It’s far less demanding than MSAA and SSAA, though at the expense of image quality.įXAA uses a high contrast filter to find the edges before sampling those edges and blending them. This means that instead of messing with rendering, it’s an algorithm that comes after cleaning up the jagged edges. Fast Approximate Anti-Aliasing (FXAA)įast Approximate Anti-Aliasing, or FXAA, is a post-process form of anti-aliasing. Although much less demanding than SSAA, MSAA is still taxing your hardware. These do not need to go through the super sampling process, which is the idea behind MSAA. In a scene, there are often adjacent pixels that have exactly the same color. Instead of going through the laborious process of sampling each pixel, MSAA only comes into play where aliasing can become an issue (an edge), which saves a lot of computing resources. Multi-sample anti-aliasing, or MSAA, is a cheaper form of SSAA. Because of its performance, SSAA is not an option in most modern PC games. SSAA still produces the best anti-aliasing results, but it is also the most demanding, as it is essentially rendering the image at a higher resolution. A sample is taken from each, and then the four pixels are downsampled into a single pixel that averages the color. In SSAA 4x, one pixel is magnified by four. The end result avoids jagged edges by averaging the colors near the edges. It works by taking a higher resolution image and downsampling the pixels to fit in the original resolution. Supersample anti-aliasing, or SSAA, is the most basic form of anti-aliasing. We’re focusing on the types of anti-aliasing you’ll actually find in today’s games. Many techniques are combinations or minor variations of other techniques. This is not an exhaustive list of anti-aliasing techniques. Instead of rendering the image at a higher resolution, some anti-aliasing techniques use an algorithm to look at nearby pixels and guess where the extra detail should go. In these cases, anti-aliasing technology blows the image up to a higher resolution and uses that extra detail to smooth out the rough edges in the final image. FXAA on the left, MSAA on the right.Īlthough there are many different techniques for anti-aliasing, they boil down to two main approaches. Two different types of anti-aliasing in Forza Horizon 5. For example, your browser uses anti-aliasing for text. You probably interact with anti-aliasing of some sort on a daily basis, even if you don’t play games or edit photos. There is a wide range of techniques to accomplish this. The idea of anti-aliasing is to remove or smooth out those jagged edges. You can see an example of aliasing fate 2 Below The railing is covering several square pixels, creating a jagged line where the pixel ends and the next begins. You will mainly find it in games and photo editing apps. Anti-aliasing effort to smooth out aliasing. It is a byproduct of how computer graphics are presented, as a pixel can display only one color at a time. Aliasing occurs when a curved line is drawn across square pixels. What is Anti-Aliasing?īefore answering what is anti-aliasing, we need to talk about what is aliasing. But with a little guidance on how to use the anti-aliasing settings, you can optimize any game in seconds. If used incorrectly it can affect your performance or make your game terrible. Of all the graphics settings you need to change in PC games, anti-aliasing is one of the most important. We’re here to reveal to you the anti-aliasing options you see in games so that you can get the image quality and performance your gaming PC needs. It serves a simple purpose-fixing the jagged edges that appear in the game-but the specifics are complicated. Anti-aliasing is the hidden backbone behind making your game look great.
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