Shader "MY/SkyboxV1"
{
	Properties
	{
		_Color("Main Color", Color) = (0,0,0,1)
		_MainTex("Texture", 2D) = "white" {}
		_Brightness("Brightness", Range(0,5)) = 1
	}

		SubShader
		{
			Tags { "Queue" = "Background" "RenderType" = "Background" "PreviewType" = "Skybox" }
			ZWrite Off
			LOD 100

			Pass
			{
				CGPROGRAM
				#pragma vertex vert
				#pragma fragment frag

				#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;
				fixed4 _Color;
				half _Brightness;

				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);
					col.rgb *= _Color.rgb * _Brightness;
					col.a = 1.0;
					return col;
				}
				ENDCG
			}
		}
}