Does SSAO affect performance?
It also depends a lot on the scene. The more “busy” is a scene with objects, the more impact the SSAO (or similar) will have. And it also depends on the scene’s lighting – flat lit scenes with generically simple lighting will benefit more than scenes with complex lighting setup.
What does SSAO do in games?
Screen space ambient occlusion (SSAO) is a computer graphics technique for efficiently approximating the ambient occlusion effect in real time. It was developed by Vladimir Kajalin while working at Crytek and was used for the first time in 2007 by the video game Crysis, also developed by Crytek.
What is HBAO plus?
HBAO+ is a screen-space ambient occlusion ( SSAO ) algorithm providing high efficiency on DX11 GPUs. The HBAO+ library, with binaries for Windows, Linux and OSX, as well as complete source code, is available through Github.
Is SSAO good or bad?
I recommend against using SSAO. It makes games look bad (and kind of cheap), because the results do not look much like the way light really behaves. If you want your rendering to have nice lighting, there are all kinds of preprocessed global illumination techniques you can use.
Is ambient occlusion worth?
Screen space ambient occlusion is a great method in which to develop certain games, and especially great when running a game on perhaps an older PC, or one with low CPU power. Something that might appeal to game designers is that SSAO has no load times, making their game run smoother.
How demanding is SSAO?
The most common type of ambient occlusion is SSAO or screen-space ambient occlusion. It is the least demanding out of all kinds of ambient occlusion, although the actual quality of the effect can vary greatly from game to game based on how well the developers implemented it.
Is SSAO better than HBAO?
H*AO offers better quality but with an increased performance hit. SSAO is less accurate but improves image quality with a much smaller performance penalty. If you’re going to use H*AO, from what I understand you should select HDAO if you have an ATI card or HBAO if you have an nVIDIA card.
What does HBAO do?
HBAO stands for ‘horizon based ambient occlusion’. It is a step up graphically from the simpler screen space ambient occlusion. It ups the ante from every aspect in SSAO, giving the game better and higher definition, and visibility. This option of ambient occlusion is for more heavy-duty systems.
What is the best ambient occlusion?
HDAO is more subtle than SSAO and HBAO. It’s probably the most accurate, because there’s much less incorrect darkening. Choosing HDAO over SSAO or HBAO results in a small framerate drop on AMD cards, and a significant one on Nvidia cards.