AlphaFade.shader

Shader "Custom/AlphaFade" {
    Properties {
        _Color ("Main Color", Color) = (1,1,1,1)
        _MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
        _Alpha ("Alpha",  Range(0,1)) = 1.0
        _Glossiness ("Smoothness", Range(0,1)) = 0.5
        _Metallic ("Metallic", Range(0,1)) = 0.0
    }

    SubShader {
        Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
        LOD 200
        Blend SrcAlpha OneMinusSrcAlpha

        CGPROGRAM
        #pragma surface surf Standard keepalpha

        sampler2D _MainTex;
        fixed4 _Color;
        float _Alpha;
        float _Metallic, _Glossiness;

        struct Input {
            float2 uv_MainTex;
        };

        void surf (Input IN, inout SurfaceOutputStandard o) {
            // Albedo comes from a texture tinted by color
            fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
            o.Albedo = c.rgb;
            o.Alpha = _Alpha;
            // Metallic and smoothness come from slider variables
            o.Metallic = _Metallic;
            o.Smoothness = _Glossiness;
        }
        ENDCG
    }

    // enable shadow casting

    Fallback "Diffuse"
}