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Bi-linear texture
filtering: a technique
used to improve the
ability to scale 3D
graphics, especially
texture maps. Bilinear
texture filtering
averages the four
adjacent texels (texture
map element) or
interpolates, thus
creating a new texel.
Mip-mapping: a
texture map is stored at
several levels of detail
in a structure called a
mip-map. Tri-linear
mip-mapping uses a
more complex
interpolation technique
than bi-linear filtering -
resulting in a more
realistic rendering used
for landscapes and
motion.
Document ECG026/0498
W
P
HITE
APER
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Table 5: GLoria-XL Double Buffered Resolutions
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Double Buffered
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Capabilities
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Resolution; Max Colors
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1920 x 1200; 32K
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1920 x 1080;16M
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1600 x 1280; 16M
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1600 x 1200;16M
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1280 x 1024; 16M
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1152 x 864; 16M
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1024 x 768; 16M
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GLoria-XL Features
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Features of the GLoria-XL 3D graphics controller include:
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Support for major industry 3D APIs, including
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OpenGL – Open Graphics Library is a software interface to graphics hardware developed
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by Silicon Graphics Inc.
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Direct3D – A set of APIs for real-time 3D graphics that are an addition to the Microsoft
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DirectX interactive media technologies. They provide a comprehensive 3D solution for
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software developers building interactive media programs and games
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Heidi – 3D API from Kinetix (an AutoDesk company) that provides an immediate 2D
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and 3D mode drawing interface for 3D Studio Max.
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Display list drivers – Provide performance acceleration for AutoCAD R13 and
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Microstation.
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On-board VGA support with S3 Trio64V2 chip for full-screen DOS box support on
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Windows NT Workstation 3.51 and 4.0.
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GLoria Setting, an applet that allows the user to optimize the performance of the GLoria-XL
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for a specific application with the click of a button. This applet automatically optimizes the
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GLoria-XL for a specified application by changing the driver parameters to values that
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"Tune" it for that application. All users have to do is select their program from a list that is
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provided. The supported applications include Pro/E, AutoCAD, SoftImage, and 3Dstudio
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Max.
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Hardware accelerated 3D, 32-bit z-buffering for realistic depth perception and texture
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mapping.
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Full, 32-bit double buffering for smooth animation by allowing the next image to be created
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in off-screen memory while displaying the current image.
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Gouraud shading for smooth surfaces.
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Texture mapping for creating realistic images.
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Fog for fading effects, atmospheric effects, and depth-queuing.
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Anti-aliasing to provide smooth colors for rendered scenes by blending the colors of
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neighboring pixels.
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Alpha-blending for creating transparent effects such as an object behind a window.
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1 million Gouraud-shaded, depth-buffered, 25-pixel triangles per second with 32-bit color,
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32-bit Z-buffer, dithering, stenciling, clipping, and fogging enabled.
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14
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GLoria-XL
Max Hz
80
89
90
96
141
186
235
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