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Question by nekropantz · Nov 07, 2021 at 09:28 PM · shaderspritespriterendererdepth-buffer

How do I write a cutout sprite shader to depth depthtexture ?

Hi!

Tearing my hair out while trying to write only the nontransparent pixels to the depth buffer. I think the issue is that it is using "Legacy Shaders/VertexLit/SHADOWCASTER" for the depth pass but I cannot find a fragment equivalent.


The issue:

alt text


My Shader

 // Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
 
 Shader "Sprites/DefaultWithDepth"
 {
     Properties
     {
         [PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
         _Color ("Tint", Color) = (1,1,1,1)
         [MaterialToggle] PixelSnap ("Pixel snap", Float) = 0
     }
 
     SubShader
     {
         Tags
         { 
             "Queue"="AlphaTest" 
             "IgnoreProjector"="True" 
             "RenderType"="TransparentCutout" 
             "PreviewType"="Plane"
             "CanUseSpriteAtlas"="True"
         }
 
         Cull Off
         Lighting Off
         Blend One OneMinusSrcAlpha
 
         Pass
         {
         CGPROGRAM
             #pragma vertex vert
             #pragma fragment frag
             #pragma multi_compile _ PIXELSNAP_ON
             #include "UnityCG.cginc"
             
             struct appdata_t
             {
                 float4 vertex   : POSITION;
                 float4 color    : COLOR;
                 float2 texcoord : TEXCOORD0;
             };
 
             struct v2f
             {
                 float4 vertex   : SV_POSITION;
                 fixed4 color    : COLOR;
                 half2 texcoord  : TEXCOORD0;
             };
             
             fixed4 _Color;
 
             v2f vert(appdata_t IN)
             {
                 v2f OUT;
                 OUT.vertex = UnityObjectToClipPos(IN.vertex);
                 OUT.texcoord = IN.texcoord;
                 OUT.color = IN.color * _Color;
                 #ifdef PIXELSNAP_ON
                 OUT.vertex = UnityPixelSnap (OUT.vertex);
                 #endif
 
                 return OUT;
             }
 
             sampler2D _MainTex;
 
             fixed4 frag(v2f IN) : SV_Target
             {
                 fixed4 c = tex2D(_MainTex, IN.texcoord) * IN.color;
                 c.rgb *= c.a;
                 clip(c.a - 0.5);
                 return c;
             }
         ENDCG
         }
 
         UsePass "Legacy Shaders/VertexLit/SHADOWCASTER"
     }
 }
 






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