[ODE] ODE - Constant speed in different qualities boxes

[akio]

Michael,

What is your frame rate?  I'm curious as to how often the the Step() routine
is called.  I'm not using FastStep() but the Step() function, but I think
the behavior would be similar.  I found that using a constant parameter
value for an elapsed time actually worked the best in my test cases.

Specifically, a value of 0.05 as an elapsed time worked sufficiently as long
as my frame rate doesn't drop 20 fps (that's 1/0.05) everything runs
smoothly.  Also, I don't use iterative calls to the Step() function in my
test application.  Instead, it's called once as any other functions in my
game engine.  Making changes to your loop (or removal of) may work little
better.



> --- BEGIN CODE ---
#define ODE_STEP_SIZE (0.05)

> collideWorld();
> StepFast(ODE_STEP_SIZE);
> updateWorldPositions();
> renderWorld();
> --- END CODE ---
>


>
> I tried this, both with clearing all the collision contacts after the
> first small ODE update and without. In both cases the result was
> terrible. My simulation jumped around and was in general much more
> unstable than it was before :(
>
> mucki
>
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