feat: change the minimum value of SoftMaskable.power from 1 to 0.5,…

… allowing for smoother softness transitions

Packages/src/Runtime/Internal/Utilities/PowerRangeAttribute.cs

@@ -0,0 +1,56 @@
+using System;
+using UnityEditor;
+using UnityEngine;
+
+namespace Coffee.UISoftMaskInternal
+{
+    [AttributeUsage(AttributeTargets.Field)]
+    public sealed class PowerRangeAttribute : PropertyAttribute
+    {
+        public readonly float min;
+        public readonly float max;
+        public readonly float power;
+
+        public PowerRangeAttribute(float min, float max, float power)
+        {
+            this.min = min;
+            this.max = max;
+            this.power = power;
+        }
+    }
+
+#if UNITY_EDITOR
+    [CustomPropertyDrawer(typeof(PowerRangeAttribute))]
+    internal sealed class RangeDrawer : PropertyDrawer
+    {
+        public override void OnGUI(Rect r, SerializedProperty property, GUIContent label)
+        {
+            var labelWidth = EditorGUIUtility.labelWidth;
+            var attr = (PowerRangeAttribute)attribute;
+            label = EditorGUI.BeginProperty(r, label, property);
+
+            EditorGUI.BeginChangeCheck();
+            var rSlider = new Rect(r.x + labelWidth + 1, r.y, r.width - labelWidth - 57, r.height);
+            var powValue = Mathf.Log(property.floatValue, attr.power);
+            var powMin = Mathf.Log(attr.min, attr.power);
+            var powMax = Mathf.Log(attr.max, attr.power);
+            powValue = GUI.HorizontalSlider(rSlider, powValue, powMin, powMax);
+            if (EditorGUI.EndChangeCheck())
+            {
+                property.floatValue = Mathf.Clamp(Mathf.Pow(attr.power, powValue), attr.min, attr.max);
+            }
+
+            EditorGUI.BeginChangeCheck();
+            EditorGUIUtility.labelWidth = r.width - 53;
+            var newValue = EditorGUI.FloatField(r, label, property.floatValue);
+            if (EditorGUI.EndChangeCheck())
+            {
+                property.floatValue = Mathf.Clamp(newValue, attr.min, attr.max);
+            }
+
+            EditorGUI.EndProperty();
+            EditorGUIUtility.labelWidth = labelWidth;
+        }
+    }
+#endif
+}

Packages/src/Runtime/SoftMaskable.cs

@@ -16,7 +16,7 @@ public class SoftMaskable : MonoBehaviour, IMaterialModifier, IMaskable
         private static readonly int s_AllowDynamicResolution = Shader.PropertyToID("_AllowDynamicResolution");
         private static readonly int s_AllowRenderScale = Shader.PropertyToID("_AllowRenderScale");
         private static readonly int s_SoftMaskingPower = Shader.PropertyToID("_SoftMaskingPower");
-        private const float k_PowerMin = 1f;
+        private const float k_PowerMin = 0.5f;
         private const float k_PowerMax = 5f;
 
         [Tooltip("The graphic is ignored when soft-masking.")]
@@ -31,7 +31,7 @@ public class SoftMaskable : MonoBehaviour, IMaterialModifier, IMaskable
                  "The higher this value, the faster it becomes transparent.\n" +
                  "If overlapping objects appear see-through, please adjust this value.")]
         [SerializeField]
-        [Range(k_PowerMin, k_PowerMax)]
+        [PowerRange(k_PowerMin, k_PowerMax, 10)]
         private float m_Power = 1f;
 
         /// <summary>