|
Fast Approximate Anti-Aliasing (FXAA) is an anti-aliasing algorithm created by Timothy Lottes under NVIDIA. The main advantage of this technique over conventional anti-aliasing is that it does not require large amounts of computing power. It achieves this by smoothing jagged edges ("jaggies") according to how they appear on screen as pixels, rather than analyzing the 3D models itself as in conventional anti-aliasing.〔 In addition it smooths edges in all pixels on the screen, including those inside alpha-blended textures and those resulting from pixel shader effects, which were previously immune to the effects of multisample anti-aliasing (MSAA). The downsides are that textures may not appear as sharp if they are included in the edge detection, and it must be applied before rendering the HUD elements of a game, lest it affect them too. It is very similar to a patent Image Processor,〔(【引用サイトリンク】 title=Image processor )〕 submitted by Stephen Todd at IBM in 1991. ==Processes== The processes of FXAA are listed as follows: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fast approximate anti-aliasing」の詳細全文を読む スポンサード リンク
|