Function look_at_mat4 

pub fn look_at_mat4(eye: DVec3, center: DVec3, up: DVec3) -> DMat4

Returns a DMat4 view matrix from eye, focal point, and up.

Transforms right-handed world space points into right-handed Y-up view space.

Panics

Will panic if up is not normalized, if center is equal to eye, or if the view direction is parallel to up, when glam_assert is enabled.