5 Materials Dissolve Shader - Unity

Dissolve.shader

//Reference: http://halisavakis.com/my-take-on-shaders-dissolve-shader/
//Special Thanks to Jack Raymond (https://www.facebook.com/john.raymond.125)

Shader "Custom/Dissolve" {
	Properties{

		_Color("Color", Color) = (1,1,1,1)
		_MainTex1("Albedo (RGB)", 2D) = "white" {}
		_SliceGuide1("Slice Guide (RGB)", 2D) = "white" {}
		_SliceAmount1("Slice Amount", Range(0.0, 1.0)) = 0

		_MainTex2("Albedo 2 (RGB)", 2D) = "white" {}
		_SliceGuide2("Slice Guide 2 (RGB)", 2D) = "white" {}
		_SliceAmount2("Slice Amount 2", Range(0.0, 1.0)) = 0

		_MainTex3("Albedo 3 (RGB)", 2D) = "white" {}
		_SliceGuide3("Slice Guide 3 (RGB)", 2D) = "white" {}
		_SliceAmount3("Slice Amount 3", Range(0.0, 1.0)) = 0

		_MainTex4("Albedo 4 (RGB)", 2D) = "white" {}
		_SliceGuide4("Slice Guide 4 (RGB)", 2D) = "white" {}
		_SliceAmount4("Slice Amount 4", Range(0.0, 1.0)) = 0

		_MainTex5("Albedo 5 (RGB)", 2D) = "white" {}
		_SliceGuide5("Slice Guide 5 (RGB)", 2D) = "white" {}
		_SliceAmount5("Slice Amount 5", Range(0.0, 1.0)) = 0

	}
		SubShader{
		Tags{ "RenderType" = "Opaque" }
		LOD 200
		Cull Off
		CGPROGRAM
#pragma surface surf Lambert addshadow
#pragma target 3.5

	fixed4 _Color;
	sampler2D _MainTex1;
	sampler2D _SliceGuide1;
	float _SliceAmount1;

	sampler2D _MainTex2;
	sampler2D _SliceGuide2;
	float _SliceAmount2;

	sampler2D _MainTex3;
	sampler2D _SliceGuide3;
	float _SliceAmount3;

	sampler2D _MainTex4;
	sampler2D _SliceGuide4;
	float _SliceAmount4;

	sampler2D _MainTex5;
	sampler2D _SliceGuide5;
	float _SliceAmount5;


	struct Input {
		float2 uv_MainTex1;
		float2 uv_MainTex2;
		float2 uv_MainTex3;
		float2 uv_MainTex4;
		float2 uv_MainTex5;
		INTERNAL_DATA
			float3 viewDir;
	};


	void surf(Input IN, inout SurfaceOutput o) {
		half mask1 = 1 - round((tex2D(_SliceGuide1, IN.uv_MainTex1).rgb - _SliceAmount1 + 0.5));
		fixed4 col1 = tex2D(_MainTex1, IN.uv_MainTex1) * mask1;

		half mask2 = 1 - round((tex2D(_SliceGuide2, IN.uv_MainTex2).rgb - _SliceAmount2 + 0.5));
		fixed4 col2 = tex2D(_MainTex2, IN.uv_MainTex2) * mask2 + col1 * (1 - mask2);

		half mask3 = 1 - round((tex2D(_SliceGuide3, IN.uv_MainTex3).rgb - _SliceAmount3 + 0.5));
		fixed4 col3 = tex2D(_MainTex3, IN.uv_MainTex3) * mask3 + col2 * (1 - mask3);

		half mask4 = 1 - round((tex2D(_SliceGuide4, IN.uv_MainTex4).rgb - _SliceAmount4 + 0.5));
		fixed4 col4 = tex2D(_MainTex4, IN.uv_MainTex4) * mask4 + col3 * (1 - mask4);

		half mask5 = 1 - round((tex2D(_SliceGuide5, IN.uv_MainTex5).rgb - _SliceAmount5 + 0.5));
		fixed4 col5 = tex2D(_MainTex5, IN.uv_MainTex5) * mask5;

		fixed4 c = (col5 * mask5 + col4 * (1 - mask5)) * _Color;

		o.Albedo = c.rgb;
		o.Alpha = c.a;
	}
	ENDCG
	}
		FallBack "Diffuse"
}