feat: option to disable softening completely

close #98
mob-sakai · Sep 8, 2020 · dedd847 · dedd847
1 parent e035e87
commit dedd847
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/Packages/SoftMaskForUGUI/Scripts/SoftMask.cs b/Packages/SoftMaskForUGUI/Scripts/SoftMask.cs
@@ -72,7 +72,7 @@ public enum DesamplingRate
         [SerializeField, Tooltip("The desampling rate for soft mask buffer.")]
         private DesamplingRate m_DesamplingRate = DesamplingRate.x1;
 
-        [SerializeField, Range(0.01f, 1), Tooltip("The value used by the soft mask to select the area of influence defined over the soft mask's graphic.")]
+        [SerializeField, Range(0, 1), Tooltip("The value used by the soft mask to select the area of influence defined over the soft mask's graphic.")]
         private float m_Softness = 1;
 
         [SerializeField, Range(0f, 1f), Tooltip("The transparency of the whole masked graphic.")]

diff --git a/Packages/SoftMaskForUGUI/Shaders/Resources/SoftMask.shader b/Packages/SoftMaskForUGUI/Shaders/Resources/SoftMask.shader
@@ -23,7 +23,8 @@ Shader "Hidden/SoftMask" {
 
 			fixed4 frag (v2f_img i) : SV_Target
 			{
-				return saturate(tex2D(_MainTex, i.uv).a/_Softness) * _Alpha;
+			    half softness = max(_Softness, 0.0001f);
+				return saturate(tex2D(_MainTex, i.uv).a/softness) * _Alpha;
 			}
 			ENDCG
 		}