次の項目は別ページに分割しました。
SSAO (Screen Space Ambient Occlusion)
入手：
Amplify Occlusion | Unity Asset Store [Official]
Fast SSAO (Mobile / URP / VR / AR / LWRP) | Unity Asset Store [Official]
Basic SSAO (URP / LWRP) | Unity Asset Store [Official]
Marggob SSAO | Unity Asset Store [Official]
SSAO Pro | Unity Asset Store [Official]
Volumetric Ambient Occlusion | Unity Asset Store [Official]
Horizon Based Ambient Occlusion | Unity Asset Store [Official]
Marggob SSAO
入手：
Marggob SSAO | Unity Asset Store [Official]
Volumetric Ambient Occlusion
動画：
入手：
Volumetric Ambient Occlusion | Unity Asset Store [Official]
ドキュメント：
User Guide – Volumetric Ambient Occlusion | Project Wilberforce [Official]
フォーラム：
Volumetric Ambient Occlusion | Unity Forum
Mini Engine AO
リポジトリ：
keijiro/MiniEngineAO: SSAO image effect from Microsoft MiniEngine, ported to Unity – GitHub
NNAO
動画：
Neural Network Ambient Occlussion
リポジトリ：
simeonradivoev/NNAO: Neural Network Ambien Occlusion – GitHub
参考：