Function Spatial.lookAt

Rotates itself so that the local -Z axis points towards the target position. The transform will first be rotated around the given up vector, and then fully aligned to the target by a further rotation around an axis perpendicular to both the target and up vectors. Operations take place in global space.

void lookAt (
  const(Vector3) target,
  const(Vector3) up
) nothrow @nogc;