1. OpenGL Mathematics (GLM)

• OpenGL Mathematics (GLM) is a C++ mathematics library based on the OpenGL Shading Language (GLSL) specification.

• GLM emulates GLSL's approach to vector/matrix operations whenever possible.

• To use GLM, include glm/glm.hpp. Example from GLM manual:

  
  #include <glm/glm.hpp>
  
  int foo()
  {
      glm::vec4 Position = glm::vec4( glm::vec3( 0.0 ), 1.0 );
      glm::mat4 Model = glm::mat4( 1.0 );
      Model[3] = glm::vec4( 1.0, 1.0, 0.0, 1.0 );
      glm::vec4 Transformed = Model * Position;
      return 0;
  }