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What is full resolution screen space ambient occlusion?
Full Resolution Screen Space Ambient Occlusion Enabling this setting will make the game apply SSAO at the same resolution the game is rendering at. By default, the SSAO is rendered at a fraction of the native resolution to help with performance.
Does screen space ambient occlusion affect FPS?
The typically frame rate hit you can expect when enabling Ambient Occlusion is between 5-10%. There are exceptions though, such as Apex Legends. Poor implementation at launch mean Ambient Occlusion could cause you to lose up to 20% of your FPS in Apex Legends.
How is ambient occlusion calculated in a computer?
In most cases, ambient occlusion is calculated by constructing a hemisphere of rays emanating from a point on the surface in all directions and then checking them for the intersection with other objects. Rays that reach the background or sky increase the brightness of the surface, while the rays that cross other objects do not add brightness.
How does screen space ambient occlusion ( SSAO ) work?
The screen space part of screen space ambient occlusion (SSAO) comes from the fact that the algorithm developed by Crytek works in screen space. It does this by sampling nearby points on a hemisphere and calculate their screen space positions. Using these positions the samples are used to lookup the geometry depth values at these points.
How is the occlusion of light in space calculated?
Shadows do not remain black, they dissipate, creating halftones and obscuring those places in space that get less light. In most cases, ambient occlusion is calculated by constructing a hemisphere of rays emanating from a point on the surface in all directions and then checking them for the intersection with other objects.
Which is the first game to use ambient occlusion?
“Crysis,” released in the fall of 2007, is the first game on the CryEngine 2 game engine that used the ambient occlusion method called SSAO (Screen Space Ambient Occlusion). The screen space ambient occlusion method works as a post-effect, and it is calculated in the screen space. Today, this technology is used in all modern game engines.