Convert Oculus shader to URP

Hello everyone, I'm currently having an issue with Universial Render Pipeline. I am newbie to Shader and I need to have this Underlay Imposter shader from Oculus to create a hole that allows the underlay OVROverlay to show thorough.

It works nicely with Unity build in setup, but it turns into all pink after URP is enabled .I have tried to compare the code with URP Lit shader , but no luck so far.

Is there any way to make this shader work in URP?

Code (CSharp):

1. /*
2. This shader is used to render the impostor while clearing out the alpha of the eye buffer
3. The important details here are:
4. - the use of the Geometry+1 queue to make sure the impostor is drawn after all other opaque objects but before alpha
5. - the keepalpha parameter that allow unity to actually write the alpha we return at the end of the shader.
6. */
7.  
8. Shader "Oculus/Underlay Impostor" {
9.     Properties{
10.         _Color("Color", Color) = (1,1,1,1)
11.         _MainTex("Albedo (RGB)", 2D) = "white" {}
12.         _Glossiness("Smoothness", Range(0,1)) = 0.5
13.         _Metallic("Metallic", Range(0,1)) = 0.0
14.     }
15.         SubShader{
16.             Tags { "Queue" = "Geometry+1" "RenderType" = "Opaque" }
17.             LOD 200
18.  
19.             CGPROGRAM
20.             // Physically based Standard lighting model, and enable shadows on all light types
21.             #pragma surface surf Standard fullforwardshadows keepalpha
22.  
23.             // Use shader model 3.0 target, to get nicer looking lighting
24.             #pragma target 3.0
25.  
26.             sampler2D _MainTex;
27.  
28.             struct Input {
29.                 float2 uv_MainTex;
30.             };
31.  
32.             half _Glossiness;
33.             half _Metallic;
34.             fixed4 _Color;
35.  
36.             void surf(Input IN, inout SurfaceOutputStandard o) {
37.                 // Albedo comes from a texture tinted by color
38.                 fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
39.                 o.Albedo = c.rgb;
40.                 // Metallic and smoothness come from slider variables
41.                 o.Metallic = _Metallic;
42.                 o.Smoothness = _Glossiness;
43.                 o.Alpha = 0.f;
44.             }
45.             ENDCG
46.         }
47.             FallBack "Diffuse"
48. }
49.  

 

Has anyone found an answer to this problem ?

 

Hello,

I had the exact same problem as you

Try this shader :

Code (CSharp):

1. Shader "Unlit/NewUnlitShader"
2. {
3.     Properties
4.     {
5.         _MainTex ("Texture", 2D) = "white" {}
6.     }
7.     SubShader
8.     {
9.         Tags { "Queue" = "Transparent" "RenderType"="Opaque" }
10.         LOD 200
11.  
12.         Pass
13.         {
14.             CGPROGRAM
15.             #pragma vertex vert
16.             #pragma fragment frag
17.  
18.             #include "UnityCG.cginc"
19.  
20.             struct appdata
21.             {
22.                 float4 vertex : POSITION;
23.                 float2 uv : TEXCOORD0;
24.             };
25.  
26.             struct v2f
27.             {
28.                 float2 uv : TEXCOORD0;
29.                 float4 vertex : SV_POSITION;
30.             };
31.  
32.             sampler2D _MainTex;
33.             float4 _MainTex_ST;
34.  
35.             v2f vert (appdata v)
36.             {
37.                 v2f o;
38.                 o.vertex = UnityObjectToClipPos(v.vertex);
39.                 o.uv = TRANSFORM_TEX(v.uv, _MainTex);
40.                 return o;
41.             }
42.  
43.             fixed4 frag (v2f i) : SV_Target
44.             {
45.                 return 0;
46.             }
47.             ENDCG
48.         }
49.     }
50. }
51.  

 

didn't work
does anyone fix that