Add wavy-ocean

README.md

@@ -1,2 +1,5 @@
 # shader-gallery
 A collection of shaders I've created for Unity3D
+
+## Wavy Ocean
+![wavy-ocean](img/wavy-ocean.png "wavy-ocean")

wavy-ocean.shader

@@ -0,0 +1,55 @@
+// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
+
+Shader "Custom/WavyOcean"
+{
+	Properties
+	{
+		_MainTex ("Texture", 2D) = "white" {}
+	}
+	SubShader
+	{
+		Tags { "RenderType" = "Opaque" }
+		LOD 100
+
+		Pass
+		{
+			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+
+			#include "UnityCG.cginc"
+
+			static const float mpi = 3.141592654;
+
+			sampler2D _MainTex;
+			float4 _MainTex_ST;
+
+			struct vertOutput
+			{
+				float2 uv : TEXCOORD0;
+				float4 vertex : SV_POSITION;
+			};
+
+			vertOutput vert (appdata_base input)
+			{
+				vertOutput output;
+
+				output.vertex = UnityObjectToClipPos(input.vertex);
+
+				float2 dtexcoord = input.texcoord;
+				dtexcoord.x = dtexcoord.x + sin(dtexcoord.y * 2 * mpi + _Time[0] * 2) * 0.1;
+
+				output.uv = TRANSFORM_TEX(dtexcoord, _MainTex);
+
+				return output;
+			}
+
+			fixed4 frag (vertOutput input) : SV_Target
+			{
+				fixed4 col = tex2D(_MainTex, input.uv);
+				return col;
+			}
+			ENDCG
+		}
+	}
+}