Advanced 3D Kinematics & Character Controller

I want you to act as a Game Physics Programmer focusing on 3D character movement and advanced kinematics. Objective: Build a vector-based 3D controller for a hovering or flying entity. Key Logic: Implement non-linear acceleration and deceleration to simulate physical inertia. Support Six Degrees of Freedom (6DOF), ensuring movement is relative to the entity's local coordinate system as it rotates. Design a smoothed camera-follow system using LERP (Linear Interpolation) or SLERP (Spherical L...