// Made with Amplify Shader Editor
// Available at the Unity Asset Store - http://u3d.as/y3X 
Shader "Unlit/GlassShader"
{
	Properties
	{
		_Color ("Tint", Color) = (1,1,1,1)
		[MaterialToggle] PixelSnap ("Pixel snap", Float) = 0
		[PerRendererData] _AlphaTex ("External Alpha", 2D) = "white" {}
		_TextureSample1("Texture Sample 1", 2D) = "white" {}
		_Float0("Float 0", Float) = 8.38
		[HDR]_Color0("Color 0", Color) = (1,0.2216981,0.2216981,0)
		_In("In", Float) = 1.59
		_TimeScale("TimeScale", Float) = 0.67
		_MainTex("Texture 0", 2D) = "white" {}
		[HideInInspector] _texcoord( "", 2D ) = "white" {}

	}

	SubShader
	{
		LOD 0

		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" "CanUseSpriteAtlas"="True" }

		Cull Off
		Lighting Off
		ZWrite Off
		Blend One OneMinusSrcAlpha
		
		
		Pass
		{
		CGPROGRAM
			
			#ifndef UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX
			#define UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input)
			#endif
			#pragma vertex vert
			#pragma fragment frag
			#pragma target 3.0
			#pragma multi_compile _ PIXELSNAP_ON
			#pragma multi_compile _ ETC1_EXTERNAL_ALPHA
			#include "UnityCG.cginc"
			#include "UnityShaderVariables.cginc"


			struct appdata_t
			{
				float4 vertex   : POSITION;
				float4 color    : COLOR;
				float2 texcoord : TEXCOORD0;
				UNITY_VERTEX_INPUT_INSTANCE_ID
				
			};

			struct v2f
			{
				float4 vertex   : SV_POSITION;
				fixed4 color    : COLOR;
				float2 texcoord  : TEXCOORD0;
				UNITY_VERTEX_INPUT_INSTANCE_ID
				UNITY_VERTEX_OUTPUT_STEREO
				
			};
			
			uniform fixed4 _Color;
			uniform float _EnableExternalAlpha;
			uniform sampler2D _MainTex;
			uniform sampler2D _AlphaTex;
			uniform float4 _MainTex_ST;
			uniform sampler2D _TextureSample1;
			uniform float4 _TextureSample1_ST;
			uniform float _Float0;
			uniform float4 _Color0;
			uniform float _In;
			uniform float _TimeScale;
					float2 voronoihash5( float2 p )
					{
						
						p = float2( dot( p, float2( 127.1, 311.7 ) ), dot( p, float2( 269.5, 183.3 ) ) );
						return frac( sin( p ) *43758.5453);
					}
			
					float voronoi5( float2 v, float time, inout float2 id, inout float2 mr, float smoothness, inout float2 smoothId )
					{
						float2 n = floor( v );
						float2 f = frac( v );
						float F1 = 8.0;
						float F2 = 8.0; float2 mg = 0;
						for ( int j = -3; j <= 3; j++ )
						{
							for ( int i = -3; i <= 3; i++ )
						 	{
						 		float2 g = float2( i, j );
						 		float2 o = voronoihash5( n + g );
								o = ( sin( time + o * 6.2831 ) * 0.5 + 0.5 ); float2 r = f - g - o;
								float d = 0.5 * dot( r, r );
						 		if( d<F1 ) {
						 			F2 = F1;
						 			F1 = d; mg = g; mr = r; id = o;
						 		} else if( d<F2 ) {
						 			F2 = d;
						
						 		}
						 	}
						}
						return F1;
					}
			

			
			v2f vert( appdata_t IN  )
			{
				v2f OUT;
				UNITY_SETUP_INSTANCE_ID(IN);
				UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(OUT);
				UNITY_TRANSFER_INSTANCE_ID(IN, OUT);
				
				
				IN.vertex.xyz +=  float3(0,0,0) ; 
				OUT.vertex = UnityObjectToClipPos(IN.vertex);
				OUT.texcoord = IN.texcoord;
				OUT.color = IN.color * _Color;
				#ifdef PIXELSNAP_ON
				OUT.vertex = UnityPixelSnap (OUT.vertex);
				#endif

				return OUT;
			}

			fixed4 SampleSpriteTexture (float2 uv)
			{
				fixed4 color = tex2D (_MainTex, uv);

#if ETC1_EXTERNAL_ALPHA
				// get the color from an external texture (usecase: Alpha support for ETC1 on android)
				fixed4 alpha = tex2D (_AlphaTex, uv);
				color.a = lerp (color.a, alpha.r, _EnableExternalAlpha);
#endif //ETC1_EXTERNAL_ALPHA

				return color;
			}
			
			fixed4 frag(v2f IN  ) : SV_Target
			{
				UNITY_SETUP_INSTANCE_ID( IN );
				UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX( IN );

				float2 uv_MainTex = IN.texcoord.xy * _MainTex_ST.xy + _MainTex_ST.zw;
				float4 tex2DNode38 = tex2D( _MainTex, uv_MainTex );
				float2 uv_TextureSample1 = IN.texcoord.xy * _TextureSample1_ST.xy + _TextureSample1_ST.zw;
				float mulTime7 = _Time.y * _Float0;
				float time5 = mulTime7;
				float2 voronoiSmoothId0 = 0;
				float2 coords5 = IN.texcoord.xy * 18.7;
				float2 id5 = 0;
				float2 uv5 = 0;
				float fade5 = 0.5;
				float voroi5 = 0;
				float rest5 = 0;
				for( int it5 = 0; it5 <6; it5++ ){
				voroi5 += fade5 * voronoi5( coords5, time5, id5, uv5, 0,voronoiSmoothId0 );
				rest5 += fade5;
				coords5 *= 2;
				fade5 *= 0.5;
				}//Voronoi5
				voroi5 /= rest5;
				float mulTime34 = _Time.y * _TimeScale;
				
				fixed4 c = ( tex2DNode38 + ( ( ( tex2DNode38.a - tex2D( _TextureSample1, uv_TextureSample1 ).a ) * ( voroi5 * _Color0 ) ) * ( _In * ( ( pow( sin( mulTime34 ) , 2.0 ) + 0.2 ) * 0.8 ) ) ) );
				c.rgb *= c.a;
				return c;
			}
		ENDCG
		}
	}
	CustomEditor "ASEMaterialInspector"
	
	
}
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