From d82dd4514b418b0b49d5e17fa150b0dcc078fb8e Mon Sep 17 00:00:00 2001
From: wheatv3015 <60979035+wheatv3015@users.noreply.github.com>
Date: Wed, 29 Sep 2021 11:51:28 -0500
Subject: [PATCH] Create CellShader.shader

-Added in Cell Shader
---
 Assets/Materials/CellShader.shader | 72 ++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 Assets/Materials/CellShader.shader

diff --git a/Assets/Materials/CellShader.shader b/Assets/Materials/CellShader.shader
new file mode 100644
index 0000000..e760331
--- /dev/null
+++ b/Assets/Materials/CellShader.shader
@@ -0,0 +1,72 @@
+Shader "Unlit/CellShader"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white" {}
+        _Brightness("Brightness", Range(0,1)) = 0.3
+        _Strength("Strength", Range(0,1)) = 0.5
+        _Color("Color", COLOR) = (1,1,1,1)
+        _Detail("Detail", Range(0,1)) = 0.3
+    }
+    SubShader
+    {
+        Tags { "RenderType"="Opaque" }
+        LOD 100
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+
+
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+                float3 normal : NORMAL;
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+                half3 worldNormal : NORMAL;
+            };
+
+            sampler2D _MainTex;
+            float4 _MainTex_ST;
+            float _Brightness;
+            float _Strength;
+            float4 _Color;
+            float _Detail;
+
+            float Toon(float3 normal, float3 lightDir)
+            {
+                float NdotL = max(0.0, dot(normalize(normal), normalize(lightDir)));
+
+                return floor(NdotL/_Detail);
+            }
+
+            v2f vert (appdata v)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+                o.worldNormal = UnityObjectToWorldNormal(v.normal);
+                return o;
+            }
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+                // sample the texture
+                fixed4 col = tex2D(_MainTex, i.uv);
+                col *= Toon(i.worldNormal, _WorldSpaceLightPos0.xyz)*_Strength*_Color + _Brightness;
+                return col;
+            }
+            ENDCG
+        }
+    }
+}