Logarithmic slider?

Any thoughts about adding the possibility to make a slider logarithmic? This would be very useful for many cases. If i want to do it myself i guess i have to make a completely new Slider component?

 

I was looking for the same thing.

It's been a while, but maybe this will help: I just thought to take the value in as a linear value, and then apply the exponential/logarithm in the script itself

maybe you can somehow override the readout to say the post-modified value as well, but the "actual" value of the slider is the linear one, still

 

I know this is an ancient thread, but Unity's already implemented a power/log slider; and regular sliders are simply power sliders with a power of 1.0f. However, the dang method is internal :-/

Try this

Code (CSharp):

1. #if UNITY_EDITOR
2. [CustomPropertyDrawer(typeof(LogarithmicRangeAttribute))]
3. public class LogarithmicRangeDrawer : PropertyDrawer {
4.   public override void OnGUI(Rect position, SerializedProperty property, GUIContent label) {
5.     LogarithmicRangeAttribute attribute = (LogarithmicRangeAttribute) this.attribute;
6.     if (property.propertyType != SerializedPropertyType.Float) {
7.       EditorGUI.LabelField(position, label.text, "Use LogarithmicRange with float.");
8.       return;
9.     }
10.  
11.     Slider(position, property, attribute.min, attribute.max, attribute.power, label);
12.   }
13.  
14.   public static void Slider(
15.       Rect position, SerializedProperty property,
16.       float leftValue, float rightValue, float power, GUIContent label) {
17.     label = EditorGUI.BeginProperty(position, label, property);
18.     EditorGUI.BeginChangeCheck();
19.     float num = PowerSlider(position, label, property.floatValue, leftValue, rightValue, power);
20.  
21.     if (EditorGUI.EndChangeCheck())
22.       property.floatValue = num;
23.     EditorGUI.EndProperty();
24.   }
25.  
26.   public static float PowerSlider(Rect position, GUIContent label, float value, float leftValue, float rightValue, float power) {
27.     var editorGuiType = typeof(EditorGUI);
28.     var methodInfo = editorGuiType.GetMethod(
29.         "PowerSlider",
30.         System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Static,
31.         null,
32.         new[] {typeof(Rect), typeof(GUIContent), typeof(float), typeof(float), typeof(float), typeof(float)},
33.         null);
34.     if (methodInfo != null) {
35.       return (float)methodInfo.Invoke(null, new object[]{position, label, value, leftValue, rightValue, power});
36.     }
37.     return leftValue;
38.   }
39. }
40. #endif
41.  
42.  
43. [AttributeUsage(AttributeTargets.Field)]
44. public class LogarithmicRangeAttribute : PropertyAttribute {
45.   public readonly float min = 1e-3f;
46.   public readonly float max = 1e3f;
47.   public readonly float power = 2;
48.   public LogarithmicRangeAttribute(float min, float max, float power) {
49.     if (min <= 0) {
50.       min = 1e-4f;
51.     }
52.     this.min = min;
53.     this.max = max;
54.     this.power = power;
55.   }
56. }
57.  

 

Was doing some audio related editor stuff and cooked one up myself. This one allows for a custom min, max and a value for the center.

https://gist.github.com/bartofzo/6ad28a05ba9fc82e10a64f0c121c5c24