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Added better support for btUniformScalingShape, by moving some data that is not shared from btConvexShape to btConvexInternalShape. This reduces the sizeof btUniformScalingShape to 16 bytes (from 64).

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This is good when having lots of re-used shapes with different sizes.

Convex shapes will need to derive from btConvexInternalShape (which is a subclass of btConvexShape). We could have renamed btConvexShape to 'btConvexShapeInterface' (can still do that later)
This commit is contained in:
ejcoumans
2007-07-28 21:10:21 +00:00
parent 177b6f5ce2
commit 38b7f474c3
14 changed files with 294 additions and 146 deletions
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22
src/BulletCollision/CollisionShapes/btUniformScalingShape.h
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@@ -33,6 +33,8 @@ class btUniformScalingShape : public btConvexShape
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec)const;
virtual btVector3 localGetSupportingVertex(const btVector3& vec)const;
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
virtual void calculateLocalInertia(btScalar mass,btVector3& inertia);
@@ -58,7 +60,27 @@ class btUniformScalingShape : public btConvexShape
}
virtual int getShapeType() const { return UNIFORM_SCALING_SHAPE_PROXYTYPE; }
///////////////////////////
///getAabb's default implementation is brute force, expected derived classes to implement a fast dedicated version
void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
virtual void getAabbSlow(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
virtual void setLocalScaling(const btVector3& scaling) ;
virtual const btVector3& getLocalScaling() const ;
virtual void setMargin(btScalar margin);
virtual btScalar getMargin() const;
virtual int getNumPreferredPenetrationDirections() const;
virtual void getPreferredPenetrationDirection(int index, btVector3& penetrationVector) const;
};
#endif //BT_UNIFORM_SCALING_SHAPE_H