Bug in ogre3d motionstate sample

[theyesfish]

http://www.bulletphysics.com/mediawiki- ... tionStates

Code: Select all

    virtual void setWorldTransform(const btTransform &worldTrans) {
        if(NULL == mVisibleobj) return; // silently return before we set a node
        btQuaternion rot = worldTrans.getRotation();
        mVisibleobj->setOrientation(rot.w(), rot.x(), rot.y(), rot.z());
        btVector3 pos = worldTrans.getOrigin();
        mVisibleobj->setPosition(pos.x(), pos.y(), pos.z());
    }

Before "if(NULL == mVisibleobj) return;" you'll want the line.

mPos1 = worldTrans;

I spent a long time trying to figure out why my kinematic objects weren't working.

[kenshin]

http://www.bulletphysics.com/mediawiki- ... tionStates

Code: Select all

    virtual void setWorldTransform(const btTransform &worldTrans) {
        if(NULL == mVisibleobj) return; // silently return before we set a node
        btQuaternion rot = worldTrans.getRotation();
        mVisibleobj->setOrientation(rot.w(), rot.x(), rot.y(), rot.z());
        btVector3 pos = worldTrans.getOrigin();
        mVisibleobj->setPosition(pos.x(), pos.y(), pos.z());
    }

Before "if(NULL == mVisibleobj) return;" you'll want the line.

mPos1 = worldTrans;

I spent a long time trying to figure out why my kinematic objects weren't working.

the mPos1 only need in first time that getWorldTransform.
I think there is no bug in ogre3d motionstate sample.

[Erwin Coumans]

Before "if(NULL == mVisibleobj) return;" you'll want the line.
mPos1 = worldTrans;
I spent a long time trying to figure out why my kinematic objects weren't working.

Thanks for the report, it is indeed a bug in the wiki documentation.

the mPos1 only need in first time that getWorldTransform.
I think there is no bug in ogre3d motionstate sample.

It is likely a bug. Have you tried kinematic objects? Kinematic objects access the 'getWorldTransform' every frame, to update their linear/angular velocity.
Thanks,
Erwin

[kenshin]

Before "if(NULL == mVisibleobj) return;" you'll want the line.
mPos1 = worldTrans;
I spent a long time trying to figure out why my kinematic objects weren't working.

Thanks for the report, it is indeed a bug in the wiki documentation.

the mPos1 only need in first time that getWorldTransform.
I think there is no bug in ogre3d motionstate sample.

It is likely a bug. Have you tried kinematic objects? Kinematic objects access the 'getWorldTransform' every frame, to update their linear/angular velocity.
Thanks,
Erwin

indeed,I haven't use the Kinematic objects until now.
it is true that a bug in the wiki documentation。
thanks