1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2014 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef NV_NVFOUNDATION_NVPLANE_H
#define NV_NVFOUNDATION_NVPLANE_H
/** \addtogroup foundation
@{
*/
#include "NvMath.h"
#include "NvVec3.h"
#if !NV_DOXYGEN
namespace nvidia
{
#endif
/**
\brief Representation of a plane.
Plane equation used: n.dot(v) + d = 0
*/
class NvPlane
{
public:
/**
\brief Constructor
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE NvPlane()
{
}
/**
\brief Constructor from a normal and a distance
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE NvPlane(float nx, float ny, float nz, float distance) : n(nx, ny, nz), d(distance)
{
}
/**
\brief Constructor from a normal and a distance
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE NvPlane(const NvVec3& normal, float distance) : n(normal), d(distance)
{
}
/**
\brief Constructor from a point on the plane and a normal
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE NvPlane(const NvVec3& point, const NvVec3& normal)
: n(normal), d(-point.dot(n)) // p satisfies normal.dot(p) + d = 0
{
}
/**
\brief Constructor from three points
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE NvPlane(const NvVec3& p0, const NvVec3& p1, const NvVec3& p2)
{
n = (p1 - p0).cross(p2 - p0).getNormalized();
d = -p0.dot(n);
}
/**
\brief returns true if the two planes are exactly equal
*/
NV_CUDA_CALLABLE NV_INLINE bool operator==(const NvPlane& p) const
{
return n == p.n && d == p.d;
}
NV_CUDA_CALLABLE NV_FORCE_INLINE float distance(const NvVec3& p) const
{
return p.dot(n) + d;
}
NV_CUDA_CALLABLE NV_FORCE_INLINE bool contains(const NvVec3& p) const
{
return NvAbs(distance(p)) < (1.0e-7f);
}
/**
\brief projects p into the plane
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE NvVec3 project(const NvVec3& p) const
{
return p - n * distance(p);
}
/**
\brief find an arbitrary point in the plane
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE NvVec3 pointInPlane() const
{
return -n * d;
}
/**
\brief equivalent plane with unit normal
*/
NV_CUDA_CALLABLE NV_FORCE_INLINE void normalize()
{
float denom = 1.0f / n.magnitude();
n *= denom;
d *= denom;
}
NvVec3 n; //!< The normal to the plane
float d; //!< The distance from the origin
};
#if !NV_DOXYGEN
} // namespace nvidia
#endif
/** @} */
#endif // #ifndef NV_NVFOUNDATION_NVPLANE_H
|