// geotexture
      _GeoTex("Gradient", 2D) = "white" {}
      _GeoNormal("Normal", 2D) = "bump" {}
      _GeoSlopeTex("GeoSlopeTex", 2D) = "white" {}
      _GeoNormalStrength("Str", Range(0.01, 1.5)) = 1
      _GeoParams("Blend/World Scale/Offset", Vector) = (1, 0.01, 0.0, 0.0)
      _GeoRange("Blend fade params", Vector) = (0, 0, 0, 0) 
      _GeoCurveParams("Geo Curve Scale/Offset/Rotation", Vector) = (512, 0, 0, 0)
      _GeoCurve("Geo Curve", 2D) = "white" {}
      _GeoHeightContrast("Geo Height Contrast", Float) = 10