00001 /******************************************************************************* 00002 Copyright (c) 2005-2009 David Williams 00003 00004 This software is provided 'as-is', without any express or implied 00005 warranty. In no event will the authors be held liable for any damages 00006 arising from the use of this software. 00007 00008 Permission is granted to anyone to use this software for any purpose, 00009 including commercial applications, and to alter it and redistribute it 00010 freely, subject to the following restrictions: 00011 00012 1. The origin of this software must not be misrepresented; you must not 00013 claim that you wrote the original software. If you use this software 00014 in a product, an acknowledgment in the product documentation would be 00015 appreciated but is not required. 00016 00017 2. Altered source versions must be plainly marked as such, and must not be 00018 misrepresented as being the original software. 00019 00020 3. This notice may not be removed or altered from any source 00021 distribution. 00022 *******************************************************************************/ 00023 00024 #ifndef __PolyVox_Raycast_H__ 00025 #define __PolyVox_Raycast_H__ 00026 00027 #include "PolyVoxCore/Vector.h" 00028 00029 namespace PolyVox 00030 { 00038 struct RaycastResult 00039 { 00041 bool foundIntersection; 00043 Vector3DInt32 intersectionVoxel; 00044 Vector3DInt32 previousVoxel; 00045 }; 00046 00086 template< template<typename> class VolumeType, typename VoxelType> 00087 class Raycast 00088 { 00089 public: 00091 Raycast(VolumeType<VoxelType>* volData, const Vector3DFloat& v3dStart, const Vector3DFloat& v3dDirection, RaycastResult& result); 00092 00094 void setStart(const Vector3DFloat& v3dStart); 00096 void setDirection(const Vector3DFloat& v3dDirection); 00097 00099 void execute(); 00100 00101 private: 00102 RaycastResult& m_result; 00103 00104 void doRaycast(float x1, float y1, float z1, float x2, float y2, float z2); 00105 00106 VolumeType<VoxelType>* m_volData; 00107 typename VolumeType<VoxelType>::Sampler m_sampVolume; 00108 00109 Vector3DFloat m_v3dStart; 00110 Vector3DFloat m_v3dDirection; 00111 float m_fMaxDistance; 00112 }; 00113 } 00114 00115 #include "PolyVoxCore/Raycast.inl" 00116 00117 #endif //__PolyVox_Raycast_H__
1.7.1