World Space Diffuse Shader with Normal Map

Unity Engine
1

Trying to create one.

Using the following working world coordinate diffuse shader:

Shader "Custom/WorldCoord Diffuse" {
Properties {
    _Color ("Main Color", Color) = (1,1,1,1)
    _MainTex ("Base (RGB)", 2D) = "white" {}
    _BaseScale ("Base Tiling", Vector) = (1,1,1,0)
}
SubShader {
    Tags { "RenderType"="Opaque" }
    LOD 150
CGPROGRAM
#pragma surface surf Lambert
sampler2D _MainTex;
fixed4 _Color;
fixed3 _BaseScale;
struct Input{
    float2 uv_MainTex;
    float3 worldPos;
    float3 worldNormal;
};
void surf(Input IN,inout SurfaceOutput o) {
    fixed4 texXY=tex2D(_MainTex,IN.worldPos.xy*_BaseScale.z);//IN.uv_MainTex);
    fixed4 texXZ=tex2D(_MainTex,IN.worldPos.xz*_BaseScale.y);//IN.uv_MainTex);
    fixed4 texYZ=tex2D(_MainTex,IN.worldPos.yz*_BaseScale.x);//IN.uv_MainTex);
    fixed3 mask=fixed3(
        dot(IN.worldNormal,fixed3(0,0,1)),
        dot(IN.worldNormal,fixed3(0,1,0)),
        dot(IN.worldNormal,fixed3(1,0,0)));
    fixed4 tex=
        texXY*abs(mask.x)+
        texXZ*abs(mask.y)+
        texYZ*abs(mask.z);
    fixed4 c=tex*_Color;
    o.Albedo=c.rgb;
}
ENDCG
}
FallBack "Diffuse"
}

Trying to add a normal texture channel.

My attempt thus far, combining the above with simple normal textures:

    Shader "Legacy Shaders/Diffuse - Worldspace"{
       Properties{
           _Color("Main Color",Color)=(1,1,1,1)
           _MainTex("Base (RGB)",2D)="white"{}
           _NormTex("Normal (RGB)",2D)="bump"{}
           _Scale("Texture Scale",Vector)=(1.0,1.0,0,0)
           _BumpInfluence("Bump Influence",Float)=1.0
       }
       SubShader{
           Tags{"RenderType"="Opaque"}
           LOD 200
           CGPROGRAM
               #pragma surface surf Lambert
               sampler2D _MainTex;
               sampler2D _NormTex;
               fixed4 _Color;
               float4 _Scale;
               float _BumpInfluence/*,_Dimension*/;
               struct Input{
                   float3 worldNormal;
                   float3 worldPos;
                   float2 uv_MainTex;
                   float2 uv_NormTex;
                   INTERNAL_DATA
               };
               void surf(Input IN,inout SurfaceOutput o){
                   fixed4 texXY = tex2D(_MainTex, IN.worldPos.xy * _Scale.z);//IN.uv_MainTex);
                   fixed4 texXZ = tex2D(_MainTex, IN.worldPos.xz * _Scale.y);//IN.uv_MainTex);
                   fixed4 texYZ = tex2D(_MainTex, IN.worldPos.yz * _Scale.x);//IN.uv_MainTex);
                   fixed3 mask = fixed3(
                       dot(IN.worldNormal, fixed3(0, 0, 1)),
                       dot(IN.worldNormal, fixed3(0, 1, 0)),
                       dot(IN.worldNormal, fixed3(1, 0, 0)));
                   fixed4 tex =
                       texXY * abs(mask.x) +
                       texXZ * abs(mask.y) +
                       texYZ * abs(mask.z);
                   fixed4 c = tex * _Color;
                   o.Albedo = c.rgb;
  
                   texXY = tex2D(_NormTex, IN.worldPos.xy * _Scale.z);//IN.uv_MainTex);
                   texXZ = tex2D(_NormTex, IN.worldPos.xz * _Scale.y);//IN.uv_MainTex);
                   texYZ = tex2D(_NormTex, IN.worldPos.yz * _Scale.x);//IN.uv_MainTex);
                   mask = fixed3(
                       dot(IN.worldNormal, fixed3(0, 0, 1)),
                       dot(IN.worldNormal, fixed3(0, 1, 0)),
                       dot(IN.worldNormal, fixed3(1, 0, 0)));
                   tex =
                       texXY * abs(mask.x) +
                       texXZ * abs(mask.y) +
                       texYZ * abs(mask.z);
               }
           ENDCG
       }
       Fallback "Legacy Shaders/VertexLit"
    }

Turns the whole thing black, no matter the value of “_BumpInfluence”.

Know where it’s gone awry?

Thanks.

2