GGJ_2019/Assets/AmplifyShaderEditor/Examples/Official/StencilExample/RefractionsPanels/AnimatedRefraction.shader

// Made with Amplify Shader Editor
// Available at the Unity Asset Store - http://u3d.as/y3X 
Shader "ASESampleShaders/Stencil Example/AnimatedRefraction"
{
	Properties
	{
		_PortalColor("PortalColor", Color) = (0.003838672,0.5220588,0.243292,0)
		_Distortion("Distortion", Range( 0 , 1)) = 0.292
		_BrushedMetalNormal("BrushedMetalNormal", 2D) = "bump" {}
		[HideInInspector] _texcoord( "", 2D ) = "white" {}
		[HideInInspector] __dirty( "", Int ) = 1
	}

	SubShader
	{
		Tags{ "RenderType" = "Transparent"  "Queue" = "Transparent+100" "IgnoreProjector" = "True" "IsEmissive" = "true"  }
		Cull Back
		GrabPass{ }
		CGPROGRAM
		#include "UnityShaderVariables.cginc"
		#pragma target 3.0
		#pragma surface surf Standard alpha:fade keepalpha addshadow fullforwardshadows 
		struct Input
		{
			float4 screenPos;
			float2 uv_texcoord;
		};

		uniform sampler2D _GrabTexture;
		uniform sampler2D _BrushedMetalNormal;
		uniform float4 _BrushedMetalNormal_ST;
		uniform float _Distortion;
		uniform float4 _PortalColor;

		void surf( Input i , inout SurfaceOutputStandard o )
		{
			float4 ase_screenPos = float4( i.screenPos.xyz , i.screenPos.w + 0.00000000001 );
			float4 ase_screenPos39 = ase_screenPos;
			#if UNITY_UV_STARTS_AT_TOP
			float scale39 = -1.0;
			#else
			float scale39 = 1.0;
			#endif
			float halfPosW39 = ase_screenPos39.w * 0.5;
			ase_screenPos39.y = ( ase_screenPos39.y - halfPosW39 ) * _ProjectionParams.x* scale39 + halfPosW39;
			ase_screenPos39.xyzw /= ase_screenPos39.w;
			float4 normalizedClip21 = ase_screenPos39;
			float2 uv_BrushedMetalNormal = i.uv_texcoord * _BrushedMetalNormal_ST.xy + _BrushedMetalNormal_ST.zw;
			float cos33 = cos( _Time.y );
			float sin33 = sin( _Time.y );
			float2 rotator33 = mul( uv_BrushedMetalNormal - float2( 0.5,0.5 ) , float2x2( cos33 , -sin33 , sin33 , cos33 )) + float2( 0.5,0.5 );
			float4 screenColor8 = tex2Dproj( _GrabTexture, UNITY_PROJ_COORD( ( normalizedClip21 + float4( ( UnpackNormal( tex2D( _BrushedMetalNormal, rotator33 ) ) * _Distortion ) , 0.0 ) ) ) );
			o.Emission = ( screenColor8 * _PortalColor ).rgb;
			o.Alpha = 1;
		}

		ENDCG
	}
	Fallback "Diffuse"
	CustomEditor "ASEMaterialInspector"
}
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//CHKSM=6D6C321FB02BE457256E5A07C6464863BCD261AD