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Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/

This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose, 
including commercial applications, and to alter it and redistribute it freely, 
subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.


#include "BulletCollision/CollisionShapes/btTriangleCallback.h"
#include "LinearMath/btTransform.h"
struct btBroadphaseProxy;
class btConvexShape;

class  btTriangleRaycastCallback: public btTriangleCallback

      btVector3 m_from;
      btVector3 m_to;

      btScalar    m_hitFraction;

      btTriangleRaycastCallback(const btVector3& from,const btVector3& to);
      virtual void processTriangle(btVector3* triangle, int partId, int triangleIndex);

      virtual btScalar reportHit(const btVector3& hitNormalLocal, btScalar hitFraction, int partId, int triangleIndex ) = 0;

class btTriangleConvexcastCallback : public btTriangleCallback
      const btConvexShape* m_convexShape;
      btTransform m_convexShapeFrom;
      btTransform m_convexShapeTo;
      btTransform m_triangleToWorld;
      btScalar m_hitFraction;
    btScalar m_triangleCollisionMargin;

      btTriangleConvexcastCallback (const btConvexShape* convexShape, const btTransform& convexShapeFrom, const btTransform& convexShapeTo, const btTransform& triangleToWorld, const btScalar triangleCollisionMargin);

      virtual void processTriangle (btVector3* triangle, int partId, int triangleIndex);

      virtual btScalar reportHit (const btVector3& hitNormalLocal, const btVector3& hitPointLocal, btScalar hitFraction, int partId, int triangleIndex) = 0;


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