Txema Vicente wrote: > Why don't I get a constant clock.tick? > It is double 3 times in a second in my PC(win32). > May be due to ECC RAM? > You shouldn't depend on clock.tick to be constant. It's variable so it can keep the fps constant as the workload of your program as well as other programs on your system fluctuate. It's pretty surprising that it's constant at all. that's why you calculate dt, so you know the change. If clock.tick were constant the value wouldn't be necessary, you'd just divide 1000 ms by the FPS limit and you'd get your ms/frame. > #Tick Test Graph > #------------------------------------------ > from pyglet.gl import * > from pyglet import window > import pyglet.clock > > win = window.Window(width=1000,height=200) > clock=pyglet.clock.Clock() > clock.set_fps_limit(60) > x=0 > sy=4000 > while not win.has_exit: > win.dispatch_events() > dt=clock.tick() > glBegin(GL_LINES) > glVertex2f(x,0) > glVertex2f(x,dt*sy) > glEnd() > x+=1 > win.flip() > > > >
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