what is buffer flippimg mode and vertical sync mean on A NVIDIA gforce4 ti4200

[chrono25]

What is buffer flipping mode and vertical sync??
what does it do or its purpose??

[irdreed]

chrono25

They're used for your Ge Force "Open GL" Settings.

buffer flipping mode
This option determines the buffer flipping mode for full-screen OpenGL applications.

You can select from the block transfer method, the page flip method or auto-select. Auto-select allows the driver to determine the best method based on your hardware configuration.

Vertical Sync:
This option lets you specify how vertical sync is handled in OpenGL.

Always off will always disable vertical sync in all OpenGL applications.

Off by default will keep vertical sync disabled, unless an application specifically requests that it be enabled.

On by default will keep vertical sync enabled, unless an application specifically requests that it be disabled.

Visit their site for more info under FAQ heading.
http://www.nvidia.com/

Hope this helps.

[ski]

Buffer Flipping Mode-
Enabling 'block transfer' helps to eliminate visible draws which can make an application look sluggish or appear to flicker.
Enabling 'page-flipping'(if available) also eliminates 'tearing', a splitting effect that occurs when drawing to the screen happens faster than the monitor's refresh rate.

Vertical Sync-
When drawing scenes on the monitor, the video card may render more frames per second than the monitor's refresh rate resulting in 'tearing'(see above).
Enabling vertical sync will adjust the frame rate to equal the monitor's refresh rate.