forked from ricardojmendez/LibNoise.Unity
/
GradientPresets.cs
executable file
·132 lines (109 loc) · 4.13 KB
/
GradientPresets.cs
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
using System.Collections.Generic;
using UnityEngine;
namespace LibNoise
{
/// <summary>
/// Provides a series of gradient presets
/// </summary>
public static class GradientPresets
{
#region Fields
private static readonly Gradient _empty;
private static readonly Gradient _grayscale;
private static readonly Gradient _rgb;
private static readonly Gradient _rgba;
private static readonly Gradient _terrain;
#endregion
#region Constructors
/// <summary>
/// Initializes a new instance of Gradient.
/// </summary>
static GradientPresets()
{
// Grayscale gradient color keys
var grayscaleColorKeys = new List<GradientColorKey>
{
new GradientColorKey(Color.black, 0),
new GradientColorKey(Color.white, 1)
};
// RGB gradient color keys
var rgbColorKeys = new List<GradientColorKey>
{
new GradientColorKey(Color.red, 0),
new GradientColorKey(Color.green, 0.5f),
new GradientColorKey(Color.blue, 1)
};
// RGBA gradient color keys
var rgbaColorKeys = new List<GradientColorKey>
{
new GradientColorKey(Color.red, 0),
new GradientColorKey(Color.green, 1 / 3f),
new GradientColorKey(Color.blue, 2 / 3f),
new GradientColorKey(Color.black, 1)
};
// RGBA gradient alpha keys
var rgbaAlphaKeys = new List<GradientAlphaKey> {new GradientAlphaKey(0, 2 / 3f), new GradientAlphaKey(1, 1)};
// Terrain gradient color keys
var terrainColorKeys = new List<GradientColorKey>
{
new GradientColorKey(new Color(0, 0, 0.5f), 0),
new GradientColorKey(new Color(0.125f, 0.25f, 0.5f), 0.4f),
new GradientColorKey(new Color(0.25f, 0.375f, 0.75f), 0.48f),
new GradientColorKey(new Color(0, 0.75f, 0), 0.5f),
new GradientColorKey(new Color(0.75f, 0.75f, 0), 0.625f),
new GradientColorKey(new Color(0.625f, 0.375f, 0.25f), 0.75f),
new GradientColorKey(new Color(0.5f, 1, 1), 0.875f),
new GradientColorKey(Color.white, 1)
};
// Generic gradient alpha keys
var alphaKeys = new List<GradientAlphaKey> {new GradientAlphaKey(1, 0), new GradientAlphaKey(1, 1)};
_empty = new Gradient();
_rgb = new Gradient();
_rgb.SetKeys(rgbColorKeys.ToArray(), alphaKeys.ToArray());
_rgba = new Gradient();
_rgba.SetKeys(rgbaColorKeys.ToArray(), rgbaAlphaKeys.ToArray());
_grayscale = new Gradient();
_grayscale.SetKeys(grayscaleColorKeys.ToArray(), alphaKeys.ToArray());
_terrain = new Gradient();
_terrain.SetKeys(terrainColorKeys.ToArray(), alphaKeys.ToArray());
}
#endregion
#region Properties
/// <summary>
/// Gets the empty instance of Gradient.
/// </summary>
public static Gradient Empty
{
get { return _empty; }
}
/// <summary>
/// Gets the grayscale instance of Gradient.
/// </summary>
public static Gradient Grayscale
{
get { return _grayscale; }
}
/// <summary>
/// Gets the RGB instance of Gradient.
/// </summary>
public static Gradient RGB
{
get { return _rgb; }
}
/// <summary>
/// Gets the RGBA instance of Gradient.
/// </summary>
public static Gradient RGBA
{
get { return _rgba; }
}
/// <summary>
/// Gets the terrain instance of Gradient.
/// </summary>
public static Gradient Terrain
{
get { return _terrain; }
}
#endregion
}
}