Function targetTo

targetTo(
    out: mat4,
    eye: ReadonlyVec3,
    target: ReadonlyVec3,
    up: ReadonlyVec3,
): mat4
Generates a matrix that makes something look at something else.
Parameters
- out: mat4
  mat4 frustum matrix will be written into
- eye: ReadonlyVec3
  Position of the viewer
- target: ReadonlyVec3
  Point the viewer is looking at
- up: ReadonlyVec3
  vec3 pointing up
Returns mat4
out