mgcdistvec3frustum.h

3D Game Engine Design Source Code非常棒

// Magic Software, Inc.
// http://www.magic-software.com
// Copyright (c) 2000, All Rights Reserved
//
// Source code from Magic Software is supplied under the terms of a license
// agreement and may not be copied or disclosed except in accordance with the
// terms of that agreement.  The various license agreements may be found at
// the Magic Software web site.  This file is subject to the license
//
// FREE SOURCE CODE
// http://www.magic-software.com/License/free.pdf

#ifndef MGCDISTVEC3FRUSTUM_H
#define MGCDISTVEC3FRUSTUM_H

#include "MgcFrustum.h"

// The calculations assume that the frustum is a solid, so any point inside
// the frustum has distance zero.


// squared distance measurements

MgcReal MgcSqrDistance (const MgcVector3& rkPoint,
    const MgcFrustum& rkFrustum, MgcVector3* pkClosest = 0);


// distance measurements

MgcReal MgcDistance (const MgcVector3& rkPoint, const MgcFrustum& rkFrustum,
    MgcVector3* pkClosest = 0);

#endif