|
|
Teilenummer | GLINT-GAMMA |
|
Beschreibung | 3D Geometry and Lighting Processor | |
Hersteller | 3D Labs | |
Logo | ||
Gesamt 24 Seiten GLINT Gamma
A 3D Geometry and Lighting
Processor for the PC
Neil Trevett
Vice President, Marketing
NASDAQ:TDDDF
www.3dlabs .com
Transform Processing
Positioning objects in a scene
x1,y1,z1
3D Polygon
x3,y3,z3
Eye-point
x2,y2,z2
• Input = the vertices of all objects in the scene in a database
• Output = list of visible vertices, correctly positioned
• Transform for eye-point - 4x4 Matrix Multiplications
- Allows positioning with six degrees of freedom
• Lots of floating point operations!
6 Page System Design Using GLINT Gamma
Hardware preprocessing for rasterization silicon
• GLINT Gamma reads and processes polygon command stream
- Outputs command stream for a rasterizer processor e.g. GLINT MX
• 33MHz PCI is not fast enough for host connection
- Full 33MHz PCI bandwidth only supports 1.5 million polygons/sec
- AGP enables the full 3.3 million polygons/sec performance
- Need AGP’s sideband addressing for optimized vertex fetching
• Use 66MHz PCI Connection to rasterizer
- Can guarantee 66MHz on-board operation, and allows multiple devices
PCI or AGP
CCPPUU
All polygons in the
scene. AGP 1X allows
3.3 million polygons/sec
66MHz PCI to
allow multiple
devices
GGLLIINNTT
GGaammmmaa
FFrraammeebbuuffffeerr
GGLLIINNTT
MMXX
Only visible polygons -
after clipping and
culling
Video out
All pixel processing,
e.g. texturing,
shading, Z buffering
performed in
rasterizer silicon
12 Page | ||
Seiten | Gesamt 24 Seiten | |
PDF Download | [ GLINT-GAMMA Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
GLINT-GAMMA | 3D Geometry and Lighting Processor | 3D Labs |
Teilenummer | Beschreibung | Hersteller |
CD40175BC | Hex D-Type Flip-Flop / Quad D-Type Flip-Flop. |
Fairchild Semiconductor |
KTD1146 | EPITAXIAL PLANAR NPN TRANSISTOR. |
KEC |
www.Datenblatt-PDF.com | 2020 | Kontakt | Suche |