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Added btScaledBvhTriangleMeshShape. The btScaledBvhTriangleMeshShape allows to instance multiple differently scaled versions of an existing btBvhTriangleMeshShape.

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All those instances re-use the same btBvhTriangleMeshShape child shape (and its btOptimizedBvh).
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erwin.coumans
2008-09-07 04:59:57 +00:00
parent 103b98de73
commit d836e83ea2
2 changed files with 158 additions and 0 deletions
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src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h Normal file
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/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2008 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.
*/
#ifndef SCALED_BVH_TRIANGLE_MESH_SHAPE_H
#define SCALED_BVH_TRIANGLE_MESH_SHAPE_H
#include "BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h"
///The btScaledBvhTriangleMeshShape allows to instance a scaled version of an existing btBvhTriangleMeshShape.
///Note that each btBvhTriangleMeshShape still can have its own local scaling, independent from this btScaledBvhTriangleMeshShape 'localScaling'
ATTRIBUTE_ALIGNED16(class) btScaledBvhTriangleMeshShape : public btConcaveShape
{
public:
btVector3 m_localScaling;
btBvhTriangleMeshShape* m_bvhTriMeshShape;
btScaledBvhTriangleMeshShape(btBvhTriangleMeshShape* childShape,btVector3 localScaling);
virtual ~btScaledBvhTriangleMeshShape();
virtual int getShapeType() const
{
//use un-used 'FAST_CONCAVE_MESH_PROXYTYPE' for now, later add SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE to btBroadphaseProxy.h
return FAST_CONCAVE_MESH_PROXYTYPE;
}
virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
virtual void setLocalScaling(const btVector3& scaling);
virtual const btVector3& getLocalScaling() const;
virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const;
virtual void processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const;
//debugging
virtual const char* getName()const {return "SCALEDBVHTRIANGLEMESH";}
};
#endif //BVH_TRIANGLE_MESH_SHAPE_H