Shader "MY/Clipper"
{
	SubShader
	{
		Tags{ "RenderType" = "Transparent" }

		CGINCLUDE
		struct appdata
		{
			float4 vertex : POSITION;
		};
		struct v2f
		{
			float4 pos : SV_POSITION;
		};
		v2f vert(appdata v)
		{
			v2f o;
			o.pos = UnityObjectToClipPos(v.vertex);
			return o;
		}
		half4 frag(v2f i) : SV_Target
		{
			return half4(1,1,0,1);
		}
		ENDCG

		Pass
		{
			ColorMask 0
			ZWrite Off

			Stencil
			{
				Ref 1
				Comp Always
				Pass Replace
			}
			CGPROGRAM
			#pragma vertex vert  
			#pragma fragment frag  
			ENDCG
		}
	}
}