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I've spent *years* researching 3D Platformer Cameras in hopes of making Slime 64's camera "not terrible." In this thread, the White Cylinder is the Camera Target (slightly above the player!), and the Orange Cones represent the "vertical dead zone" where the camera won't follow player movement.

When airborne we raycast down to see if the player is near any ground. If they are, and the grounded camera position would be *higher* than its current position, it ascends to match. Notice how the camera doesn't descend when going downhill. This prevents undesired "dips", as seen in Yooka-Laylee.

However, these systems aren't enough on their own. Player action should always inform camera behavior. When the player double jumps, they have indicated they want more height. We snap the camera's vertical target to match where they performed the double jump, and then resume normal behavior.

Similarly, we have a limited-range flight ability. Since we expect more vertical gameplay while using this power, we make the camera target more aggressively lerp towards the player's vertical position, essentially bypassing the deadzone. Note the difference between an air jump and a normal jump.