Why is AA in video games so damanding?
In: 3
Different types of anti-aliasing have different effects on the performance. SSAA is incredibly resource-intensive because it effectively forces the GPU to render each frame had a multiple of its final resolution and then downscale it for display. This means that the number of pixels that need to be rendered goes up proportionately to the amount of anti-aliasing you choose.
There are a number of proprietary anti-alias algorithms that take shortcuts to make it faster, but in all cases your effectively asking the GPU to render more information than you will ultimately see so that it can condense it into a nicer looking image at the end
Latest Answers