Add discard feature

Like UV tile discard, but less useful!

5 files changed, 32 insertions, 0 deletions

diff --git a/Editor/tooner.cs b/Editor/tooner.cs
index b51facb..d769a02 100644
--- a/Editor/tooner.cs
+++ b/Editor/tooner.cs
@@ -1487,6 +1487,24 @@ public class ToonerGUI : ShaderGUI {
       RecordAction("Culling mode");
       bc.floatValue = (float) cull_mode;
     }
+
+    bc = FindProperty("_Discard_Enable_Static");
+    bool enabled = bc.floatValue > 1E-6;
+    EditorGUI.BeginChangeCheck();
+    enabled = EditorGUILayout.Toggle("Discard", enabled);
+    EditorGUI.EndChangeCheck();
+    bc.floatValue = enabled ? 1.0f : 0.0f;
+    SetKeyword("_DISCARD", enabled);
+    if (enabled) {
+      EditorGUI.indentLevel += 1;
+      bc = FindProperty("_Discard_Enable_Dynamic");
+      enabled = bc.floatValue > 1E-6;
+      EditorGUI.BeginChangeCheck();
+      enabled = EditorGUILayout.Toggle("Enable", enabled);
+      EditorGUI.EndChangeCheck();
+      bc.floatValue = enabled ? 1.0f : 0.0f;
+      EditorGUI.indentLevel -= 1;
+    }
   }
 
   void DoLighting() {
diff --git a/feature_macros.cginc b/feature_macros.cginc
index bdc1369..2afe253 100644
--- a/feature_macros.cginc
+++ b/feature_macros.cginc
@@ -142,6 +142,7 @@
 #pragma shader_feature_local _ _CLEARCOAT_MASK
 #pragma shader_feature_local _ _CLEARCOAT_MASK2
 #pragma shader_feature_local _ _PROXIMITY_DIMMING
+#pragma shader_feature_local _ _DISCARD
 
 #endif  // __FEATURE_MACROS_INC
 
diff --git a/globals.cginc b/globals.cginc
index e070f7d..d2773b1 100644
--- a/globals.cginc
+++ b/globals.cginc
@@ -45,6 +45,10 @@ float3 shadowedReflections;
 float3 _ReflShadows;
 float3 _ReflShadowStrength;
 
+#if defined(_DISCARD)
+float _Discard_Enable_Dynamic;
+#endif
+
 #if defined(_PROXIMITY_DIMMING)
 float _Proximity_Dimming_Min_Dist;
 float _Proximity_Dimming_Max_Dist;
diff --git a/tooner.shader b/tooner.shader
index 9131702..c14e607 100644
--- a/tooner.shader
+++ b/tooner.shader
@@ -439,6 +439,9 @@ Shader "yum_food/tooner"
     shadowedReflections("shadowedReflections", Vector) = (0, 0, 0, 0)
     _ReflShadows("_ReflShadows", Vector) = (0, 0, 0, 0)
     _ReflShadowStrength("_ReflShadowStrength", Vector) = (0, 0, 0, 0)
+
+    _Discard_Enable_Static("Enable discard feature (static)", Float) = 0
+    _Discard_Enable_Dynamic("Enable discard feature (dynamic)", Float) = 0
   }
   SubShader
   {
diff --git a/tooner_lighting.cginc b/tooner_lighting.cginc
index 1abf2bc..70df5ea 100644
--- a/tooner_lighting.cginc
+++ b/tooner_lighting.cginc
@@ -47,6 +47,12 @@ void getVertexLightColor(inout v2f i)
 
 v2f vert(appdata v)
 {
+#if defined(_DISCARD)
+  if (_Discard_Enable_Dynamic) {
+    return (v2f) (0.0 / 0.0);
+  }
+#endif
+
   v2f o;
 
   UNITY_INITIALIZE_OUTPUT(v2f, o);