you plan to ask the user to go by himself in the driver settings and turn FSAA on? Are you sure he/she will know how to do this? What if there is no FSAA driver setting but the card exposes GL_EXT_Multisample ?
    IMHO, relying on a driver setting to get any kind of feature/effect is not a good method.

    Just my 2 cents.

  8. #8
    Member Newbie
    Join Date
    Sep 2001
    Posts
    40

    Re: Full scene anti-aliasing?

    Posted by Dodger:
    If you're fillrate limited and are using 2x or 4x antialising, the framerate hit can be very noticeable. If you're not already, try the Quincunx antialising (about as good as 4x but with a fraction of the performance cost)
    I have a GeForce2 Ultra but I don't see any "Quincunx" setting for antialiasing. Is it available only for GeForce3 cards?
    The only antialiasing options I have in the GeForce2 Ultra control panel applet are "No antialising", "1.5x1.5", "2x2" and "2x2(LOD bias)"....no "4x4" or "Quincunx" whatsoever.
    Am I missing something here?

  9. #9
    Senior Member OpenGL Guru
    Join Date
    Mar 2001
    Posts
    3,574

    Re: Full scene anti-aliasing?

    Quincunx is avaliable only on GeForce 3's.

Similar Threads

  1. Replies: 0
    Last Post: 02-09-2012, 05:58 PM
  2. Anti aliasing
    By Cucus in forum OpenGL: Basic Coding
    Replies: 3
    Last Post: 08-06-2011, 06:43 AM
  3. Full Screen anti-aliasing
    By leekerley in forum OpenGL: Advanced Coding
    Replies: 1
    Last Post: 03-02-2001, 07:23 AM
  4. Full Screen Anti-aliasing
    By MrFSAA in forum OpenGL: Advanced Coding
    Replies: 12
    Last Post: 02-05-2001, 09:23 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Proudly hosted by Digital Ocean