doc/api/a00293_source.html

 #pragma once
 #include "../detail/type_vec3.hpp"

 namespace glm
 {

     typedef vec<3, double, highp>       highp_dvec3;

     typedef vec<3, double, mediump>     mediump_dvec3;

     typedef vec<3, double, lowp>        lowp_dvec3;

 }//namespace glm
glm::mediump_dvec3
vec< 3, double, mediump > mediump_dvec3
3 components vector of medium double-qualifier floating-point numbers.
Definition: vector_double3_precision.hpp:24

glm::lowp_dvec3
vec< 3, double, lowp > lowp_dvec3
3 components vector of low double-qualifier floating-point numbers.
Definition: vector_double3_precision.hpp:31

glm::highp_dvec3
vec< 3, double, highp > highp_dvec3
3 components vector of high double-qualifier floating-point numbers.
Definition: vector_double3_precision.hpp:17

glm
Definition: common.hpp:20