Sun Microsystems XVR-1200, Installation And User Manual

Page: 57 / 90

Chapter 5 Using Sun XVR-1200 Graphics Accelerator Features 37
Dynamic Multisample Antialiasing
Multisampling (full-scene dynamic multisample antialiasing) removes the jagged
edges on 3D data. An image is sampled at a higher resolution than the screen,
typically four to 16 samples per pixel. This method yields improved images, but at
the price of possibly increased render time.
The Sun XVR-1200 graphics accelerator has 128 Mbytes of memory for the frame
buffer so that the image can be multisampled at up to 16 samples per pixel in a
single pass, depending on the resolution. The higher number of samples per pixel,
the better the image quality but the longer the rendering time (and the more
memory is consumed). Depending on the screen resolution (
TABLE 1-1
on page 5), the
number of samples per pixel, or sample density , can be increased to improve image
quality.
To invoke multisampling, use the
fbconfig
command
-multisample
and
-samples
options. You can enable multisample mode for all Sun OpenGL for
Solaris applications.
fbconfig
controls frame buffer memory consumption (at the time the X window
system starts).
Enabling Multisampling for All Sun OpenGL for
Solaris Applications
●
Use
fbconfig
to enable all Sun OpenGL for Solaris application windows for
multisampling.
This enables multisampling for all Sun OpenGL for Solaris applications.
host% fbconfig -dev jfb0 -multisample forceon