HP Workstation x2000 3Dlabs Wildcat III 6110 user's guide - Page 55

Stencil Buffer, Stipple masking, Streaming SIMD, SuperScene Antialiasing, Tessellation, Texture

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TERMS AND DEFINITIONS Stencil Buffer Similar to stipple masking, the stencil buffer assists with the creation of transparent effects. Stipple masking A technique that spatially creates transparent effects by rendering an object through various patterns. Streaming SIMD An instruction set developed by Intel for Pentium -processor based systems. Streaming SIMD can improve 3D vertex transformation and lighting, among other operations. SuperScene Antialiasing SuperScene antialiasing (see Antialiasing) is an enhanced version of multisampling and offers true, multisampled, scene-based antialiasing of all OpenGL primitives in a scene. SuperScene Antialiasing is a feature found only on Wildcat graphics accelerators. SVGA Super Video Graphics Array. SVGA runs at 800 x 600. Tessellation The initial part of the 3D pipeline where the object is described by a set of triangles. Texture Mapping A technique that enables 2D graphic images to be "wrapped" around or "pasted" on to a 3D primitive. Perspective correction and lighting calculations allow for added realism. Transformation The change in rotation, size, position, and perspective of an object in 3D space. Transparency A function that refers to the rendering of transparent (non-opaque) objects. Transparency is generally accomplished on a polygon rendering system using either screen-door transparency or alpha blending. Vectors/second Lines drawn per second. VGA Video Graphics Array. VGA runs at 640 x 480. VHR Very High Resolution. VHR runs at 1280 x 1024. VRAM Video Random Access Memory is an expensive, fast type of RAM that is used as display memory on high-end graphics boards. VRML Virtual Reality Modeling Language. Z-Buffer Also known as the Depth Buffer, the Z-Buffer is a region of memory containing the depth component of a pixel. Used, for example, to eliminate hidden surfaces from the image. 3Dlabs Graphics Accelerator Card User's Guide 51

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TERMS AND DEFINITIONS
Stencil Buffer
Similar to stipple masking, the stencil buffer assists with the creation of transparent effects.
Stipple masking
A technique that spatially creates transparent effects by rendering an object through various patterns.
Streaming SIMD
An instruction set developed by Intel for Pentium -processor based systems. Streaming SIMD can
improve 3D vertex transformation and lighting, among other operations.
SuperScene Antialiasing
SuperScene antialiasing (
see Antialiasing
) is an enhanced version of multisampling and offers true,
multisampled, scene-based antialiasing of
all OpenGL
primitives in a scene. SuperScene Antialiasing is a
feature found only on Wildcat graphics accelerators.
SVGA
S
uper V
ideo G
raphics A
rray. SVGA runs at 800 x 600.
Tessellation
The initial part of the 3D pipeline where the object is described by a set of triangles.
Texture Mapping
A technique that enables 2D graphic images to be “wrapped” around or “pasted” on to a 3D primitive.
Perspective correction and lighting calculations allow for added realism.
Transformation
The change in rotation, size, position, and perspective of an object in 3D space.
Transparency
A function that refers to the rendering of transparent (non-opaque) objects. Transparency is generally
accomplished on a polygon rendering system using either screen-door transparency or alpha blending.
Vectors/second
Lines drawn per second.
VGA
V
ideo G
raphics A
rray. VGA runs at 640 x 480.
VHR
V
ery H
igh R
esolution. VHR runs at 1280 x 1024.
VRAM
V
ideo R
andom A
ccess M
emory is an expensive, fast type of RAM that is used as display memory on
high-end graphics boards.
VRML
V
irtual R
eality M
odeling
L
anguage.
Z-Buffer
Also known as the Depth Buffer, the Z-Buffer is a region of memory containing the depth component of a
pixel. Used, for example, to eliminate hidden surfaces from the image.
3Dlabs Graphics Accelerator Card User's Guide
51