glmlookAt
glmlookAt refers to the GLM library’s lookAt function, a utility that generates a view matrix for a camera in 3D OpenGL applications. It is the GLM equivalent of the legacy gluLookAt, returning a 4x4 matrix that transforms world coordinates into camera space. The function is commonly used to establish the camera’s position and orientation before rendering.
The function signature in typical usage is glm::mat4 lookAt(glm::vec3 eye, glm::vec3 center, glm::vec3 up). It takes
Common caveats include: eye equals center yields an undefined view matrix; up must not be parallel to