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
|
/*
* Copyright 2011-2013 Blender Foundation
*
* 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.
*/
#include "node_math.h"
#include "stdcycles.h"
/* OSL asin, acos, and pow functions are safe by default. */
shader node_math(string math_type = "add",
float Value1 = 0.5,
float Value2 = 0.5,
float Value3 = 0.5,
output float Value = 0.0)
{
if (math_type == "add")
Value = Value1 + Value2;
else if (math_type == "subtract")
Value = Value1 - Value2;
else if (math_type == "multiply")
Value = Value1 * Value2;
else if (math_type == "divide")
Value = safe_divide(Value1, Value2);
else if (math_type == "power")
Value = pow(Value1, Value2);
else if (math_type == "logarithm")
Value = safe_log(Value1, Value2);
else if (math_type == "sqrt")
Value = safe_sqrt(Value1);
else if (math_type == "inversesqrt")
Value = inversesqrt(Value1);
else if (math_type == "absolute")
Value = fabs(Value1);
else if (math_type == "radians")
Value = radians(Value1);
else if (math_type == "degrees")
Value = degrees(Value1);
else if (math_type == "minimum")
Value = min(Value1, Value2);
else if (math_type == "maximum")
Value = max(Value1, Value2);
else if (math_type == "less_than")
Value = Value1 < Value2;
else if (math_type == "greater_than")
Value = Value1 > Value2;
else if (math_type == "round")
Value = floor(Value1 + 0.5);
else if (math_type == "floor")
Value = floor(Value1);
else if (math_type == "ceil")
Value = ceil(Value1);
else if (math_type == "fraction")
Value = Value1 - floor(Value1);
else if (math_type == "modulo")
Value = safe_modulo(Value1, Value2);
else if (math_type == "trunc")
Value = trunc(Value1);
else if (math_type == "snap")
Value = floor(safe_divide(Value1, Value2)) * Value2;
else if (math_type == "wrap")
Value = wrap(Value1, Value2, Value3);
else if (math_type == "pingpong")
Value = pingpong(Value1, Value2);
else if (math_type == "sine")
Value = sin(Value1);
else if (math_type == "cosine")
Value = cos(Value1);
else if (math_type == "tangent")
Value = tan(Value1);
else if (math_type == "sinh")
Value = sinh(Value1);
else if (math_type == "cosh")
Value = cosh(Value1);
else if (math_type == "tanh")
Value = tanh(Value1);
else if (math_type == "arcsine")
Value = asin(Value1);
else if (math_type == "arccosine")
Value = acos(Value1);
else if (math_type == "arctangent")
Value = atan(Value1);
else if (math_type == "arctan2")
Value = atan2(Value1, Value2);
else if (math_type == "sign")
Value = sign(Value1);
else if (math_type == "exponent")
Value = exp(Value1);
else if (math_type == "compare")
Value = ((Value1 == Value2) || (abs(Value1 - Value2) <= max(Value3, 1e-5))) ? 1.0 : 0.0;
else if (math_type == "multiply_add")
Value = Value1 * Value2 + Value3;
else if (math_type == "smoothmin")
Value = smoothmin(Value1, Value2, Value3);
else if (math_type == "smoothmax")
Value = -(smoothmin(-Value1, -Value2, Value3));
else
warning("%s", "Unknown math operator!");
}
|
