Ambient Occlusion

Ambient Occlusion is how exposed each point in a scene is to ambient lighting. It's effect is that it darkens darkens enclosed and sheltered areas of the scene.

VXAO (Voxel Ambient Occlusion ) - 2016


Scalable Ambient Obscurance - 2012

HDAO (High Definition Ambient Occlusion) - 2009

HBAO (Image-Space Horizon-Based Ambient Occlusion) - 2008

SSAO (Screen Space Ambient Occlusion) - 2007

Each full screen pass sample the depth around each pixel and a darkening value is computed based on depth differences. Sampling is done randomly in a sphere around each pixel.

Accessibility Shading - 2002

Large Scale Ambient Occlusion: Eliminating light leaks - 2018

Large scale ambient occlusion: introduction

Study Notes: Improved Ambient Occlusion

Scalable Ambient Obscurance for the Mathematically Uninclined - 2019

Local linear models and guided filtering – an alternative to bilateral filter

Ambient Occlusion