Changing an object's rotation

[Starfox]

I'm trying to change an object's rotation using the following code, but it doesn't seem to do anything:

void dynamics_box::rotate(const float3 Angles)
{
btTransform Transformation;
motion_state->getWorldTransform(Transformation);
btQuaternion Quat = Transformation.getRotation();
btQuaternion Trans = btQuaternion(Angles.x, Angles.y, Angles.z);
btQuaternion Result = Quat * Trans;
Transformation.setRotation(Result);
motion_state->setWorldTransform(Transformation);
}

Any ideas what I'm doing wrong here?

[marios]

I'm doing this like that:

Code: Select all

void dynamics_box::rotate(const float3 Angles)
{
btTransform Transformation;
motion_state->getWorldTransform(Transformation);

Transformation.getBasis().setEulerYPR(Angles.y,Angles.x, Angles.z);

motion_state->setWorldTransform(Transformation);
}

[Starfox]

Tried that, didn't work. Object remains in its initial state.

[marios]

hmm, so maybe operate directly on body->getWorldTransform() instead motionstate

[Starfox]

Sweet, that worked. Thanks.