UNTITLED
LOCAL UNTITLED
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)
Epoch
