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OnkyDong

Member Since 19 Oct 2012
Offline Last Active Oct 21 2012 07:58 AM

Topics I've Started

ogrekit applyTorque orientation problem

19 October 2012 - 11:39 AM

Hi,

I am trying to rotate a 3d object in ogrekit by applying applyTorque(). This works fine when the object orientation is not changed. But for example if i rotate my object 90 degrees to the left, only the object itself seems to rotate, the orientation of the object seems to stay the same. This causes the following problem:

If i use applyTorque() while the object is still in it's begin orientation(with up Arrow keyboard button):

http://i.imgur.com/e5f24.png

If i use applyTorque() while the object is rotated 90 degrees clockwise(with up Arrow keyboard button):

http://i.imgur.com/G0CR9.png

I tried to use quaternions to change the orientation, but this doesn't seem to do anything. What am i doing wrong?


Code:

gkVector3 speedd, torque;

gkQuaternion orientation;
orientation = blockObj->getOrientation();//blockObj is the object i'm trying to rotate.

gkVector3 newX;


if(Buttonpress)){
  newX = orientation * gkVector3::UNIT_X;
  torque -= newX;


}

blockObj->applyTorque(gkVector3(torque.y, torque.x, torque.z));

torque=0;



I hope my explanation/question is understandable. It's hard to explain.

thanks.

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