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
|
//-----------------------------------------------------------------------------
// Name: vec4math.h
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
// Copyright 2022 Wolfire Games LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
//-----------------------------------------------------------------------------
#pragma once
#include <Math/vec4.h>
#include <Math/vec3.h>
#include <Math/vec3math.h>
inline vec4 operator+(const vec4& vec, const vec4 & param) {
return vec4(vec.entries[0] + param.entries[0],
vec.entries[1] + param.entries[1],
vec.entries[2] + param.entries[2],
vec.entries[3]);
}
inline vec4 operator-(const vec4& vec, const vec4 & param) {
return vec4(vec.entries[0] - param.entries[0],
vec.entries[1] - param.entries[1],
vec.entries[2] - param.entries[2],
vec.entries[3]);
}
inline vec4 operator*(const vec4& vec, float param) {
return vec4(vec.entries[0] * param,
vec.entries[1] * param,
vec.entries[2] * param,
vec.entries[3]);
}
inline vec4 operator/(const vec4& vec, float param) {
return vec4(vec.entries[0] / param,
vec.entries[1] / param,
vec.entries[2] / param,
vec.entries[3]);
}
inline void operator+=(vec4& vec, const vec4 & param) {
vec.entries[0] += param.entries[0];
vec.entries[1] += param.entries[1];
vec.entries[2] += param.entries[2];
}
inline void operator-=(vec4& vec, const vec4 & param) {
vec.entries[0] -= param.entries[0];
vec.entries[1] -= param.entries[1];
vec.entries[2] -= param.entries[2];
}
inline void operator*=(vec4& vec, float param) {
vec.entries[0] *= param;
vec.entries[1] *= param;
vec.entries[2] *= param;
}
inline void operator*=(vec4& vec, const vec4 & param) {
vec.entries[0] *= param.entries[0];
vec.entries[1] *= param.entries[1];
vec.entries[2] *= param.entries[2];
}
inline void operator/=(vec4& vec, float param) {
vec.entries[0] /= param;
vec.entries[1] /= param;
vec.entries[2] /= param;
}
inline bool operator==(const vec4& vec, const vec4 ¶m) {
return (vec.entries[0] == param.entries[0] &&
vec.entries[1] == param.entries[1] &&
vec.entries[2] == param.entries[2] &&
vec.entries[3] == param.entries[3]);
}
inline bool operator!=(const vec4& vec, const vec4 ¶m) {
return(vec.entries[0] != param.entries[0] ||
vec.entries[1] != param.entries[1] ||
vec.entries[2] != param.entries[2] ||
vec.entries[3] != param.entries[3]);
}
float length(const vec4 &vec);
inline float length_squared(const vec4 &vec) {
return vec[0]*vec[0] + vec[1]*vec[1] + vec[2]*vec[2];
}
inline float dot(const vec4 &vec_a, const vec4 &vec_b) {
return vec_a[0]*vec_b[0] + vec_a[1]*vec_b[1] + vec_a[2]*vec_b[2];
}
inline float distance(const vec4 &vec_a, const vec4 &vec_b) {
return length(vec_a-vec_b);
}
inline float distance_squared(const vec4 &vec_a, const vec4 &vec_b) {
return length_squared(vec_a-vec_b);
}
inline vec4 normalize(const vec4 &vec) {
return vec4(normalize(vec.xyz()),vec[3]);
}
inline vec4 cross(const vec4 &vec_a, const vec4 &vec_b) {
vec4 result;
result[0] = vec_a[1] * vec_b[2] - vec_a[2] * vec_b[1];
result[1] = vec_a[2] * vec_b[0] - vec_a[0] * vec_b[2];
result[2] = vec_a[0] * vec_b[1] - vec_a[1] * vec_b[0];
return result;
}
inline vec4 reflect(const vec4 &vec, const vec4 &normal) {
return vec - normal*(2.0f*dot(vec, normal));
}
inline vec4 operator-(const vec4 &vec) {
return vec * -1.0f;
}
inline vec4 operator*(float param, const vec4 &vec_b) {
return vec_b*param;
}
inline vec4 lerp(vec4 v0, vec4 v1, float t) {
return (1-t)*v0 + t*v1;
}
|
