Shader "MoreMountains/MMWorldspace" 
{
  Properties 
  {
    _Color ("Main Color", Color) = (1,1,1,1)
    _MainTex ("Base (RGB)", 2D) = "white" {}
    _Scale ("Texture Scale", Float) = 1.0
  }

  SubShader 
  {
    Tags { "RenderType"="Opaque" }
    LOD 200

    CGPROGRAM
    #pragma surface surf Lambert

    sampler2D _MainTex;
    fixed4 _Color;
    float _Scale;

    struct Input
    {
      float3 worldNormal;
      float3 worldPos;
    };

    void surf (Input IN, inout SurfaceOutput o)
    {
      float2 UV;
      fixed4 c;

      if(abs(IN.worldNormal.x)>0.5)
      {
        UV = IN.worldPos.yz; // side
        c = tex2D(_MainTex, UV* _Scale); // use WALLSIDE texture
      }
      else if(abs(IN.worldNormal.z)>0.5)
      {
        UV = IN.worldPos.xy; // front
        c = tex2D(_MainTex, UV* _Scale); // use WALL texture
      }
      else
      {
        UV = IN.worldPos.xz; // top
        c = tex2D(_MainTex, UV* _Scale); // use FLR texture
      }

      o.Albedo = c.rgb * _Color;
    }
    ENDCG
  }

  Fallback "VertexLit"
}