Frame Counter

[Vlasko]

I've made a simple frame counter but it's only showing 1FPS and i'm absolutely sure I'va got more than that:-)
Code:
.....
drawing
.....
framecount++;
time+=glutGet(GLUT_ELAPSED_TIME);glutSwapBuffers() ;
if(time>=1000)
{
itoa(framecount,number,10);
strcpy(fps,number);
strcat(fps," FPS");
glutSetWindowTitle(fps);
framecount=0;
time=0;
}

[mikael_aronsson]

Hi !

Hmmm, as you set framecount=0 at the end of the drawing code (if elapsed time >= 1000 ? is this ms or what ?)

Mikael


[This message has been edited by mikael_aronsson (edited 06-04-2003).]

[This message has been edited by mikael_aronsson (edited 06-04-2003).]

[Claude]

GLUT ELAPSED TIME Number of milliseconds since glutInit called (or first call to
glutGet(GLUT ELAPSED TIME)).

Time is soon always over 1000.

So you get 1 fps all the time.

Hope it helps.

Claude

[Vlasko]

but i do swap buffer more than once per second(1000 miliseconds)and when i do first glutGet(GLUT_ELAPSED_TIME)and next
glutGet(GLUT_ELAPSED_TIME) should give the difference between these two calls? how should it be done correctly ?

[Claude]

It says:
since FIRST call to glutGet.
So at the 1000th call,you get:
time of the 1000th call - time of first call .

This is basically the time since you started
your program.

Do you see why it doesn't work?

Go to http://www.gametutorials.com/
they have a fps tutorial.

Bye

Claude