User's Manual
User Guide for Chrome 500 Series Graphics
SG195-A.1 10/20/2008
Page 111
be set for the selected feature. Click on your choice to
change a value. Your new value will appear in the
Setting column, but will not become the active value
until you click Apply and re-launch your Direct3D
application.
Features -
Standard
These Standard Features and associated settings are
available for adjustment.
Wait for monitor
sync
Sometimes called Wait for Vsync, this feature option
controls whether or not buffer swaps and other activities
should be synchronized to the display’s Vertical
Synchronization or Vertical Retrace Signal and blanking
period, during which the display blanks as it retraces its
way from the bottom right to the upper left corner of the
screen.
Setting options include:
By App (default) – Select By App if you want the
Wait for monitor sync
setting to change on
application requests. If Vsync OFF is requested, the
back buffer is flipped without waiting for vertical
retrace. If the application requests VSync ON, then
the back buffer is flipped while in vertical retrace.
ON – Select ON to always force a wait for monitor
sync. This option will reduce “tearing” artifacts.
Synchronizing with the vertical retrace constrains the
frame rate so that it does not exceed the refresh
rate.
OFF – Select OFF to allow buffer swaps to be
processed without waiting for vertical
synchronization. When a buffer flip occurs at a
different time than during the vertical blanking period,
visual artifacts, often described as “tearing” or
“shearing” may be apparent. Note that while visual
artifacts will probably occur with this setting, the
frame rate may increase.
Anti-aliasing
Anti-aliasing is a technique to reduce jagged edges
(“jaggies”) of polygons and lines. Pixels on either side of
edges are sampled and then rendered as a blend of the
adjoining colors to smooth the appearance of the edge.
When anti-aliasing is enabled, images are less likely to
display “staircase” edges and broken lines. Sampling
results can be downscaled to the original size, producing
sub-samples of high quality.
Setting options include:
By App (default) – Select By App to allow the