Hidden-surface determination

In 3D computer graphics, hidden-surface determination (also known as shown-surface determination, hidden-surface removal (HSR), occlusion culling (OC) or visible-surface determination (VSD)) is the process of identifying what surfaces and parts of surfaces can be seen from a particular viewing angle. A hidden-surface determination algorithm is a solution to the visibility problem, which was one of the first major problems in the field of 3D computer graphics[citation needed]. The process of hidden-surface determination is sometimes called hiding, and such an algorithm is sometimes called a hider[citation needed]. When referring to line rendering it is known as hidden-line removal[citation needed]. Hidden-surface determination is necessary to render a scene correctly, so that one may not view features hidden behind the model itself, allowing only the naturally viewable portion of the graphic to be visible.


From Wikipedia, the free encyclopedia · View on Wikipedia

Developed by Nelliwinne