What is Ambient Occlusion? Ambient Occlusion is a rendering technique that calculates the lighting intensity for each object based on ambient lighting. Ultimately, it makes for a more realistic image, one where objects look connected to the world they inhabit rather than floating above it. Ambient occlusion is a scalar value recorded at every surface point indicating the average amount of self-occlusion occurring at the point on the surface. It measures the extent to which a location on the surface is obscured from surrounding light sources. Ambient occlusion is a rendering technique that provides an estimation of how intense light should be at different parts of a visible surface. It considers various factors, such as the environment of the game and the position of the light source. In 3D computer graphics, modeling, and animation, ambient occlusion is a shading and rendering technique used to calculate how exposed each point in a scene is to ambient lighting. Ambient occlusion adds soft shadows in the crevices, corners, and contact points of a 3D scene, simulating how light naturally gets blocked in tight spaces. Without it, objects in games and 3D renders can look flat and disconnected from their surroundings. Ambient occlusion is a shading technique that adds depth by darkening areas where surfaces are close to each other, such as corners, edges, and intersections. Instead of calculating physical light behavior, it evaluates how nearby geometry restricts open space around a surface point. At its core, ambient occlusion is a concept that thrives on the premise that objects in proximity to one another tend to obscure or occlude ambient light to varying degrees. Conversely, objects exposed to open space or distanced from their neighbors bask in the embrace of a brighter ambient light. Q: What is ambient occlusion in simple terms? A: Ambient occlusion is a shading technique that darkens areas where geometry blocks ambient light from reaching a surface — like the corner where a wall meets a floor. The basics behind screen-space ambient occlusion are simple: for each fragment on a screen-filled quad we calculate an occlusion factor based on the fragment's surrounding depth values. The occlusion factor is then used to reduce or nullify the fragment's ambient lighting component. Ambient occlusion is a shading technique used in 3D graphics that simulates the soft shadows forming in corners, crevices, and tight spaces where light has a harder time reaching.