Wikimedia needs your help in its 21-day fund drive. See our fundraising page.

Over US$165,000 has been donated since the drive began on 19 August. Thank you for your generosity!

Clipping (computer graphics)

From Wikipedia, the free encyclopedia.

When rendering graphics, clipping refers to the task of making sure that only the visible part is actually drawn. This is non-trivial, especially for 3D animations: if the objects are built up of, say, polygons, a routine is needed that determines for each polygon whether it is visible within the viewport (i.e. the part of the 3D "world" displayed) or out off the borders. Special care is needed for the case of polygons intersected by the viewport border as their shape has to be adjusted.

Several clipping algorithms have been devised.