Shader "UltraCombos/Frozen/Snowflakes"
{
	Properties
	{
		[HDR]
		_Color("Color", Color) = (1,1,1,1)
		_MainTex("Texture", 2D) = "white" {}
		_SubTex1("Sub-Texture 1", 2D) = "white" {}
		_SubTex2("Sub-Texture 2", 2D) = "white" {}
		_SubTex3("Sub-Texture 3", 2D) = "white" {}
		_SubTex4("Sub-Texture 4", 2D) = "white" {}
		_SubTex5("Sub-Texture 5", 2D) = "white" {}
		_SubTex6("Sub-Texture 6", 2D) = "white" {}
		_SubTex7("Sub-Texture 7", 2D) = "white" {}
		_SubTex8("Sub-Texture 8", 2D) = "white" {}
		_SubTex9("Sub-Texture 9", 2D) = "white" {}
	}
	SubShader
	{
		//Tags { "RenderType"="Opaque" }
		Tags{ "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent" }
		LOD 100

		ZWrite Off
		ZTest Off
		Blend SrcAlpha OneMinusSrcAlpha

		Pass
		{
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			
			#include "UnityCG.cginc"

			struct appdata
			{
				float4 vertex : POSITION;
				float4 uv : TEXCOORD0;
				float4 color : COLOR;
			};

			struct v2f
			{
				float4 vertex : SV_POSITION;
				float4 uv : TEXCOORD0;
				float4 color : COLOR;
			};

			sampler2D _MainTex;
			//float4 _MainTex_ST;
			sampler2D _SubTex1;
			sampler2D _SubTex2;
			sampler2D _SubTex3;
			sampler2D _SubTex4;
			sampler2D _SubTex5;
			sampler2D _SubTex6;
			sampler2D _SubTex7;
			sampler2D _SubTex8;
			sampler2D _SubTex9;
			
			v2f vert (appdata v)
			{
				v2f o;
				o.vertex = UnityObjectToClipPos(v.vertex);
				//o.uv = TRANSFORM_TEX(v.uv.xy, _MainTex);
				o.uv = v.uv;
				//o.uv.xy = (o.uv.xy - float2(0.5, 0.5)) * 2.0 + float2(0.5, 0.5);
				//o.uv.x = saturate(o.uv.x);
				//o.uv.y = saturate(o.uv.y);
				o.color = v.color;
				return o;
			}
			
			fixed4 frag (v2f i) : SV_Target
			{
				const int tex_count = 10;
				fixed4 tex_colors[tex_count];
				tex_colors[0] = tex2D(_MainTex, i.uv.xy);
				tex_colors[1] = tex2D(_SubTex1, i.uv.xy);
				tex_colors[2] = tex2D(_SubTex2, i.uv.xy);
				tex_colors[3] = tex2D(_SubTex3, i.uv.xy);
				tex_colors[4] = tex2D(_SubTex4, i.uv.xy);
				tex_colors[5] = tex2D(_SubTex5, i.uv.xy);
				tex_colors[6] = tex2D(_SubTex6, i.uv.xy);
				tex_colors[7] = tex2D(_SubTex7, i.uv.xy);
				tex_colors[8] = tex2D(_SubTex8, i.uv.xy);
				tex_colors[9] = tex2D(_SubTex9, i.uv.xy);
				int tex_index = i.uv.z * tex_count;
				fixed4 col = tex_colors[tex_index] * i.color;;
				return col;
			}
			ENDCG
		}
	}
}