HP P Class 450/500/550/600/650/700/750 fx2+, fx4+, fx6+ graphics installation - Page 29

HP Visualize fx2+, fx4+, fx6+ Graphics Cards and Texture Module Installing the HP Visualize fx+ Graphics Card NOTE Table 1-2 Settings preceded with the "*" character, cannot be deleted by anyone, including the system administrator. Setting Group Box Option Description No Tearing Fast Buffer Swaps Multi Buffer GDI Quad Strips to Tri Strips "No Tearing" prevents the tearing effect seen when rendering in the middle of a vertical refresh. The tearing effect is a discontinuity in the image appearing as a horizontal line, which is different from frame to frame. Enabling this option is similar to turning off "sync to vertical retrace" or "wait for v blank" with other graphics cards. When this option is enabled, performance may be reduced because rendering waits for a vertical refresh to finish. This is especially true for large windows. "Fast Buffer Swaps" take advantage of HP's multi-buffer hardware. The hardware has a physical front and back buffer that can be swapped very quickly. For compatibility with some applications, this option can be turned off, and the back buffer copied to the front buffer instead. This option causes GDI (NT Graphics Device Interface) to draw to both the physical front and back buffers. This is useful for applications which use GDI to draw in an OpenGL window. This option must be disabled for 2D benchmarking purposes. Applications that fail to conform to the OpenGL standard, by creating non-planar quad strips, may render incorrectly with this driver. This option causes quad strips to be converted to triangle strips, so that the geometry will render correctly. Chapter 1 29