[ODE] Reseting World Params
Martin C. Martin
martin at metahuman.org
Mon Apr 14 16:13:02 2003
Rob Leclerc wrote:
>
> Again, I am setting precision pretty
> high for output and I don't think this is the problem.
How high is "pretty high"? DBL_DIG + 2? More?
If you get desperate, you can try compiling with -ffloat-store (gcc) or
"Improve Floating Point Consistency" (MSVC).
> Any other guesses?
Try printing out values of as many (relevant) variables you can think of
at every step of the simulation: NN inputs, hidden layers, outputs,
positions & velocities of all body parts, applied forces/torques, etc.
Store them all to a file, and use diff to find out where they first
differ. To be doubly sure, you can print out floating point values this
way:
float f;
double d;
...
cout << *(int *)&f << endl;
cout << *(int64 *)&d << endl;
You'll need to define an appropriate 64 bit int type, but both gcc and
MSVC support it.
- Martin