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
145
146
147
148
149
150
151
152
153
154
155
156
|
using System;
using UnityEngine;
namespace Rigging.Debugging
{
public class DebugRigidBody : MonoBehaviour
{
public enum EMode
{
Axis,
Cube,
Axis_Cube,
Custom,
}
public EMode mode = EMode.Axis;
public Color color = Color.white;
// When added to an object, draws colored rays from the
// transform position.
public int lineCount = 100;
public float radius = 3.0f;
public float cubeLen = 0.05f;
public System.Action customDraw;
static Material lineMaterial;
static void CreateLineMaterial()
{
if (!lineMaterial)
{
// Unity has a built-in shader that is useful for drawing
// simple colored things.
Shader shader = Shader.Find("Hidden/Internal-Colored");
lineMaterial = new Material(shader);
lineMaterial.hideFlags = HideFlags.HideAndDontSave;
// Turn on alpha blending
lineMaterial.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
lineMaterial.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
// Turn backface culling off
lineMaterial.SetInt("_Cull", (int)UnityEngine.Rendering.CullMode.Off);
// Turn off depth writes
lineMaterial.SetInt("_ZWrite", 0);
}
}
private void PutVertex(Vector3 vert)
{
GL.Vertex3(vert.x, vert.y, vert.z);
}
// Will be called after all regular rendering is done
public void OnRenderObject()
{
CreateLineMaterial();
// Apply the line material
lineMaterial.SetPass(0);
if (mode == EMode.Axis || mode == EMode.Axis_Cube)
{
GL.PushMatrix();
// Set transformation matrix for drawing to
// match our transform
GL.MultMatrix(transform.localToWorldMatrix);
// Draw lines
GL.Begin(GL.LINES);
float len = 0.3f;
GL.Color(Color.red);
PutVertex(Vector3.zero);
PutVertex(Vector3.right * len);
GL.Color(Color.green);
PutVertex(Vector3.zero);
PutVertex(Vector3.up * len);
GL.Color(Color.blue);
PutVertex(Vector3.zero);
PutVertex(Vector3.forward * len);
GL.End();
GL.PopMatrix();
}
if (mode == EMode.Cube || mode == EMode.Axis_Cube)
{
GL.PushMatrix();
// Set transformation matrix for drawing to
// match our transform
GL.MultMatrix(transform.localToWorldMatrix);
float len = cubeLen / 2.0f;
GL.wireframe = true;
GL.Begin(GL.QUADS);
GL.Color(color);
GL.Vertex3(len, len, -len);
GL.Vertex3(-len, len, -len);
GL.Vertex3(-len, len, len);
GL.Vertex3(len, len, len);
// Bottom face (y = -len)
GL.Vertex3(len, -len, len);
GL.Vertex3(-len, -len, len);
GL.Vertex3(-len, -len, -len);
GL.Vertex3(len, -len, -len);
// Front face (z = len)
GL.Vertex3(len, len, len);
GL.Vertex3(-len, len, len);
GL.Vertex3(-len, -len, len);
GL.Vertex3(len, -len, len);
// Back face (z = -len)
GL.Vertex3(len, -len, -len);
GL.Vertex3(-len, -len, -len);
GL.Vertex3(-len, len, -len);
GL.Vertex3(len, len, -len);
// Left face (x = -len)
GL.Vertex3(-len, len, len);
GL.Vertex3(-len, len, -len);
GL.Vertex3(-len, -len, -len);
GL.Vertex3(-len, -len, len);
// Right face (x = len)
GL.Vertex3(len, len, -len);
GL.Vertex3(len, len, len);
GL.Vertex3(len, -len, len);
GL.Vertex3(len, -len, -len);
GL.End(); // End of drawing color-cube
GL.wireframe = false;
GL.PopMatrix();
}
if (mode == EMode.Custom)
{
if (customDraw != null)
{
customDraw.Invoke();
}
}
}
}
}
|
