Jaton 3DForceXabre400-64Q, Руководство пользователя

Страница: 42 / 50

42
allows the graphic card to determine whether a pixel is visible
or not. Generally a dedicated z-buffer increases frame rates but
since it requires memory it is more expensive. AGP should help
solve this problem since AGP will allow the 2D/3D card to
access main memory for the Z-buffer.
Z-Sorting
An alternate algorithm for hiding objects behind other objects
is called Z-sorting. The Z-sorting algorithm simply displays all
objects serially, starting with those objects furthers back (with
the largest Z-axis values). The Z-sorting algorithm does not
require a z-buffer, but it is slow and does not render
intersecting objects correctly.
Pinout and Sync Frequencies
Analog Color Display Pinouts (DB 15)
PIN FUNCTION
1
Red Video1
2
Green Video1
3
Blue Video1
4 Not Used
5 Ground
6 Red Return (ground)
7 Green Return (ground)
8 Blue Return (ground)
9 Vcc (+5v DDC Power)
10 Sync Return (ground)
11 Monitor ID (not used)
12 SDA (DDC support)
13 Horizontal Sync
14 Vertical Sync