GPGPU Programming for Games and Science

GPU Computing 203

while ( application has idle time)

{

clear

color and depth stencil buffers ;

issue

drawing commands ;

swapChain−>Present ( syncInterval , flags ); // Swap buffers .

}

The Present call is for D3D11.0. When the syncInterval is set to zero, the

buffers are presented to the display immediately without synchronization to

vertical blanking. A value of 1, 2, 3, or 4 allows you to wait for vertical blanking

the specified number of times. For example, if you have a 60 Hz monitor—

and assuming you can draw your scene at 60 Hz, a

syncInterval value of 1 will

present the back buffer at 60 Hz. If the drawing takes less than 1/60 of a

second, the

Present