alpha_by_camera_distance.shader

alpha_by_camera_distance.shader

Shader "Custom/Transparent/DiffuseRoad" {
	Properties {
		_Color ("Main Color", Color) = (1,1,1,1)
		_MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
        _MinDistance ("Min Distance", Float) = 3.2
        _MaxDistance ("Max Distance", Float) = 4.0
	}

	SubShader {
		Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
		LOD 200
		
        ZWrite On
        ColorMask 0
        Blend SrcAlpha OneMinusSrcAlpha 
        Cull off

		CGPROGRAM
		#pragma surface surf Lambert alpha

		sampler2D _MainTex;
		fixed4 _Color;
        float _MinDistance;
        float _MaxDistance;

		struct Input {
			float2 uv_MainTex;
            float3 worldPos;
		};

		void surf (Input IN, inout SurfaceOutput o) {
			fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
			o.Albedo = c.rgb;


//			o.Alpha = c.a * (1.0f - saturate((distance(IN.worldPos, _WorldSpaceCameraPos) - 0.1f) / 30.0f));
            o.Alpha = c.a * (1.0f - saturate((distance(IN.worldPos, _WorldSpaceCameraPos) - _MinDistance)/(_MaxDistance - _MinDistance)));         
		}
		ENDCG
	}

	Fallback "Transparent/VertexLit"
}