Compaq 6000 Supplementary Manual page 13

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Architecture in the Compaq Professional Workstation 6000 is dual peer-PCI buses, which
eliminates the potential PCI bus bottleneck to provide improved throughput and overall system
performance when compared to single bus implementations.
The Fire GL 4000 comes standard with 15 MB of 3D-RAM for frame buffer and Z-buffer
memory, 16MB of CDRAM for texture memory, and 1 MB DRAM Frame Buffer memory for the
CIRRUS Logic 5446 VGA controller. The maximum resolutions, colors, and refresh rates are
outlined in the chart below; other resolutions are selectable:
Table 5: Fire GL 4000 double buffered resolutions
Double Buffered
Capabilities
Resolution; Max Colors
1280 x 1024; 16M
1024 x 768; 16M
800 x 600; 16M
640 x 480; 16M
Fire GL 4000 Features
Features of the Fire GL 4000 graphics controller include:
Support for major industry 3D APIs, including
OpenGL –- Open Graphics Library is a software interface to graphics hardware
developed by Silicon Graphics Inc. The Fire GL supports OpenGL 1.0 under
Windows NT 3.51 only and OpenGL 1.1 under Windows NT 4.0 only.
Direct3D – A set of APIs for real-time 3D graphics that are an addition to the Microsoft
DirectX interactive media technologies. They provide a comprehensive 3D solution for
software developers building interactive media programs and games. Fire GL 4000
support for this API under Windows 95 will be provided at a later date.
Heidi – 3D API from Kinetix (an AutoDesk company) that provides an immediate 2D
and 3D mode drawing interface for 3D Studio Max. Support for Windows NT 3.51 and
4.0 are available immediately. Support for Windows 95 will be provided at a later
date.
BigFocus Display list drivers – Provide performance acceleration for AutoCAD R13.
3D-Win – 3D viewer software for AutoCAD R13, Windows NT and OpenGL
On-board VGA support with CIRRUS Logic 5446 VGA chip for full-screen DOS box support
on Windows NT Workstation 3.51 and 4.0.
Hardware accelerated 3D, 24-bit Z-buffering for realistic depth perception and texture
mapping.
Full, 32-bit RGBA double buffering for smooth animation by allowing the next image to be
created in off-screen memory while displaying the current image.
Gouraud shading for smooth surfaces.
Texture mapping for creating realistic images.
Fog for fading effects, atmospheric effects, and depth-queuing.
Anti-aliasing to provide smooth colors and removes jagged lines for high quality, realistic
rendered scenes.
Alpha-blending for creating transparent effects such as an object behind a window.
Bilinear and trilinear mip mapping
2,000,000 Gouraud shaded, textured polygons per second (25 pixel triangles) with lighting,
z-buffering, blending, and fogging enabled.
60 million bilinear MIP-mapped pixels per second.
30 million trilinear textured pixel per second.
Compaq Workstations - Key Technologies
Fire GL 4000
Max Hz
85
100
120
120
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