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30 Glossary - Synchronization
Trilinear Filtering
A sampling method used to produce realistic-looking 3D objects. Trilinear filtering
averages one of the bilinear filter mipmap levels along with the standard mipmap
samples.
Vertex Shader
Three-dimensional objects displayed on a screen are rendered using polygons,
each of which is made up of intersecting triangles. A vertex is a corner of a triangle
where it connects to another triangle, and each vertex carries a considerable
amount of information describing its coordinates in 3D space, as well as its weight,
color, texture coordinates, fog, and point size data. A vertex shader is a graphics
processing function that manipulates these values, producing such things as more
realistic lighting effects, improved complex textures such as hair and fur, and more
accurate surface deformations such as waves rippling in a pool or the stretching
and wrinkling of a character’s clothes as he or she moves.
VGA Connector
A type of graphics connector, sometimes also called an analog connector. It is the
most common type of video connector available, consisting of 15-pins set in three
rows. VGA is an acronym for “Video Graphics Array,” which is also the name for
the video resolution mode of 640x480 pixels, the lowest standard resolution
supported by virtually all video cards.
Z-buffer
The portion of video memory that keeps track of which onscreen elements can be
viewed and which are hidden behind other objects. In the case of a 3D image, it
keeps track of which elements are occluded by the foreground in relation to the
user’s perspective, or by another 3D object.
ATI FirePro™ S400 Syncronization Module
© 2009 Advanced Micro Devices, Inc.