Shader "ZED/Planetarium/SaturnRings"
{
	Properties
	{
		_MainTex ("Texture", 2D) = "white" {}
	_Color("Color", Color) = (1,1,1,1)
	}
	SubShader
	{
		Cull Off
		Tags{ "RenderType" = "Transparent" "Queue" = "Transparent" }

		Blend SrcAlpha OneMinusSrcAlpha

		Pass
	{
		Stencil{
		Ref 148
		Comp Always
		Pass replace
	}
		
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			// make fog work
			#pragma multi_compile_fog
			
			#include "UnityCG.cginc"

			struct appdata
			{
				float4 vertex : POSITION;
				float2 uv : TEXCOORD0;
			};

			struct v2f
			{
				float2 uv : TEXCOORD0;
				float4 vertex : SV_POSITION;
			};

			sampler2D _MainTex;
			float4 _MainTex_ST;
			float4 _Color;
			v2f vert (appdata v)
			{
				v2f o;
				o.vertex = UnityObjectToClipPos(v.vertex);
				o.uv = TRANSFORM_TEX(v.uv, _MainTex);
				return o;
			}
			
			fixed4 frag (v2f i) : SV_Target
			{
				// sample the texture
				fixed4 col = tex2D(_MainTex, i.uv)*_Color;
				// apply fog
				return col;
			}
			ENDCG
		}
	}
}