HP X Class 500/550MHz HP Visualize X-Class 500MHz, 550MHz Technical Reference - Page 73

Graphics Board Architecture, Frame Buffer Memory, bit Window ID

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Interface Boards and Mass-Storage Drivers HP Visualize fx OpenGL 3D Graphics Hardware Accelerator Figure 3-3. Graphics Board Architecture AGP Bus Main Board Bridge Chip 3 X Geometry 2 x Texture Map Control Texture Memory 32 MB SDRAM 2 X Rasterizer Frame Buffer Memory RAMDAC VGA PCI Board Frame Buffer Memory There are 18 MB of frame buffer memory in 100 MHz SGRAM modules installed on the main board of the HP VISUALIZE fx Open GL graphics hardware accelerator. This memory contains image data and depth data, comprised of: • 48-bit image planes (24-bit double-buffered) • 8-bit overlay planes • 24-bit Z-buffer • 4-bit Window ID • 4-bit stencil Chapter 3 73

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Chapter 3
73
Interface Boards and Mass-Storage
Drivers
HP Visualize fx OpenGL 3D Graphics Hardware Accelerator
Figure 3-3.
Graphics Board Architecture
Frame Buffer Memory
There are 18 MB of frame buffer memory in 100 MHz SGRAM modules installed on the
main board of the HP V
ISUALIZE
fx
Open GL graphics hardware accelerator. This memory
contains image data and depth data, comprised of:
•
48-bit image planes (24-bit double-buffered)
•
8-bit overlay planes
•
24-bit Z-buffer
•
4-bit Window ID
•
4-bit stencil
AGP Bus
Bridge Chip
VGA
PCI Board
2 X Raster-
izer
Frame Buffer
Memory
RAMDAC
Texture Memory
32 MB SDRAM
Main
Board
2 x
Texture
Map
Control
3 X Geome-
try