mgcintrsphrfrustum.cpp

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

#include "MgcDistVec3Frustum.h"
#include "MgcIntrSphrFrustum.h"

//----------------------------------------------------------------------------
bool MgcTestIntersection (const MgcSphere& rkSphere,
    const MgcFrustum& rkFrustum)
{
    MgcReal fSqrDist = MgcSqrDistance(rkSphere.Center(),rkFrustum);
    MgcReal fSqrRadius = rkSphere.Radius()*rkSphere.Radius();
    return fSqrDist <= fSqrRadius;
}
//----------------------------------------------------------------------------