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
|
/*
* Copyright 2011-2014 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.
*/
CCL_NAMESPACE_BEGIN
ccl_device float average_fac(float3 v)
{
return (fabsf(v.x) + fabsf(v.y) + fabsf(v.z))/3.0f;
}
ccl_device void svm_vector_math(float *Fac, float3 *Vector, NodeVectorMath type, float3 Vector1, float3 Vector2)
{
if(type == NODE_VECTOR_MATH_ADD) {
*Vector = Vector1 + Vector2;
*Fac = average_fac(*Vector);
}
else if(type == NODE_VECTOR_MATH_SUBTRACT) {
*Vector = Vector1 - Vector2;
*Fac = average_fac(*Vector);
}
else if(type == NODE_VECTOR_MATH_AVERAGE) {
*Fac = len(Vector1 + Vector2);
*Vector = normalize(Vector1 + Vector2);
}
else if(type == NODE_VECTOR_MATH_DOT_PRODUCT) {
*Fac = dot(Vector1, Vector2);
*Vector = make_float3(0.0f, 0.0f, 0.0f);
}
else if(type == NODE_VECTOR_MATH_CROSS_PRODUCT) {
float3 c = cross(Vector1, Vector2);
*Fac = len(c);
*Vector = normalize(c);
}
else if(type == NODE_VECTOR_MATH_NORMALIZE) {
*Fac = len(Vector1);
*Vector = normalize(Vector1);
}
else {
*Fac = 0.0f;
*Vector = make_float3(0.0f, 0.0f, 0.0f);
}
}
ccl_device float svm_math(NodeMath type, float Fac1, float Fac2)
{
float Fac;
if(type == NODE_MATH_ADD)
Fac = Fac1 + Fac2;
else if(type == NODE_MATH_SUBTRACT)
Fac = Fac1 - Fac2;
else if(type == NODE_MATH_MULTIPLY)
Fac = Fac1*Fac2;
else if(type == NODE_MATH_DIVIDE)
Fac = safe_divide(Fac1, Fac2);
else if(type == NODE_MATH_SINE)
Fac = sinf(Fac1);
else if(type == NODE_MATH_COSINE)
Fac = cosf(Fac1);
else if(type == NODE_MATH_TANGENT)
Fac = tanf(Fac1);
else if(type == NODE_MATH_ARCSINE)
Fac = safe_asinf(Fac1);
else if(type == NODE_MATH_ARCCOSINE)
Fac = safe_acosf(Fac1);
else if(type == NODE_MATH_ARCTANGENT)
Fac = atanf(Fac1);
else if(type == NODE_MATH_POWER)
Fac = safe_powf(Fac1, Fac2);
else if(type == NODE_MATH_LOGARITHM)
Fac = safe_logf(Fac1, Fac2);
else if(type == NODE_MATH_MINIMUM)
Fac = fminf(Fac1, Fac2);
else if(type == NODE_MATH_MAXIMUM)
Fac = fmaxf(Fac1, Fac2);
else if(type == NODE_MATH_ROUND)
Fac = floorf(Fac1 + 0.5f);
else if(type == NODE_MATH_LESS_THAN)
Fac = Fac1 < Fac2;
else if(type == NODE_MATH_GREATER_THAN)
Fac = Fac1 > Fac2;
else if(type == NODE_MATH_MODULO)
Fac = safe_modulo(Fac1, Fac2);
else if(type == NODE_MATH_ABSOLUTE)
Fac = fabsf(Fac1);
else if(type == NODE_MATH_CLAMP)
Fac = clamp(Fac1, 0.0f, 1.0f);
else
Fac = 0.0f;
return Fac;
}
CCL_NAMESPACE_END
|