// cpt-city: jm/ad/ad-a (cpt)
//
// Abysmal Deep
//
// From teal colored shallows through darker and darker blues
// until all detail is lost in the black stygian depths.
//
// author: Jim Mossman
// copyright: Attribution required
// year: 2005
// url: https://phillips.shef.ac.uk/pub/cpt-city/jm/ad
#declare ad_a =
color_map {
  [-0.00000 color rgbf <0.4510,1.0000,0.8510,0.0000>]
  [0.01695 color rgbf <0.4510,1.0000,0.8510,0.0000>]
  [0.01695 color rgbf <0.4510,1.0000,0.8784,0.0000>]
  [0.03390 color rgbf <0.4510,1.0000,0.8784,0.0000>]
  [0.03390 color rgbf <0.4510,1.0000,0.9098,0.0000>]
  [0.05085 color rgbf <0.4510,1.0000,0.9098,0.0000>]
  [0.05085 color rgbf <0.4510,1.0000,0.9412,0.0000>]
  [0.06780 color rgbf <0.4510,1.0000,0.9412,0.0000>]
  [0.06780 color rgbf <0.4510,1.0000,0.9686,0.0000>]
  [0.08475 color rgbf <0.4510,1.0000,0.9686,0.0000>]
  [0.08475 color rgbf <0.4510,1.0000,1.0000,0.0000>]
  [0.10169 color rgbf <0.4510,1.0000,1.0000,0.0000>]
  [0.10169 color rgbf <0.4667,0.9686,1.0000,0.0000>]
  [0.11864 color rgbf <0.4667,0.9686,1.0000,0.0000>]
  [0.11864 color rgbf <0.4824,0.9412,1.0000,0.0000>]
  [0.13559 color rgbf <0.4824,0.9412,1.0000,0.0000>]
  [0.13559 color rgbf <0.4980,0.9098,1.0000,0.0000>]
  [0.15254 color rgbf <0.4980,0.9098,1.0000,0.0000>]
  [0.15254 color rgbf <0.4980,0.8824,1.0000,0.0000>]
  [0.16949 color rgbf <0.4980,0.8824,1.0000,0.0000>]
  [0.16949 color rgbf <0.4980,0.8549,1.0000,0.0000>]
  [0.18644 color rgbf <0.4980,0.8549,1.0000,0.0000>]
  [0.18644 color rgbf <0.4980,0.8275,1.0000,0.0000>]
  [0.20339 color rgbf <0.4980,0.8275,1.0000,0.0000>]
  [0.20339 color rgbf <0.4980,0.8000,1.0000,0.0000>]
  [0.22034 color rgbf <0.4980,0.8000,1.0000,0.0000>]
  [0.22034 color rgbf <0.4980,0.7725,1.0000,0.0000>]
  [0.23729 color rgbf <0.4980,0.7725,1.0000,0.0000>]
  [0.23729 color rgbf <0.4980,0.7451,1.0000,0.0000>]
  [0.25424 color rgbf <0.4980,0.7451,1.0000,0.0000>]
  [0.25424 color rgbf <0.4980,0.7176,1.0000,0.0000>]
  [0.27119 color rgbf <0.4980,0.7176,1.0000,0.0000>]
  [0.27119 color rgbf <0.4980,0.6902,1.0000,0.0000>]
  [0.28814 color rgbf <0.4980,0.6902,1.0000,0.0000>]
  [0.28814 color rgbf <0.4980,0.6627,1.0000,0.0000>]
  [0.30508 color rgbf <0.4980,0.6627,1.0000,0.0000>]
  [0.30508 color rgbf <0.4980,0.6353,1.0000,0.0000>]
  [0.32203 color rgbf <0.4980,0.6353,1.0000,0.0000>]
  [0.32203 color rgbf <0.4980,0.6235,1.0000,0.0000>]
  [0.33898 color rgbf <0.4980,0.6235,1.0000,0.0000>]
  [0.33898 color rgbf <0.4980,0.5961,1.0000,0.0000>]
  [0.35593 color rgbf <0.4980,0.5961,1.0000,0.0000>]
  [0.35593 color rgbf <0.4980,0.5843,1.0000,0.0000>]
  [0.37288 color rgbf <0.4980,0.5843,1.0000,0.0000>]
  [0.37288 color rgbf <0.4980,0.5529,1.0000,0.0000>]
  [0.38983 color rgbf <0.4980,0.5529,1.0000,0.0000>]
  [0.38983 color rgbf <0.4784,0.5333,0.9804,0.0000>]
  [0.40678 color rgbf <0.4784,0.5333,0.9804,0.0000>]
  [0.40678 color rgbf <0.4588,0.5137,0.9608,0.0000>]
  [0.42373 color rgbf <0.4588,0.5137,0.9608,0.0000>]
  [0.42373 color rgbf <0.4392,0.4941,0.9412,0.0000>]
  [0.44068 color rgbf <0.4392,0.4941,0.9412,0.0000>]
  [0.44068 color rgbf <0.4196,0.4745,0.9216,0.0000>]
  [0.45763 color rgbf <0.4196,0.4745,0.9216,0.0000>]
  [0.45763 color rgbf <0.4000,0.4549,0.9020,0.0000>]
  [0.47458 color rgbf <0.4000,0.4549,0.9020,0.0000>]
  [0.47458 color rgbf <0.3804,0.4353,0.8824,0.0000>]
  [0.49153 color rgbf <0.3804,0.4353,0.8824,0.0000>]
  [0.49153 color rgbf <0.3804,0.4353,0.8667,0.0000>]
  [0.50848 color rgbf <0.3804,0.4353,0.8667,0.0000>]
  [0.50848 color rgbf <0.3804,0.4353,0.8510,0.0000>]
  [0.52542 color rgbf <0.3804,0.4353,0.8510,0.0000>]
  [0.52542 color rgbf <0.3804,0.4353,0.8353,0.0000>]
  [0.54237 color rgbf <0.3804,0.4353,0.8353,0.0000>]
  [0.54237 color rgbf <0.3804,0.4353,0.8196,0.0000>]
  [0.55932 color rgbf <0.3804,0.4353,0.8196,0.0000>]
  [0.55932 color rgbf <0.3804,0.4353,0.8039,0.0000>]
  [0.57627 color rgbf <0.3804,0.4353,0.8039,0.0000>]
  [0.57627 color rgbf <0.3804,0.4353,0.7843,0.0000>]
  [0.59322 color rgbf <0.3804,0.4353,0.7843,0.0000>]
  [0.59322 color rgbf <0.3686,0.4235,0.7647,0.0000>]
  [0.61017 color rgbf <0.3686,0.4235,0.7647,0.0000>]
  [0.61017 color rgbf <0.3608,0.4157,0.7451,0.0000>]
  [0.62712 color rgbf <0.3608,0.4157,0.7451,0.0000>]
  [0.62712 color rgbf <0.3412,0.3961,0.7255,0.0000>]
  [0.64407 color rgbf <0.3412,0.3961,0.7255,0.0000>]
  [0.64407 color rgbf <0.3216,0.3765,0.7059,0.0000>]
  [0.66102 color rgbf <0.3216,0.3765,0.7059,0.0000>]
  [0.66102 color rgbf <0.3020,0.3569,0.6863,0.0000>]
  [0.67797 color rgbf <0.3020,0.3569,0.6863,0.0000>]
  [0.67797 color rgbf <0.2824,0.3373,0.6667,0.0000>]
  [0.69492 color rgbf <0.2824,0.3373,0.6667,0.0000>]
  [0.69492 color rgbf <0.2627,0.3176,0.6471,0.0000>]
  [0.71186 color rgbf <0.2627,0.3176,0.6471,0.0000>]
  [0.71186 color rgbf <0.2431,0.2980,0.6275,0.0000>]
  [0.72881 color rgbf <0.2431,0.2980,0.6275,0.0000>]
  [0.72881 color rgbf <0.2235,0.2784,0.6078,0.0000>]
  [0.74576 color rgbf <0.2235,0.2784,0.6078,0.0000>]
  [0.74576 color rgbf <0.2039,0.2588,0.5882,0.0000>]
  [0.76271 color rgbf <0.2039,0.2588,0.5882,0.0000>]
  [0.76271 color rgbf <0.1843,0.2392,0.5686,0.0000>]
  [0.77966 color rgbf <0.1843,0.2392,0.5686,0.0000>]
  [0.77966 color rgbf <0.1647,0.2196,0.5490,0.0000>]
  [0.79661 color rgbf <0.1647,0.2196,0.5490,0.0000>]
  [0.79661 color rgbf <0.1451,0.2000,0.5294,0.0000>]
  [0.81356 color rgbf <0.1451,0.2000,0.5294,0.0000>]
  [0.81356 color rgbf <0.1255,0.1804,0.5098,0.0000>]
  [0.83051 color rgbf <0.1255,0.1804,0.5098,0.0000>]
  [0.83051 color rgbf <0.1059,0.1608,0.4902,0.0000>]
  [0.84746 color rgbf <0.1059,0.1608,0.4902,0.0000>]
  [0.84746 color rgbf <0.0863,0.1412,0.4706,0.0000>]
  [0.86441 color rgbf <0.0863,0.1412,0.4706,0.0000>]
  [0.86441 color rgbf <0.0667,0.1216,0.4510,0.0000>]
  [0.88136 color rgbf <0.0667,0.1216,0.4510,0.0000>]
  [0.88136 color rgbf <0.0471,0.1020,0.4314,0.0000>]
  [0.89831 color rgbf <0.0471,0.1020,0.4314,0.0000>]
  [0.89831 color rgbf <0.0275,0.0431,0.4118,0.0000>]
  [0.91525 color rgbf <0.0275,0.0431,0.4118,0.0000>]
  [0.91525 color rgbf <0.0078,0.0235,0.3922,0.0000>]
  [0.93220 color rgbf <0.0078,0.0235,0.3922,0.0000>]
  [0.93220 color rgbf <0.0000,0.0039,0.3725,0.0000>]
  [0.94915 color rgbf <0.0000,0.0039,0.3725,0.0000>]
  [0.94915 color rgbf <0.0000,0.0000,0.3529,0.0000>]
  [0.96610 color rgbf <0.0000,0.0000,0.3529,0.0000>]
  [0.96610 color rgbf <0.0000,0.0000,0.3333,0.0000>]
  [0.98305 color rgbf <0.0000,0.0000,0.3333,0.0000>]
  [0.98305 color rgbf <0.0000,0.0000,0.3137,0.0000>]
  [1.00000 color rgbf <0.0000,0.0000,0.3137,0.0000>]
}