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Virtual Dictionary

Ambient Occlusion

Ambient occlusion sounds like a lighting shader method that deals with occluded objects, and that is precisely what it is. It is a method of shading that works with raycast and raytraced lighting models, but which factors in the attenuation of any lightsource that is partially occluded by objects in the way.

It deals with effects such as light filtering through a crack in the wall, or sunlight passing through leaves, and attempts to recreate the dynamic changes in strength of a given light source. Perhaps predictably, it is significantly more computationally expensive than raytracing.

Below, we offer a selection of links from our resource databases which may match this term.

Related Dictionary Entries for Ambient Occlusion:

Ambient Occlusion

Ambient Occlusion Map

Dirt Map

Grunge Map


Physically Based Rendering


Resources in our database matching the Term Ambient Occlusion:

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Linked resource
A Closer Look At Parallax Occlusion Mapping
An in-depth Gamedev article, containing step by step coding advice for implementing parallax occlusion mapping to textures, such that the simulated heights can even self-occlude.

Locally Hosted resource
iPhone Based Hearing Aids
A novel and very practical use for an iPhone as an auxiliary hearing aid has been developed. The soundAMP program takes control of the iPhone, and essentially uses the in-built microphone to boost ambient noise levels.

Locally Hosted resource
3D Printed Thermoelectric generators
Thermoelectric generators convert ambient heat into electrical power, providing a means to run sensor systems without relying on batteries, anywhere where there is a heat differential present. Unfortunately, until now it has never been possible to 3D print them, meaning their inclusion increased the cost of sensor systems, dictated design aspects, and prevented them from being manufactured in a single print run. None of these factors are entirely applicable any longer.


Industry News containing the Term Ambient Occlusion:

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Forty-five men you've probably never heard of were honored with an Academy Awards ceremony of their own that recognized scientific and technical achievements in moviemaking.

The engineers behind the latest in ambient occlusi...

(Press Release) LightWork Design, supplier of rendering solutions for developers of advanced 3D computer graphics software, is pleased to announce that the latest release of TurboCAD? Pro v16, from IMSI/Design, incorporates new updated Ligh...

Surgeons of University Hospitals Leuven have been the first to operate on a patient with retinal vein occlusion using a surgical robot. Operated by an eye surgeon, the robot uses a needle of barely 0.03 millimetre to inject a thrombolytic d...

December 2 - 3, 2010
Phoenix, Arizona USA

Ambient media and systems culminate from the emergence of mobile communication, sensor-actuator technology, virtual environments, and interactive computing. They represent the ...

Electronic paper that reflects light, instead of filtering it from a backlight, as most conventional displays do, is easy on the eyes and saves on battery life. But this reliance on ambient light becomes a handicap when trying to make a bri...