centos man page for glutswapbuffers

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NAME
     glutSwapBuffers -- Swaps the buffers for the current window.

LIBRARY
     OpenGLUT - window

SYNOPSIS
     #include <openglut.h>

     void
     glutSwapBuffers(void);

DESCRIPTION
     This function signals to OpenGLUT that you are done drawing to the  current window   for now.  If your window is double-buffered (  GLUT_DOU-
     BLE  param to glutInitDisplayMode()), then OpenGLUT will swap the front buffer with the back buffer.

     This also computes your current frame-rate and prints the result on  stderr  if indicated by the  GLUT_FPS  environment variable.	The com-
     puted value is not necessarily the total frame rate, if you have multiple windows, as the statistic is the total number of buffer-swaps for
     the entire program.

CAVEATS
     This function has no effect if your window is  GLUT_SINGLE  .

     Frame rate is only calculated for double-buffered windows.

TODO
     How does this interact with overlays?

     Consider making  GLUT_FPS	keep per-window stats in a multi-window program.

SEE ALSO
     glutPostRedisplay(3) glutPostOverlayRedisplay(3) glutPostWindowRedisplay(3) glutPostWindowOverlayRedisplay(3) glutInitDisplaymode(3)

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