Nextrek
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
|
package min3d.animation;
import min3d.vos.Number3d;
public class KeyFrame {
private String name;
private float[] vertices;
private float[] normals;
private int[] indices;
public KeyFrame(String name, float[] vertices)
{
this.name = name;
this.vertices = vertices;
}
public KeyFrame(String name, float[] vertices, float[] normals)
{
this(name, vertices);
this.normals = normals;
}
public String getName() {
return name;
}
public float[] getVertices() {
return vertices;
}
public int[] getIndices() {
return indices;
}
public float[] getNormals() {
return normals;
}
public void setIndices(int[] indices) {
this.indices = indices;
float[] compressed = vertices;
vertices = new float[indices.length*3];
int len = indices.length;
int vi = 0;
int ii = 0;
int normalIndex = 0;
for(int i=0; i<len; i++)
{
ii = indices[i] * 3;
vertices[vi++] = compressed[ii];
vertices[vi++] = compressed[ii + 1];
vertices[vi++] = compressed[ii + 2];
}
normals = new float[vertices.length];
int vertLen = vertices.length;
for(int i=0; i<vertLen; i+=9)
{
Number3d normal = calculateFaceNormal(
new Number3d(vertices[i], vertices[i+1], vertices[i+2]),
new Number3d(vertices[i+3], vertices[i+4], vertices[i+5]),
new Number3d(vertices[i+6], vertices[i+7], vertices[i+8])
);
normals[normalIndex++] = normal.x;
normals[normalIndex++] = normal.y;
normals[normalIndex++] = normal.z;
normals[normalIndex++] = normal.x;
normals[normalIndex++] = normal.y;
normals[normalIndex++] = normal.z;
normals[normalIndex++] = normal.x;
normals[normalIndex++] = normal.y;
normals[normalIndex++] = normal.z;
}
}
public Number3d calculateFaceNormal(Number3d v1, Number3d v2, Number3d v3)
{
Number3d vector1 = Number3d.subtract(v2, v1);
Number3d vector2 = Number3d.subtract(v3, v1);
Number3d normal = new Number3d();
normal.x = (vector1.y * vector2.z) - (vector1.z * vector2.y);
normal.y = -((vector2.z * vector1.x) - (vector2.x * vector1.z));
normal.z = (vector1.x * vector2.y) - (vector1.y * vector2.x);
double normFactor = Math.sqrt((normal.x * normal.x) + (normal.y * normal.y) + (normal.z * normal.z));
normal.x /= normFactor;
normal.y /= normFactor;
normal.z /= normFactor;
return normal;
}
public KeyFrame clone()
{
KeyFrame k = new KeyFrame(name, vertices.clone(), normals.clone());
return k;
}
}
|
Revision |
Author |
Commited |
Message |
4
|
FMMortaroli
|
Fri 19 Apr, 2013 16:54:38 +0000 |
|