Shader "Custom/TestLit"
{
    Properties
    {
        _Color ("Color", Color) = (1,1,1,1)
        _MainTex ("Albedo (RGB)", 2D) = "white" {}
        _Glossiness ("Smoothness", Range(0,1)) = 0.5
        _Metallic ("Metallic", Range(0,1)) = 0.0
		_Amplitude ("Amplitude", float) = 1
		_Frequency ("Frequency", float) = 1
		_Speed ("Speed", float) = 1
    }
    SubShader
    {
        Tags { "RenderType"="Transparent" "Queue"="Transparent"}
        LOD 200

        CGPROGRAM
        // Physically based Standard lighting model, and enable shadows on all light types
        #pragma surface surf Standard fullforwardshadows vertex:vert

        // Use shader model 3.0 target, to get nicer looking lighting
        #pragma target 3.0

        sampler2D _MainTex;

        struct Input
        {
            float2 uv_MainTex;
        };

        half _Glossiness;
        half _Metallic;
        fixed4 _Color;

		float _Amplitude;
		float _Frequency;
		float _Speed;

		void vert(inout appdata_full v, out Input o)
		{
			v.vertex.y = sin(_Time.w * _Speed + v.vertex.x * _Frequency) * _Amplitude;
			UNITY_INITIALIZE_OUTPUT(Input, o);
		}

        void surf (Input IN, inout SurfaceOutputStandard o)
        {
            fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
            o.Albedo = c.rgb;
            o.Metallic = _Metallic;
            o.Smoothness = _Glossiness;
            o.Alpha = c.a;
        }
        ENDCG
    }
    FallBack "Diffuse"
}