|  | 
| template<typename T , template< typename > class vecType> | 
| T | perlin (vecType< T > const &p) | 
|  | 
| template<typename T , template< typename > class vecType> | 
| T | perlin (vecType< T > const &p, vecType< T > const &rep) | 
|  | 
| template<typename T , template< typename > class vecType> | 
| T | simplex (vecType< T > const &p) | 
|  | 
Defines 2D, 3D and 4D procedural noise functions Based on the work of Stefan Gustavson and Ashima Arts on "webgl-noise": https://github.com/ashima/webgl-noise Following Stefan Gustavson's paper "Simplex noise demystified": http://www.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf <glm/gtc/noise.hpp> need to be included to use these functionalities. 
      
        
          | T glm::perlin | ( | vecType< T > const & | p | ) |  | 
      
 
 
      
        
          | T glm::perlin | ( | vecType< T > const & | p, | 
        
          |  |  | vecType< T > const & | rep | 
        
          |  | ) |  |  | 
      
 
 
      
        
          | T glm::simplex | ( | vecType< T > const & | p | ) |  |