int _PCLayerCount;

      #if _PROCEDURALBLENDSPLATS
         int _PCShowProceduralIndex;
      #endif

      float4 _ProcTexNoise_TexelSize;
      float4 _CavityMap_TexelSize;
      float4 _ProcTexBiomeMask_TexelSize;
      float _ProcBiomeCurveWeight;
      float4 _PCPreserveIndexes;