gluPerspective was removed in OpenGL 3.1, any replacements?

Question

I\'m trying to read some OpenGL tutorials on the net. the problem is that I found some old ones that use gluPerspective(). gluPerspective was deprecated in Open

Answer 1

Use GLM.

glm::mat4 projection = glm::perspective(
  // FOV & aspect
  60.0f, 16.0f / 10.0f, 
  // Near and far planes
  0.001f, 1000f);

// If you're using the now deprecated matrix stacks
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(glm::value_ptr(projection));

// if you're using the new shader based pipelines
GLint projectionUniformLocation = ...;
glUniformMatrix4fv(projectionUniformLocation, 1, GL_FALSE, 
  glm::value_ptr(projection));

Note, if you have GLM_FORCE_RADIANS defined then you should use radians in the perspective function, not degrees...

glm::mat4 projection = glm::perspective(
  // FOV & aspect
  PI / 3.0f, 16.0f / 10.0f, 
  // Near and far planes
  0.001f, 1000f);