Oskar questions

• Are callbacks in node.js either always asynchronous or always synchronous? Or can they be "sometimes one, sometimes the other"?
• How does near/far clipping planes in gluPerspective()/glm::perspective() work?
• In C++, if copying an object is possible, but really expensive and usually a bad idea, should you still implement copying using a copy constructor?
• Output range of Perlin noise

Oskar answers