.Dt GLUTSWAPBUFFERS 3 LOCAL

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NAME glutSwapBuffers —Swaps the buffers for the current window.

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LIBRARYOpenGLUT - window

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SYNOPSIS #include <openglut.h>
void glutSwapBuffers(void);

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DESCRIPTIONThis function signals to OpenGLUT that you are done drawing to the . Bf
 current window . Ef
  for now. If your window is double-buffered (. Bf
 GLUT_DOUBLE . Ef
 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 . Bf
 stderr . Ef
 if indicated by the . Bf
 GLUT_FPS . Ef
 environment variable. The computed 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.

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CAVEATSThis function has no effect if your window is . Bf
 GLUT_SINGLE . Ef
 . Frame rate is only calculated for double-buffered windows.

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TODOHow does this interact with overlays? Consider making . Bf
 GLUT_FPS . Ef
 keep per-window stats in a multi-window program.

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SEE ALSOglutPostRedisplay(3) glutPostOverlayRedisplay(3) glutPostWindowRedisplay(3) glutPostWindowOverlayRedisplay(3) glutInitDisplaymode 3 fl.sp 3 0

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Johanes Gumabo

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