added tutorials

Author: iamslash

Assets/Tutorials/Script.meta Assets/Script.meta

@@ -0,0 +1,82 @@
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Assets/Tutorials/Script/Spinit.cs Assets/Script/Spinit.cs

@@ -0,0 +1,42 @@
+// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
+Shader "UnityShaderTutorial/skymap_reflect_normal" {
+    Properties
+    {
+        _Density ("Density", Range(2,50)) = 30
+    }
+    SubShader
+    {
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #include "UnityCG.cginc"
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+            };
+
+            float _Density;
+
+            v2f vert (float4 pos : POSITION, float2 uv : TEXCOORD0)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(pos);
+                o.uv = uv * _Density;
+                return o;
+            }
+            
+            fixed4 frag (v2f i) : SV_Target
+            {
+                float2 c = i.uv;
+                c = floor(c) / 2;
+                float checker = frac(c.x + c.y) * 2;
+                return checker;
+            }
+            ENDCG
+        }
+    }
+}