News | Hardware | Articles | Guides | Price Comparison | Contribute | Games | Support Us  
Neoseeker: Games/Hardware Search Engine
n e o s e e k :
  Login    Register  
  Motherboards  Video Cards  Cooling 

Neoseeker : Hardware : Hardware FAQs : Video Cards : What is supersampling (antialiasing technique)?

 FAQs Categories
  Browse FAQs
  Cases & Cooling
  Component Troubleshooting
  CPU/Component Cooling
  CPUs & Processors
  Gaming Consoles
  Operating Systems
  Peripherals & Connectivity
  Silent PC
  Video Cards

Suggest a new FAQ
Comment on this FAQ


 Recent FAQs Updates
· What is multisampling (antialiasing technique)?

· What is supersampling (antialiasing technique)?

· What is NCQ (Native Command Queueing) and Why do we want it?

· Where are my Outlook Express Files Stored?

· How come my hard drive in XP or Windows 2000 only shows up as 137 GB when it is actually >137GB?

 List all recent »

Find the lowest prices for CPUs!!!

Athlon XP chips:
  • 2800XP+ - New!
  • 2600XP+
  • 2400XP+
    Intel P4 chips:
  • P4 3.06Ghz - New!
  • P4 2.8Ghz
  • P4 2.53Ghz
    Intel Celerons
    Athlon MP chips
    Most popular CPUs
  • Search for lowest prices

     Recent Forum Posts
    ·NTLDR is Compressed
    ·will the warranty cover these problems "??
    ·agp video card help...
    ·is this build viable
    ·What one?
     hardware forums »

    Last Updated: Jan 5, 2005
    View this page as Plain HTML
        Add Suggestion
    What is supersampling (antialiasing technique)?

    Algorithmic antialiasing techniques involve "sampling" the content of each pixel at multiple locations, meaning that the color is computed at more than one location inside the area covered by the pixel. The results from these "samples" are combined to determine the final color of the pixel. These samples are essentially additional pixels, used to increase the effective resolution of the image to be displayed. If the edge of an object falls partially inside the area of a pixel, its color and the color of another object that partially fills the "area" of the pixel can both be used to calculate the final color. The result is smoother transitions from one line of pixels to another line of pixels along the edges of objects, where aliasing is most obvious.

    "Supersampling" is an antialiasing technique that is simply a brute force approach and is used in NVIDIA's GeForce2 GPUs and other modern graphics processors. A graphics processor that uses supersampling renders the screen image at a much higher resolution than the current display mode, and then scales and filters the image to the final resolution before it is sent to the display. A variety of methods exist for performing this operation, but each requires the graphics processor to render as many additional pixels as required by the supersampling method. Additionally, because the graphics processor is rendering more actual pixels than will be displayed, it must scale and filter those pixels down to the resolution for final display. This scaling and filtering can further reduce performance.

    The degree of scaling in a specific supersampling mode is often identified by the ratio of pixels in the unscaled image to the number of pixels in the final, scaled output. For example, 2x supersampling writes twice as many pixels to the frame buffer as would be required without antialiasing. 4x writes four times as many pixels. As you might guess, supersampling causes a substantial drop in performance as measured by frame rate. If the graphics processor renders four times as many pixels, then the frame rate will be one fourth what it was in the standard display mode. In fact, the performance drop can be even worse than the "x" multiple of the supersampling setting because of the scaling step mentioned in the previous paragraph.

    Quoted From NVIDIA Corporation

    contributed by:

    Is this answer useful?

    Yes   No

    So far 92 of 179 person(s) think this answer is useful.

    entry created by: Jan 5, 2005

    Add a Comment to this FAQ entry

    Crucial Memory
    Latest Articles
    · Antec Take 4 Rackmount Review

    · BFG GeForce 7900 GTX OC SLI

    · GeForce 7600 GS and 7300 LE Preview

    · Hotway HD9-U2LA Review

    · ATI Driver Update: Cats 6.3

     More articles »

     News Headlines
    Fri, Mar 24
    · Hybrid Graphics Merges With NVIDIA

    · Dual core price war?

    · Microsoft re-writing 60% of Vista before release???

    Thu, Mar 23
    · Zelda for the DS

    · Halo 2 for Vista

     More news »

     Net Updates
    ·AeroCool Zerodba
    ·Crucial Gizmo! Overdrive
    ·Biostar PT880 Pro-A7 Combo
    ·Thermaltake Matrix VX
    ·OCZ EL PC2-6400 Platinum XTC Dual Channel Kit
    ·Zalman VF900-Cu
     More updates »


    Advertise       About       Contact us       New Users 
      » Main  » News  » Hardware  » Games » Companies  » Prices  » Forums 
      © Copyright Neo Era Media Inc., 1999-2001. All rights reserved. Terms of Use   Privacy Policy

    0.1724009514 seconds to build this page