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NvBlastMath.h
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27
28
29 #ifndef NVBLASTMATH_H
30 #define NVBLASTMATH_H
31
32 #include <math.h>
33
34 namespace Nv
35 {
36 namespace Blast
37 {
38
39 namespace VecMath
40 {
41
42
43 NV_INLINE void div(float a[3], float divisor)
44 {
45 for (int i = 0; i < 3; i++)
46 a[i] /= divisor;
47 }
48
49 NV_INLINE void mul(float a[3], float multiplier)
50 {
51 for (int i = 0; i < 3; i++)
52 a[i] *= multiplier;
53 }
54
55 NV_INLINE void add(const float a[3], float b[3])
56 {
57 for (int i = 0; i < 3; i++)
58 b[i] = a[i] + b[i];
59 }
60
61 NV_INLINE void add(const float a[3], const float b[3], float r[3])
62 {
63 for (int i = 0; i < 3; i++)
64 r[i] = a[i] + b[i];
65 }
66
67 NV_INLINE void sub(const float a[3], const float b[3], float r[3])
68 {
69 for (int i = 0; i < 3; i++)
70 r[i] = a[i] - b[i];
71 }
72
73 NV_INLINE float dot(const float a[3], const float b[3])
74 {
75 float r = 0;
76 for (int i = 0; i < 3; i++)
77 r += a[i] * b[i];
78 return r;
79 }
80
81 NV_INLINE float length(const float a[3])
82 {
83 return sqrtf(dot(a, a));
84 }
85
86 NV_INLINE float dist(const float a[3], const float b[3])
87 {
88 float v[3];
89 sub(a, b, v);
90 return length(v);
91 }
92
93 NV_INLINE float normal(const float a[3], float r[3])
94 {
95 float d = length(a);
96 for (int i = 0; i < 3; i++)
97 r[i] = a[i] / d;
98
99 return d;
100 }
101
102
103 } // namespace VecMath
104
105 } // namespace Blast
106 } // namespace Nv
107
108
109 #endif // #ifndef NVBLASTMATH_H
Nv::Blast::VecMath::add
NV_INLINE void add(const float a[3], float b[3])
Definition: NvBlastMath.h:55
Nv::Blast::VecMath::dist
NV_INLINE float dist(const float a[3], const float b[3])
Definition: NvBlastMath.h:86
Nv::Blast::VecMath::normal
NV_INLINE float normal(const float a[3], float r[3])
Definition: NvBlastMath.h:93
Nv::Blast::VecMath::sub
NV_INLINE void sub(const float a[3], const float b[3], float r[3])
Definition: NvBlastMath.h:67
Nv::Blast::VecMath::div
NV_INLINE void div(float a[3], float divisor)
Definition: NvBlastMath.h:43
NV_INLINE
#define NV_INLINE
Definition: NvPreprocessor.h:350
Nv::Blast::VecMath::dot
NV_INLINE float dot(const float a[3], const float b[3])
Definition: NvBlastMath.h:73
Nv::Blast::VecMath::mul
NV_INLINE void mul(float a[3], float multiplier)
Definition: NvBlastMath.h:49
Nv::Blast::VecMath::length
NV_INLINE float length(const float a[3])
Definition: NvBlastMath.h:81
Nv
Definition: NvBlastArray.h:37