00001 /* 00002 Copyright (c) 2010, The Barbarian Group 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "Vector.h" 00026 #include "Ray.h" 00027 00028 namespace cinder { 00029 00030 class AxisAlignedBox3f { 00031 public: 00032 AxisAlignedBox3f() {} 00033 AxisAlignedBox3f( const Vec3f &aMin, const Vec3f &aMax ); 00034 00035 bool intersects( const Ray &ray ); 00036 int intersect( const Ray &ray, float intersections[2] ); 00037 00038 Vec3f length() { return mExtents[1] - mExtents[0]; } 00039 const Vec3f& min() const { return mExtents[0]; } 00040 const Vec3f& max() const { return mExtents[1]; } 00041 00042 protected: 00043 Vec3f mExtents[2]; 00044 Vec3f mVerts[8]; 00045 00046 bool calcTriangleIntersection( const Ray &ray, const Vec3f &vert0, const Vec3f &vert1, const Vec3f &vert2, float *result ); 00047 }; 00048 00049 } // namespace cinder