//Very simple shader that displays a single color but with transparency and no depth testing. 
//Used on the colored cubes in the Simple Marker Placement sample. 
Shader "Unlit/UnlitTrans"
{
	Properties
	{
		_Color("Color", Color) = (1,1,1,1)
	}
	SubShader
	{
		Tags { "RenderType"="Transparent" "RenderQueue"="Transparent" }
		Blend SrcAlpha OneMinusSrcAlpha
		ZTest Always
		ZWrite Off

		Pass
		{
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			// make fog work
			#pragma multi_compile_fog
			
			#include "UnityCG.cginc"

			struct appdata
			{
				float4 vertex : POSITION;
			};

			struct v2f
			{
				UNITY_FOG_COORDS(1)
				float4 vertex : SV_POSITION;
			};
;
			
			v2f vert (appdata v)
			{
				v2f o;
				o.vertex = UnityObjectToClipPos(v.vertex);
				UNITY_TRANSFER_FOG(o,o.vertex);
				return o;
			}
			
			fixed4 _Color;

			fixed4 frag (v2f i) : SV_Target
			{
				fixed4 col = _Color;
				// apply fog
				UNITY_APPLY_FOG(i.fogCoord, col);
				return _Color;
			}
			ENDCG
		}
	}
}