BasicOcclusionShader.shader

Shader "Custom/BasicOcclusionShader" {
	Properties{
		_OcclusionColor("Color", Color) = (1, 0, 1, 1)
	}
	SubShader {	
		Tags{ "RenderType" = "Transparent" "Queue" = "Transparent" }
		Pass {
			Blend SrcAlpha OneMinusSrcAlpha
			ZTest Greater
			ZWrite Off
			LOD 200

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

				struct appdata_t
				{
					float4 vertex : POSITION;
				};

				struct v2f
				{
					float4 vertex  : SV_POSITION;
				};

				fixed4 _OcclusionColor;

				v2f vert(appdata_t IN)
				{
					v2f OUT;
					OUT.vertex = mul(UNITY_MATRIX_MVP, IN.vertex);
					return OUT;
				}

				fixed4 frag(v2f IN) : SV_Target
				{
					return _OcclusionColor;
				}
			ENDCG
		}
	} 
}