|
Glossary
39
|
ELSA GLADIAC
|
EN
쎲
Fixed-frequency monitor –
A monitor
that can only be operated with at a
specific resolution and refresh rate.
쎲
Flat-shading –
See Shading.
쎲
Frame buffer –
A portion of the graphics
memory that is used to construct the
image that is to appear on the monitor
next. The frame buffer is also used to
calculate transparency effects.
쎲
Front buffer –
Refers to the visible
image area in the case of
➞
Double
buffering.
쎲
Full-scene anti-aliasing –
Describes a
type of anti-aliasing that is applied to a
complete frame. Two processes are used
in this form of anti-aliasing: 'Super
sampling' and 'accumulated buffers'. In
the case of super sampling, a much higher
resolution is calculated than the one to be
displayed and then reduced. With the
accumulated-buffer process, several
views of a scene are drawn that are then
combined to a single image.
쎲
Geometrical transformation –
The
position of the object in space is
determined based on the observer.
쎲
Gouraud shading –
➞
Shading.
쎲
Graphics accelerator –
A graphics
accelerator card is especially well-suited
for the user environment that requires
intense graphics.
쎲
HighColor –
Stands for a 15 or 16-bit-
per-pixel-wide graphic display mode
(32,768 or 65,536 colors).
쎲
Horizontal frequency –
The monitor
line frequency (horizontal scan frequency)
in kHz. This value must be set according to
the monitor's requirements to prevent the
monitor from being damaged in extreme
cases!
쎲
Horizontal scan frequency –
Horizontal scan frequency, monitor line
frequency in kHz. This value must be set
according to the monitor's requirements to
prevent the monitor from being damaged
in extreme cases!
쎲
Interpolation –
When displayed, video
data must be stretched or shrunk to the
correct window size. If the individual
pixels are simply multiplied when
stretched, unwanted blocks (the staircase
effect) occur. This can be prevented using
a filtering interpolation technique
(averaging). While horizontal
interpolation is easily accomplished,
vertical interpolation is more complicated
and requires buffered storage of the most
recent image lines.
쎲
ISSE –
Extended Intel command set
currently used in the Pentium III and which
will be available in Celeron CPUs in future.
70 additional commands are intended
above all to accelerate the floating-point
operations that are especially important
for 3D games.
쎲
Luminance –
Color information in the
transfer of video signals.
쎲
MIP mapping –
MIP mapping assigns
several textures to an object based on
distance. If the observer gets closer to the
21663_DE_0300.book Seite 39 Montag, 10. April 2000 12:22 12
