|
|
| Line 1: |
Line 1: |
| − | __NOTOC__
| + | #REDIRECT [[Glossary#Z-Buffer]] |
| − | {{:[[OutOfDate]]}}
| + | |
| − | | + | |
| − | = Z-Buffer =
| + | |
| − | | + | |
| − | An algorithm used in 3-D graphics to determine which objects, or parts of objects, are visible and which are hidden behind other objects. With Z-buffering, the graphics processor stores the Z-axis value of each pixel in a special area of memory called the Z-buffer. Different objects can have the same x- and y-coordinate values, but with different z-coordinate values. The object with the lowest z-coordinate value is in front of the other objects, and therefore that's the one that's displayed.
| + | |
| − | | + | |
| − | An alternate algorithm for hiding objects behind other objects is called Z-sorting. The Z-sorting algorithm simply displays all objects serially, starting with those objects furthest back (with the largest Z-axis values). The Z-sorting algorithm does not require a Z-buffer, but it is slow and does not render intersecting objects correctly.
| + | |
| − | ----
| + | |
| − | [[Category:Glossary]]
| + | |
