screen space directional occlusion

{{Short description|Computer graphics technique}}

Screen space directional occlusion (SSDO) is a computer graphics technique enhancing screen space ambient occlusion (SSAO) by taking direction into account to sample the ambient light (both the light coming directly at an object, as well as the light reflected off of the object directly behind it), to better approximate global illumination.{{cite web |url=https://thewiredshopper.com/ambient-occlusion/?nonitro=1 |title=What is Ambient Occlusion? Does it Matter in Games? |date=31 December 2021 |format= |accessdate=}}{{cite web |url=https://www.geeks3d.com/20100619/ssdo-screen-space-directional-occlusion/ |title=SSDO: Screen Space Directional Occlusion | Geeks3D |date=19 June 2010 |format= |accessdate=}}{{cite web|title=SSDO|url=https://people.mpi-inf.mpg.de/~ritschel/Papers/SSDO.pdf}}{{cite web |url=https://kayru.org/articles/dssdo/ |title=Deferred Screen Space Directional Occlusion |format= |accessdate=}}