Unity Silhouette Shader

Shader "Custom/SilhouetteShader"
{
	Properties
	{
		_SilhouetteColor("Silhouette Color", Color) = (0,1,0,1)
	}

	SubShader
	{
		Tags{"Queue"="Geometry+1" "RenderType" = "Geometry"}
        LOD 300

		Pass
		{
       Stencil {
         Ref 5
         Comp equal
         Pass replace
       }

			Cull Off
			ZWrite Off
			ZTest Greater
			Lighting Off

			Blend SrcAlpha OneMinusSrcAlpha

			HLSLPROGRAM
      // Required to compile gles 2.0 with standard srp library
      #pragma prefer_hlslcc gles
      #pragma exclude_renderers d3d11_9x
      #pragma target 2.0

			#include "LWRP/ShaderLibrary/Lighting.hlsl"

      #pragma vertex vert
			#pragma fragment frag

			float4 _SilhouetteColor;

			struct VertexInput {
				float4 vertex : POSITION;
			};

			struct VertexOutput {
				float4 pos : SV_POSITION;
			};

			VertexOutput vert (VertexInput v) {
				VertexOutput o;

				float3 posWS = TransformObjectToWorld(v.vertex.xyz);
				o.pos = TransformWorldToHClip(posWS);

				return o;
			}

			half4 frag(VertexOutput i) : COLOR {
				half4 color = _SilhouetteColor;
				return color;
			}

            ENDHLSL
		}
	}

	FallBack "Hidden/InternalErrorShader"
}

Shader "Custom/ObstacleShader"
{
	Properties
	{
		[...]
	}
	
	SubShader
	{        
      Pass
      {
          Stencil
          {
            Ref 5
            Comp Always
            Pass Replace
          }

          [...]

          ENDHLSL
      }
}