HP sv6 - Manual (Page 30)

installation and user information
product overview
Chapter 2 30
NOTE Each fraction of the screen is called a “screen rectangle.”
Example: In a configuration with five workstations (one doing 2D
rendering and four doing 3D rendering), each 3D workstation would
output one of the four screen rectangle areas on the display.
You can specify how the screen is dissected. The basic options are
grid, vertical slice, horizontal slice and pane. See the
/opt/graphics/OpenGL/sv/doc/README.setpipes file for more
details.
• Accumulate Mode: Improves Image Quality
Each pipe generates the complete screen, “jittered” by sub-pixel
values. These jittered images are averaged together to achieve a
better quality image. This mode is sometimes referred to as the
anti-aliasing mode. The more workstations you add, the more
samples can be taken, and the better the resulting image quality.
Figure 2-7 Accumulate Mode
• Mixed Mode: Combination of both Accelerate and Accumulate
Modes
Each screen rectangle is generated (jittered and averaged) by the
number of samples designated. There is improved image quality
(anti-aliasing), and also improved performance (acceleration) since
each area is generated by multiple workstations.