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[Jerome Duriez <jerome.duriez@xxxxxxxxxxxxxxx>]

(sorry for first etc...)

chiara modenese a écrit :
> // Apply gravity gradually
> Vector3r gmax=Vector3r(0,-9810,0);
> Vector3r deltag=Vector3r(0,0,0);
> deltag=gmax/100; // apply the gravity in 100 steps
>  if (fabs(g[1])<fabs(gmax[1]))
>         {
>             g=g+deltag;
>         } else {               Omega::instance().stopSimulationLoop();
>         }
Where are these lines ? In TriaxialCompressionEngine.cpp ?
And those :
> gravityCondition->gravity = triaxialcompressionEngine->g; // set 
> gravity to the value in triaxialcompressionEngine
> rootBody->engines.push_back(gravityCondition);
In TriaxialTest.cpp (function generate) ?

If yes it's normal that it does not work at all... Because here you 
define (see what's going on with "generate" of the TriaxialTest) a 
simulation taking into account gravity, but with a value of g equals to 
(vector) zero...

What you wrote in TriaxialCompressionEngine (=first lines I quoted) can 
not modify the value of gravity applied by the GravityEngine (it even 
does not access to this Engine), which remains thus equal to 0...

Jerome