What is fsaa

[kishore_23]

Hello,which one is better 32x fsaa or 64x fsaa

 

[Lian]

Hello,which one is better 32x fsaa or 64x fsaa

1st - Wikipedia

Full-scene anti-aliasing

Modern graphics cards usually support some method of full-scene anti-aliasing (FSAA) to help avoid aliasing (or "jaggies") on full-screen images. The resulting image may seem softer, and should also appear more realistic. One method of avoiding or removing aliasing artifacts on full-screen images is supersampling[2].

However, while useful for photo-like images, a simple anti-aliasing approach (such as supersampling and then averaging) may actually worsen the appearance of some types of line art or diagrams (making the image appear fuzzy), especially where most lines are horizontal or vertical. In these cases, a prior grid-fitting step may be useful (see hinting).

In general, supersampling is a technique of collecting data points at a greater resolution (usually by a power of two) than the final data resolution. These data points are then combined (down-sampled) to the desired resolution, often just by a simple average. The combined data points have less visible aliasing artifacts (or moiré patterns).

Full-scene anti-aliasing by supersampling usually means that each full frame is rendered at double (2x) or quadruple (4x) the display resolution, and then down-sampled to match the display resolution. So a 2x FSAA would render 4 supersampled pixels for each single pixel of each frame. While rendering at larger resolutions will produce better results, more processor power is needed which can degrade performance and frame rate.

Often[citation needed], FSAA is implemented in hardware in such a way that a graphical application is unaware the images are being supersampled and then down-sampled before being displayed.

2nd - I have never heard of AA above x16 but Bigger is normally considered Better if u consider smooth edges.

 

[wh3resmycar]

2nd - I have never heard of AA above x16 but Bigger is normally considered Better if u consider smooth edges.

fermi does support 32x AA.

problem is AA normally becomes saturated when you get past 8xAA when the game is in motion.