i''m using opengl and would like to know how to display frames per second to either the full screen, or the title bar in the window. and also, what is most appropriate for a real time game? frame based or time based animation? a2k

For the output inside the opengl window I think you should use an ortho view and glBindTexture()

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GA

is that a link to some useful fps code or just a free plug? i couldn''t find anything.

a2k

okay, nevermind, answered my own question:
static LARGE_INTEGER timerFrequency;
static LARGE_INTEGER startTime;
static int nFrames = 0;
static int count = 0;

nFrames++;
if (nFrames > 100)
{
//char cOutBuffer[32];
LARGE_INTEGER currentTime;
float fps;
float frequency;
QueryPerformanceFrequency(&timerFrequency);
QueryPerformanceCounter(¤tTime);

fps = (float) nFrames/((float)(currentTime.QuadPart - startTime.QuadPart)/
(float) timerFrequency.QuadPart);

//sprintf(cOutBuffer, "%0.1f frames per second", fps);
//sprintf(cOutBuffer, "%d", nFrames);
//SetWindowText(hWnd, cOutBuffer);
cout << fps << endl;
nFrames=0;
QueryPerformanceCounter(&startTime);
}


a2k



Edited by - a2k on 4/14/00 12:22:59 PM