Add parameters for outline width multiplier & stenciling

Outline width makes it easier to animate outline width across an avatar
with many materials of different widths.

Stenciling being toggleable is just nice for customization.

4 files changed, 17 insertions, 2 deletions

diff --git a/Editor/tooner.cs b/Editor/tooner.cs
index 71e7271..da9397a 100644
--- a/Editor/tooner.cs
+++ b/Editor/tooner.cs
@@ -496,6 +496,18 @@ public class ToonerGUI : ShaderGUI {
         inverted = EditorGUILayout.Toggle("Invert mask", inverted);
         EditorGUI.EndChangeCheck();
         bc.floatValue = inverted ? 1.0f : 0.0f;
+
+        bc = FindProperty("_Outline_Width_Multiplier");
+        editor.FloatProperty(
+            bc,
+            "Outline width multiplier");
+
+        bc = FindProperty("_Outline_Stenciling");
+        bool enabled = (bc.floatValue == 1.0);
+        EditorGUI.BeginChangeCheck();
+        enabled = EditorGUILayout.Toggle("Enable stenciling", enabled);
+        EditorGUI.EndChangeCheck();
+        bc.floatValue = enabled ? 1.0f : 2.0f;
       }
   }
 
diff --git a/globals.cginc b/globals.cginc
index 6c3d51f..c3139e1 100644
--- a/globals.cginc
+++ b/globals.cginc
@@ -132,6 +132,7 @@ float4 _Outline_Color;
 float _Outline_Emission_Strength;
 texture2D _Outline_Mask;
 float _Outline_Mask_Invert;
+float _Outline_Width_Multiplier;
 #endif
 
 #if defined(_GLITTER)
diff --git a/tooner.shader b/tooner.shader
index d03d53e..d8a8283 100644
--- a/tooner.shader
+++ b/tooner.shader
@@ -96,6 +96,8 @@ Shader "yum_food/tooner"
     _Outline_Emission_Strength("Outline emission strength", Range(0, 2)) = 0.2
     _Outline_Mask("Outline mask", 2D) = "white" {}
     _Outline_Mask_Invert("Invert outline mask", Float) = 0.0
+    _Outline_Width_Multiplier("Outline width multiplier", Float) = 1
+    [MaterialToggle] _Outline_Stenciling("Enable outline stenciling", Float) = 1
 
     _Glitter_Enabled("Glitter enabled", Float) = 0
     _Glitter_Mask("Glitter mask", 2D) = "white" {}
@@ -400,7 +402,7 @@ Shader "yum_food/tooner"
       ZTest LEqual
 
       Stencil {
-        Ref 1
+        Ref [_Outline_Stenciling]
         Comp Greater
       }
 
diff --git a/tooner_outline_pass.cginc b/tooner_outline_pass.cginc
index 1767d2c..f7bc6af 100644
--- a/tooner_outline_pass.cginc
+++ b/tooner_outline_pass.cginc
@@ -35,7 +35,7 @@ v2f vert(appdata v)
   float outline_mask = _Outline_Mask.SampleLevel(linear_repeat_s, v.uv0.xy, /*lod=*/1);
   outline_mask = _Outline_Mask_Invert > 1E-6 ? 1 - outline_mask : outline_mask;
 
-  worldPos += worldNormal * _Outline_Width * outline_mask;
+  worldPos += worldNormal * _Outline_Width * outline_mask * _Outline_Width_Multiplier;
 
   objPos = mul(unity_WorldToObject, worldPos);
   clipPos = UnityObjectToClipPos(objPos);