Trouble with ray testing

Post Reply
aFerreira
Posts: 9
Joined: Fri Dec 04, 2015 10:30 pm

Trouble with ray testing

Post by aFerreira »

Hello,

I am trying to implement a player controllable character using a btRigidBody, and im having trouble with using ray testing to determine if the character can/cannot jump. The issue is that the following error appears when trying to perform the rayTest:
"Overflow in AABB, object removed from simulationIf you can reproduce this, please email bugs@continuousphysics.com
Please include above information, your Platform, version of OS.
Thanks."

The function for the ray testing is the following:

Code: Select all

void humanoid::rayCastForJumping (void)
{
        btTransform xform;
    	m_humanoidRigidBody->getMotionState()->getWorldTransform (xform);
    	btVector3 down = -xform.getBasis()[1];
    	down.normalize ();

        btVector3 raySource, rayTarget;

    	raySource = xform.getOrigin();
    	rayTarget = raySource + (down * m_height/2.0 * btScalar(1.1));

        btCollisionWorld::ClosestRayResultCallback ray(raySource, rayTarget);
        m_ownerWorld->rayTest(raySource, rayTarget, ray);

        if (ray.hasHit())
        {
            const btRigidBody* hit = btRigidBody::upcast(ray.m_collisionObject); // find what the ray hit

            if(hit != m_humanoidRigidBody) // If the ray doesn't hit the player itself
            {
                m_rayLambda = ray.m_closestHitFraction;
            }
            else
            {
                std::cout<<"Ray has hit the player collision box, please adjust parameters in humanoid ray cast"<<std::endl;
            }
        }
        else
        {
            m_rayLambda = 1.0;
        }

}
I have isolated the issue to

Code: Select all

m_ownerWorld->rayTest(raySource, rayTarget, ray);
but unfortunately this is the function that performs the actual ray test and its not evident (to me) from the error what is wrong. Also the character uses a capsule for collision detection purposes.

Can you guys help me, or at least point me in the right direction? If you need anything else please ask. Thanks in advance.
Post Reply