ATI Technologies RADEON X1950 XTX - Manual (Page 82)

76
VersaVision ™
An ATI technology enabling accelerated display rotation and scaling. Any
desktop can now be rotated 90 degrees left or right, or even 180 degrees,
while maintaining the full feature set of other ATI 2D and 3D technologies,
such as SmoothVision
™ . VersaVision ™ works with single or multiple
displays.
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.
Vertex shader units
A feature built into the graphical processor which renders the texture,
magnitude and direction of the individual triangles that comprise each
polygon of a given 3D object. The more vertex shader units available
within the graphical processor, the more complex polygons that can be
generated per clock cycle, and hence finer, more naturalistic detail and
movement is possible.
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. The “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.
Video Immersion ™ II
A technology that integrates digital video features such as advanced
adaptive de-interlacing, temporal filtering, and video gamma enhancement
to produce high-quality video along with an integrated digital TV decode