B06 Intergraph GLZ Series
Description
This item is from the PC 3D Graphics Accelerators FAQ, by Blair MacIntyre with numerous contributions by others. (v1.2).
B06 Intergraph GLZ Series
The GLZ series accelerates OpenGL[tm] graphics on Intergraph Computer Systems' TDZ workstations. GLZs let you manipulate Gouraud-shaded 3D models by adding realistic effects such as lighting, translucency, and textured surfaces; and performing spectacular flythroughs, walkthroughs, and animations -- all in real time, at high resolutions, and in true color.
By performing shading and geometry operations in dedicated hardware, GLZs ease the load on the TDZ's Pentium[tm] processor(s) and cut down traffic on the PCI bus, which results in dramatic improvements in graphics performance.
The GLZ family supports Intergraph's 17- and 21-inch multi-sync monitors and 21- and 27-inch InterVue monitors at resolutions up to 1,600 x 1,280 pixels. The GLZs support dual screens and are ready for stereoscopic display on any stereo-ready monitor. (LCD shutter glasses and emitter modules are required and are available from Intergraph Computer Systems.)
The GLZ family offers a selection of 34, 24, or 12 megabytes of VRAM. 24 megabytes of VRAM supports resolutions up to 1,600 x 1,280 with 16.8 million colors (true color). 12 megabytes of VRAM suppots true color at a maximum resolution of 1,152 x 854. 34 megabytes of VRAM supports a 32-bit Z buffer, double-buffered true color, and display capabilities such as translucency and overlay at resolutions up to 1,600 x 1,280.
Intergraph Computer Systems offers six different GLZ configurations.
GLZ6
The top of our 3D graphics accelerator line -- offers shading acceleration, geometry acceleration, and texture-processing for fast, real-time rendering of complex and detailed designs.
Product highlights
* 34 MB of high-speed VRAM for 126 bit planes of video memory at all display resolutions, providing:
o 24-bit, double-buffered image planes
o 32-bit Z buffer
o 8-bit, double-buffered
o 8-bit alpha buffer
o Other planes for additional features and further acceleration
* Texture processing fully supported in hardware with 8 megatextels of texture memory (32 MB of DRAM) for full trilinear interpolation of mip-mapped images
* Geometry acceleration to speed up lighting and transforms
* Support for the OpenGL industry-standard graphics library
* Full hardware support for Gouraud and flat shading of 3D triangle meshes
* Anti-aliased vector support to eliminate anomalies of standard raster displays
* Industry-standard PCI bus interface with high-speed DMA engine
* Genlock support for dual screens, eliminating the visual beat frequency effect that can occur when two monitors are placed close together
* Support for Intergraph Computer Systems' 21- and 27-inch InterVue monitors and 17- and 21-inch multi-sync monitors
* Stereo-ready display for 3D viewing, which enhances cartographic applications and design visualization
* Multiple video resolution support for resolutions ranging from 640 x 480 pixels to 1,600 x 1,280 pixels
* Eight hardware color tables, allowing multiple windows to simultaneously display using independent color palettes for instantaneous color refinement in demanding imaging applications (see p.11)
* 10-bit gamma correction using state-of-the-art, 10-bit digital-to-analog converters, enabling user control of gamma values with no loss of color resolution
GLZ5
Our GLZ5 offers the same high-performance shading and geometry acceleration as does GLZ6. With 12 MB of VRAM, GLZ5 supports resolutions up to 1,152 x 864. Two megatexels (8 megabytes of texture memory) provide more than enough texture storage for adding patterns to furniture, waves to water, or trees to parks and forests.
GLZ5's low price may even tempt you to invest in dual screens and LCD shutter glasses for a stereoscopic adventure into virtual reality!
Product highlights (same as the GLZ6, except where noted)
* 12 MB of high-speed VRAM for 92 bit planes of video memory at resolutions up to 1,152 x 864, providing:
o 24-bit, double-buffered image planes
o 24-bit Z buffer
o 1-bit, double-buffered overlay
o Other planes for additional features and further acceleration
* Texture processing fully supported in hardware with 2 megatextels of texture memory (8 MB of DRAM) for full trilinear interpolation of mip-mapped images
* Support for Intergraph Computer Systems' 17- and 21-inch multi-sync monitors
* Multiple video resolution support for resolutions ranging from 640 x 480 pixels to 1,152 x 864
GLZ4 and GLZ3
GLZ4 and GLZ3 support both shading and geometry acceleration. If you need fast, accurate rendering of complex solid models but don't normally require realtime texture processing for photorealism, GLZ4 (24 MB of VRAM) or GLZ3 (12 MB of VRAM) will give you performance that more than meets your expectations. Don't worry if you occasionally need to render a textured image. Thanks to OpenGL, texture processing is fully supported in software.
Product highlights
* 24 MB (GLZ4) of high-speed VRAM for 92 bit planes of video memory at all display resolutions, providing:
o 24-bit, double-buffered image planes
o 24-bit Z buffer
o 1-bit, double-buffered overlay
o Other planes for additional features and further acceleration
* 12 MB (GLZ3) of high-speed VRAM for 92 bit planes of video memory at resolutions up to 1,152 x 864, providing:
o 24-bit, double-buffered image planes
o 24-bit Z buffer
o 1-bit, double-buffered overlay
o Other planes for additional features and further acceleration
* Geometry acceleration to speed up lighting and transforms
* Support for the OpenGL industry-standard graphics library
* Full hardware support for Gouraud and flat shading of 3D triangle meshes
* Anti-aliased vector support
* Industry-standard PCI bus interface with high-speed DMA engine
* Genlock support for dual screens
* Support for the following Intergraph Computer Systems' monitors: 17- and 21-inch multi-sync monitors (GLZ3 and GLZ4) 21- and 27-inch InterVue monitors (GLZ4)
* Stereo-ready display for 3D viewing
* Multiple video resolution support for resolutions ranging from 640 x 480 to 1,600 x 1,280 pixels (GLZ4)
* Multiple video resolution support for resolutions ranging from 640 x 480 to 1,152 x 864 pixels (GLZ3)
* Eight hardware color tables, allowing multiple windows to simultaneously display using independent color palettes
* 10-bit gamma correction
GLZ2 and GLZ1
Product highlights
* 24 MB (GLZ2) of high-speed VRAM for 92 bit planes of video memory at all display resolutions, providing:
o 24-bit, double-buffered image planes
o 24-bit Z buffer
o 1-bit, double-buffered overlay
o Other planes for additional features and further acceleration
* 12 MB (GLZ1) of high-speed VRAM for 92 bit planes of video memory at resolutions up to 1,152 x 864, providing:
o 24-bit, double-buffered image planes
o 24-bit Z buffer
o 1-bit, double-buffered overlay
o Other planes for additional features and further acceleration
* Support for the OpenGL industry-standard graphics library
* Full hardware support for Gouraud and flat shading of 3D triangle meshes
* Anti-aliased vector support
* Industry-standard PCI bus interface with high-speed DMA engine
* Genlock support for dual screens
* Support for the following Intergraph Computer Systems' monitors:
o 17- and 21-inch multi-sync monitors (GLZ1 and GLZ2)
o 21- and 27-inch InterVue monitors (GLZ2)
* Stereo-ready display for 3D viewing
* Multiple video resolution support for resolutions ranging from 640 x 480 to 1,600 x 1,280 pixels (GLZ2)
* Multiple video resolution support for resolutions ranging from 640 x 480 to 1,152 x 864 pixels (GLZ1)
* Eight hardware color tables, allowing multiple windows to simultaneously display using independent color palettes
* 10-bit gamma correction
GLZ1T
This card has the same features as the GLZ1 card, accept that it adds 8 MB of texture memory and supports hardware processing like the GLZ5 and GLZ6.
GLZ configurations at a glance
GLZ Hardware Hardware Hardware Texture Frame Max
model rendering geometry texture DRAM buffer resolution
accel accel processing VRAM (in pixels)GLZ6 Yes Yes Yes 32 MB 34 MB 1,600 x 1,280
(8 megatexels)
GLZ5 Yes Yes Yes 8 MB 12 MB 1,152 x 864
(2 megatexels)
GLZ4 Yes Yes No No 24 MB 1,600 x 1,280
GLZ3 Yes Yes No No 12 MB 1,152 x 864
GLZ2 Yes No No No 24 MB 1,600 x 1,280
GLZ1T Yes No Yes 8 MB 12 MB 1,152 x 864
(2 megatexels)
GLZ1 Yes No No No 12 MB 1,152 x 864
Performance specifications for GLZ2, GLZ4, and GLZ6
The following table summarizes hardware performance for GLZs supporting resolutions up to 1,600 x 1,280 (GLZ2, GLZ4, and GLZ6) on Intergraph Computer Systems' 21- and 27-inch InterVue monitors and 17- and 21-inch multi-sync monitors.
3D graphics performance*
3D requests (with Z buffering) Performance Triangle, 50-pixel, Gouraud shaded 450,000 triangles/second
Triangle, 25-pixel, Gouraud shaded 515,000 triangles/second
Vector, 10-pixel, solid color 1,150,000 vectors/second
Vector, 10-pixel, Gouraud shaded 1,000,000 vectors/second
Vector, 10-pixel, antialiased 550,000 vectors/second
Texturing performance (GLZ6)*
Textured areas, 512 x 512 (trilinear 15 megatexels/second interpolated, mip-mapped)
2D graphics performance*
2D requests Performance Vector, 10-pixel, solid color 1,450,000 vectors/second
Vector, 10-pixel, antialiased 550,000 vectors/second
Blit: screen to screen, 64 Bit 26 megapixels/second
(R,G,B,A,Z)
Fills 400 megapixels/second
Text, 9 x 13 240,000 characters/second
*These performance numbers are the maximum hardware rate. Actual system performance depends on host processor speed and application.
Performance specifications for GLZ1, GLZ1T, GLZ3, and GLZ5
The following table summarizes hardware performance for GLZs supporting resolutions up to 1,152 x 864 on Intergraph Computer Systems' 17- and 21-inch multi-sync monitors.
3D graphics performance*
3D requests (with Z buffering) Performance Triangle, 50-pixel, Gouraud shaded 230,000 triangles/second
Triangle, 25-pixel, Gouraud shaded 425,000 triangles/second
Vector, 10-pixel, solid color 800,000 vectors/second
Vector, 10-pixel, Gouraud shaded 800,000 vectors/second
Vector, 10-pixel, antialiased 285,000 vectors/second
Texturing performance (GLZ1T, GLZ5)*
Textured areas, 512 x 512 (trilinear 15 megatexels/second interpolated, mip-mapped)
2D graphics performance*
2D requests Performance Vector, 10-pixel, solid color 1,150,000 vectors/second
Vector, 10-pixel, antialiased 285,000 vectors/second
Blit: screen to screen, 64 Bit 13 megapixels/second
(R,G,B,A,Z)
Fills 200 megapixels/second
Text, 9 x 13 190,000 characters/second
* These performance numbers are the maximum hardware rate. Actual system performance depends on host processor speed and application.
Display support
GLZ2, GLZ4, and GLZ6 support Intergraph Computer Systems' 21- and 27-inch InterVue monitors and our 17- and 21-inch multi-sync monitors at resolutions up to 1,600 x 1,280 pixels. The following table indicates the currently supported screen resolutions in full 24-bit, true-color, double-buffered mode.
Resolutions Colors Maximum
supported supported refresh
16.8 M rates 1,600 x 1,280 X 76 Hz
1,600 x 1,200 X 81 Hz
1,280 x 1,024 X 94 Hz
1,280 x 960 X 100 Hz
1,152 x 864 X 85 Hz
1,024 x 768 X 122 Hz
800 x 600 X 153 Hz
640 x 480 X 186 Hz
GLZ1, GLZ1T, GLZ3, and GLZ5 support Intergraph Computer Systems' 17- and 21-inch multi-sync monitors at resolutions up to 1,152 x 864. The following table indicates the currently supported screen resolutions in full 24-bit, true-color, double-buffered mode.
Resolutions Colors Maximum
supported supported refresh
6.8 M rates 1,152 x 864 X 72 Hz
1,024 x 768 X 85 Hz
800 x 600 X 85 Hz
640 x 480 X 85 Hz
For more information or the number of a sales representative or Intergraph Computer Center near you, call:
U.S. and Canada : 800-763-0242 Asia-Pacific : 852-2893-3621 Europe : 31-2503-66576 Middle East : 971-4-367555 Other areas : 1-205-730-5441 Or reach us on the Internet at http://www.intergraph.com.
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