[ODE] Very Important: ODE and TIMESTEP. How to do it???

Jason Perkins starkos at gmail.com
Sun Aug 6 07:30:35 MST 2006

On 8/6/06, michael kapelko <kornerr at gmail.com> wrote:
> For instance, this one:
> http://www.mindcontrol.org/~hplus/graphics/game_loop.html

IMHO, that is about as clear an explanation as you are going to get;
Jon has all but written the code for you.

I would suggest that you just forget about extrapolation for now and
get a fixed timestep loop working. That looks something like this:

  ode_time = gettime()
  while (true) {
    curr_time = gettime();
    while (ode_time < curr_time) {
      ode_time += ode_timestep;

Get that working first and see how it looks; depending on your needs
it might be perfectly acceptable. If you start noticing temporal
aliasing or lag, then you can start looking for alternatives. Have you
done this already?


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