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  // Copyright (c) 2013-2016 NVIDIA Corporation. All rights reserved.
  
  #pragma once
  
  #include <stdint.h>
  // 2d and 3d signed distance field computation using fast marching method (FMM), output array
  // should be the same size as input, non-zero input pixels will have distance < 0.0f, resulting 
  // distance is scaled by 1 / max(dimension)
  void MakeSDF(const uint32_t* input, uint32_t width, uint32_t height, float* output);
  void MakeSDF(const uint32_t* input, uint32_t width, uint32_t height, uint32_t depth, float* output);
  