ELSA Synergy 2000, Руководство пользователя

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Glossary
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| ELSA Synergy 2000 |
46
EN
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Horizontal scan frequency – The mon-
itor line frequency in kHz. This value must
be set according to the monitor's require-
ments to prevent the monitor from being
damaged in extreme cases!
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Interpolation – When displayed, video
data must be stretched or shrunk to the
correct window size. If the individual pix-
els are simply multiplied when stretched,
unwanted blocks (the staircase effect,
➟
Aliasing ) occur. This can be prevented us-
ing a filtering interpolation technique (av-
eraging). While horizontal interpolation is
easily accomplished, vertical interpolation
is more complicated and requires buffered
storage of the most recent image lines.
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ISSE – Extended Intel command set cur-
rently used in the Pentium III processors.
70 additional commands are intended
above all to accelerate the floating-point
operations that are especially important
for 3D games.
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Luminance – Black/white information in
the transfer of video signals.
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MIP mapping – MIP mapping assigns
several textures with different resolutions
to an object based on distance. If the ob-
server gets closer to the object, the repre-
sentation of the texture becomes more de-
tailed.
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MMX – Extended Intel command set used
by 166 MHz and higher Pentium proces-
sors bearing this designation. 57 addition-
al commands accelerate especially integer
operations.
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Multifrequency (multisync) monitor –
A monitor that can be operated using dif-
ferent line frequency ranges and can ad-
just itself to different image signals (reso-
lutions).
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OpenGL – 3D software interface (3D
API). Such as implemented in Windows
NT and optionally obtainable for Windows
95, this is based on Iris GL from Silicon
Graphics and is licensed by Microsoft and
ELSA.
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Page flipping – In the faster Page flip-
ping method, only the buffer addresses are
exchanged. The slower method (
➟
Blit-
ting ) copies the contents of the
➟
Back
buffer to the
➟
Front buffer .
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PCI bus – Abbreviation for peripheral
component interconnect bus. A system of
parallel conductors for transferring data
between individual system components,
especially to expansion cards.
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Phong shading –
➟
Shading
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Pixel – A picture element
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Pixel frequency – Pixel cycle frequen-
cy: The number of drawn
➟
Pixel per sec-
ond in MHz.
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PolygonOffset –
➟
Z biasing
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Primitive – Simple, polygonal, geomet-
ric objects, such as triangles. In most cas-
es, 3D landscapes are broken down into
triangles.
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RAM – Abbreviation for Random Access
Memory. Main memory and memory ex-
pansion in
➟
VRAM or
➟
DRAM depend-
ing on the graphics board.