StencilLightURP.shader

Shader "Custom/StencilLight Color"
{
    Properties
    {
        [HDR]_Color("Color",Color) = (1,1,1,1)
    }
    HLSLINCLUDE

    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
    struct appdata
    {
        float4 vertex : POSITION;
    };

    struct v2f
    {
        float4 vertex : SV_POSITION;
    };



    v2f vert(appdata v)
    {
        v2f o;
        o.vertex = TransformObjectToHClip(v.vertex.xyz);
        return o;
    }

    CBUFFER_START(UnityPerMaterial)
        float4 _Color;
    CBUFFER_END

    float4 frag(v2f i) : SV_Target
    {
        return _Color * _Color.a;
    }
    ENDHLSL

    SubShader
    {
        Tags{"Queue" = "Transparent" "RenderType" = "Transparent"}
        Pass
        {
            Tags
            {
                "RenderType" = "Transparent"
                "RenderPipeline" = "UniversalPipeline"
            }
            Zwrite off
            Ztest Lequal
            Cull Back
            Blend DstColor One

            Stencil
            {
                comp equal
                ref 1
                pass zero
                fail zero
                zfail zero
            }
            HLSLPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            ENDHLSL
        }
        Pass
        {
            Tags
            {
                "RenderPipeline" = "UniversalPipeline"
                "LightMode" = "UniversalForward"
            }
            ZTest always
            ZWrite off
            Cull Front
            Blend DstColor One

            Stencil
            {
                Ref 1
                Comp equal
                Pass Zero
                fail zero
                Zfail zero
            }
            HLSLPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            ENDHLSL
        }
    }
}