Tuesday, May 27, 2025

17_D04_H02_02 All New Cine Cam RIg Rail in Unreal Engine 5.6 and using C...


Session 17 Summary: Cine Camera Rig Rail in UE 5.6

🚀 Setup

  • Opened existing camera_settings project from previous session.

  • Continued from camera_rig_shot_root sequence.

  • Began editing third shot (shot_030_01) using Cine Camera Rig Rail (advanced version).


🔧 Creating the Circular Camera Rig

  • Added Cine Camera Rig Rail from CinematicCine Camera Rig Rail.

  • Switched to top orthographic view.

  • Created a perfect 360° circular dolly path:

    • Measured 190 cm radius using middle mouse drag.

    • Placed 5 spline points in a circle using Alt + drag.

  • Used spline tangent controls in Rails Plane Component to smooth out the curve.

  • Ensured uniform speed using the Display Speed Heat Map (green = optimal speed).


🎥 Attaching & Configuring the Camera

  • Duplicated wide_camera, renamed to cine_cam_rig_3.

  • Attached camera to rig_3 and reset its transform.

  • Set focal length = 35mm (can later animate per spline).

  • Enabled rig control of focal length, aperture, and focus (instead of camera).

  • Placed both rig and camera into the sequence and camera folder.


🔁 Controlling the Camera Movement

  • Switched from manual movement to absolute spline position control:

    • Added keyframes at absolute position 1 (start) and 5 (end) over 10 seconds.

  • Enabled “Use Point Orientation” so the camera rotates along the rail path.

  • Rotated camera 90° so it always faces inward toward actor.


🎛️ Using Drive Mode (Alternative)

  • Enabled Drive Mode → Duration to auto-animate based on time.

  • Demonstrated changing speed via duration or speed %.

  • Later reverted to manual keyframing for full control.


🎚️ Focal Length & Aperture Animation by Spline Point

  • Adjusted focal length per spline:

    • Spline 0: 15mm (wide)

    • Spline 1–2: 30mm

    • Spline 3: 15mm

    • Spline 4: 50mm → revised to 30mm for smoother transition

  • Adjusted aperture per spline to improve exposure:

    • Set all points to f/1.4 for brighter visuals.


🎯 Focus Tracking with a Helper Actor

  • Added "rig3_tracker" actor to guide camera focus during movement.

  • Placed tracker at key locations (between characters, face, etc.) over time.

  • Animated the tracker’s position and enabled it in camera’s Focus Tracking.


Final Composition Check

  • Verified:

    • Smooth dolly movement

    • Dynamic focal length changes

    • Focus tracking accuracy

    • Proper brightness/exposure throughout shot

  • Saved all changes and concluded third rig-based camera shot.


🛠️ Key Features Demonstrated

  • Cine Camera Rig Rail with multiple spline points.

  • Spline-level focal length and aperture control.

  • Drive Mode vs. Manual Animation.

  • Tracker-based camera focus with smooth interpolation.

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