ATI Technologies RADEON X1950 XTX - Manual (Page 72)

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DVI
Acronym for “Digital Video Interface,” a standard video connection used
on many current computer displays. There are three types of DVI
connections: DVI-A (analog), DVI-D (digital), and DVI-I (integrated,
capable of either analog or digital). It supports high-bandwidth video
signals over 160 Hz, so it is most often used for high-resolution displays.
EDTV
Acronym for “Enhanced Definition Television”, which produces better
television image quality than Standard Definition Television (SDTV).
Applicable to the NTSC broadcast format, EDTV displays are capable of
depicting the standard 480 horizontal scan lines in a non-interlaced format.
Instead it paints all of the scan lines in one pass, which is called progressive
scanning, a process which also removes the “jaggies” inherent in the
interlaced television signals.
Flat Shading
A lighting technique that shades each polygon of a 3D object based on
where the source of the light is and the angle of the polygon in relation to
it. It enables relatively fast rendering of 3D objects, although it can make
those objects appear “faceted” as each visible polygon is set to a particular
color value, and consequently does not produce as realistic an effect as
obtained when using Gouraud shading.
Fog
Term used to describe the blending of an object using a fixed color as
objects are made to appear more distant from the viewer.
Frame Buffer
The portion of the memory buffer on the graphics card used to store the
image being displayed. All rendering processes have been accomplished by
this stage and this buffer contains only a one-to-one relationship of the data
to be relayed to the display.