// Made with Amplify Shader Editor v1.9.2
// Available at the Unity Asset Store - http://u3d.as/y3X 
Shader "Polyart/Dreamscape/Builtin/Particles/Cloud Card"
{
	Properties
	{
		[SingleLineTexture]_DistorsionMap("Distorsion Map", 2D) = "white" {}
		[SingleLineTexture]_CloudMap("Cloud Map", 2D) = "white" {}
		_CloudPosition("CloudPosition", Vector) = (0,0,0,0)
		_Color("Color", Color) = (1,1,1,1)
		_EmissionColor("Emission Color", Color) = (1,1,1,1)
		_DistortionLocation("Distortion Location", Float) = 1
		_DistortionSpeed("Distortion Speed", Float) = 0.01
		_DistortionIntensity("Distortion Intensity", Float) = 0.1
		_AlphaDensity("Alpha Density", Float) = 1
		_DepthFade("Depth Fade", Float) = 0
		[HideInInspector] _texcoord( "", 2D ) = "white" {}
		[HideInInspector] __dirty( "", Int ) = 1
	}

	SubShader
	{
		Tags{ "RenderType" = "Transparent"  "Queue" = "Transparent+0" "IgnoreProjector" = "True" "IsEmissive" = "true"  }
		Cull Off
		CGINCLUDE
		#include "UnityShaderVariables.cginc"
		#include "UnityCG.cginc"
		#include "UnityPBSLighting.cginc"
		#include "Lighting.cginc"
		#pragma target 3.0
		struct Input
		{
			float2 uv_texcoord;
			float4 screenPos;
		};

		uniform float4 _Color;
		uniform sampler2D _CloudMap;
		uniform float2 _CloudPosition;
		uniform sampler2D _DistorsionMap;
		uniform float _DistortionSpeed;
		uniform float _DistortionLocation;
		uniform float _DistortionIntensity;
		uniform float4 _EmissionColor;
		uniform float _AlphaDensity;
		UNITY_DECLARE_DEPTH_TEXTURE( _CameraDepthTexture );
		uniform float4 _CameraDepthTexture_TexelSize;
		uniform float _DepthFade;

		void surf( Input i , inout SurfaceOutputStandard o )
		{
			float2 temp_cast_0 = (_DistortionSpeed).xx;
			float2 uv_TexCoord2 = i.uv_texcoord * float2( 0.1,0.1 );
			float2 panner6 = ( 0.01 * _Time.y * temp_cast_0 + ( uv_TexCoord2 * _DistortionLocation ));
			float2 lerpResult17 = lerp( ( _CloudPosition + i.uv_texcoord ) , ( i.uv_texcoord + ( (tex2D( _DistorsionMap, panner6 )).rg * _DistortionIntensity ) ) , float2( 0.5,0.5 ));
			float4 tex2DNode18 = tex2D( _CloudMap, lerpResult17 );
			o.Albedo = ( _Color * tex2DNode18 ).rgb;
			o.Emission = _EmissionColor.rgb;
			float4 ase_screenPos = float4( i.screenPos.xyz , i.screenPos.w + 0.00000000001 );
			float4 ase_screenPosNorm = ase_screenPos / ase_screenPos.w;
			ase_screenPosNorm.z = ( UNITY_NEAR_CLIP_VALUE >= 0 ) ? ase_screenPosNorm.z : ase_screenPosNorm.z * 0.5 + 0.5;
			float screenDepth24 = LinearEyeDepth(SAMPLE_DEPTH_TEXTURE( _CameraDepthTexture, ase_screenPosNorm.xy ));
			float distanceDepth24 = saturate( abs( ( screenDepth24 - LinearEyeDepth( ase_screenPosNorm.z ) ) / ( _DepthFade ) ) );
			o.Alpha = saturate( ( ( tex2DNode18.a * _AlphaDensity ) * distanceDepth24 ) );
		}

		ENDCG
		CGPROGRAM
		#pragma surface surf Standard alpha:fade keepalpha fullforwardshadows nofog 

		ENDCG
		Pass
		{
			Name "ShadowCaster"
			Tags{ "LightMode" = "ShadowCaster" }
			ZWrite On
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			#pragma target 3.0
			#pragma multi_compile_shadowcaster
			#pragma multi_compile UNITY_PASS_SHADOWCASTER
			#pragma skip_variants FOG_LINEAR FOG_EXP FOG_EXP2
			#include "HLSLSupport.cginc"
			#if ( SHADER_API_D3D11 || SHADER_API_GLCORE || SHADER_API_GLES || SHADER_API_GLES3 || SHADER_API_METAL || SHADER_API_VULKAN )
				#define CAN_SKIP_VPOS
			#endif
			#include "UnityCG.cginc"
			#include "Lighting.cginc"
			#include "UnityPBSLighting.cginc"
			sampler3D _DitherMaskLOD;
			struct v2f
			{
				V2F_SHADOW_CASTER;
				float2 customPack1 : TEXCOORD1;
				float3 worldPos : TEXCOORD2;
				float4 screenPos : TEXCOORD3;
				UNITY_VERTEX_INPUT_INSTANCE_ID
				UNITY_VERTEX_OUTPUT_STEREO
			};
			v2f vert( appdata_full v )
			{
				v2f o;
				UNITY_SETUP_INSTANCE_ID( v );
				UNITY_INITIALIZE_OUTPUT( v2f, o );
				UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO( o );
				UNITY_TRANSFER_INSTANCE_ID( v, o );
				Input customInputData;
				float3 worldPos = mul( unity_ObjectToWorld, v.vertex ).xyz;
				half3 worldNormal = UnityObjectToWorldNormal( v.normal );
				o.customPack1.xy = customInputData.uv_texcoord;
				o.customPack1.xy = v.texcoord;
				o.worldPos = worldPos;
				TRANSFER_SHADOW_CASTER_NORMALOFFSET( o )
				o.screenPos = ComputeScreenPos( o.pos );
				return o;
			}
			half4 frag( v2f IN
			#if !defined( CAN_SKIP_VPOS )
			, UNITY_VPOS_TYPE vpos : VPOS
			#endif
			) : SV_Target
			{
				UNITY_SETUP_INSTANCE_ID( IN );
				Input surfIN;
				UNITY_INITIALIZE_OUTPUT( Input, surfIN );
				surfIN.uv_texcoord = IN.customPack1.xy;
				float3 worldPos = IN.worldPos;
				half3 worldViewDir = normalize( UnityWorldSpaceViewDir( worldPos ) );
				surfIN.screenPos = IN.screenPos;
				SurfaceOutputStandard o;
				UNITY_INITIALIZE_OUTPUT( SurfaceOutputStandard, o )
				surf( surfIN, o );
				#if defined( CAN_SKIP_VPOS )
				float2 vpos = IN.pos;
				#endif
				half alphaRef = tex3D( _DitherMaskLOD, float3( vpos.xy * 0.25, o.Alpha * 0.9375 ) ).a;
				clip( alphaRef - 0.01 );
				SHADOW_CASTER_FRAGMENT( IN )
			}
			ENDCG
		}
	}
	Fallback "Diffuse"
}
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