[ODE] Yup! I have that problem exactly - saving virtual creatures

[David Whittaker]

How big of a difference are we talking here?  Invisible rounding error
type stuff or errors big enough to notice visually?  I'll take a look at
his code after I get my stepfast stuff integrated into the CVS and the
documentation written, hopefully tomorrow.

Try destroying and creating a brand new world, new ground plane,
everything, each time you reset the simulation.  Maybe that will help.

David

> I got same problems about save-load virtual creatures.
>
> In my system, follows karl's approach, the genotype is converted into
> phenotype, then physical structure is built by parsing the grown
> phenotype digraph.
>
> I saved the genotype information in the file, but when I loaded and
> simulated again, the fitness was slightly different.
>
> Unfortunately, even when I run the simulation twice with same digraph
> structure(not in file, in memory), the two result is also different!
>
> What's wrong with ODE?
>
>
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