In this comprehensive tutorial we take a look at all the important steps to use camtrackAR (available on iPhones only) for 3D tracking but combine that with the shots from our hybrid or cinema camera for a much higher quality result to achieve a much more cinematic look. This tutorial covers everything from the camera rig to mount your iPhone to your camera, how to prepare a shoot, best practices and then of course how to import the tracking data into Unreal Engine 5. Another important step is to build a virtual camera rig with a custom camera that is emulating your real world cinema camera. Finally we render the animation from UE5 and combine / sync it with our live action footage shot on a greenscreen in Adobe After Effects to produce the final shot. This is the poor mans version of virtual production on a greenscreen. If you have an iPhone and a good camera, you are like 80% there already with this method.
We also cover required gear, sensor sizes, crop factors and usesage of speedboosters for this method if you are using something like a BMD pocket cinema camera 4k with a metabones speedbooster.
The biggest advantage of this method is that you can basically shoot anywhere, inside and outside and cover large areas of camera movements with very little setup time.
Please excuse the robotic AI voice, I'm not used to speak fast and fluent English, so I opted for this method to get a lot of information clearly across in a small amount of time. If you want to have a method for markerless tracking on a greenscreen and don't want to spend tons of money for a full VR gear setup and studio space, a high end PC to record in UE5 in realtime etc. this method will give you a great low cost alternative with quite good results. If you need to look up a specific step again, there are chapter markers to directly jump to any of the important steps.

00:00 Intro
00:32 What is the aim of this tutorial?
01:40 Why not just use the iphone?
02:06 Use the full version of camtrackAR
02:35 The pros and cons of this method
03:26 Preparing the shoot What do we need?
03:54 Preparing the shoot Placement of the iphone
04:48 Preparing the shoot Image stabilization
05:17 Preparing the shoot Shoulder rigs VS gimbals
05:40 Preparing the shoot Things to consider for gimbals
05:59 Preparing the shoot Match date/time between cameras
06:11 Preparing the shoot Prepare area you are filming in
06:28 Shooting the scene set up camtrackAR
07:05 Shooting the scene Start the recording
07:20 Shooting the scene Create a sync reference
07:43 Shooting the scene Film your shot
08:13 Preapring the data for unreal engine
08:49 Unreal Engine 5 Setting up the camera
13:22 Unreal Engine 5 Match render cam with live action cam
14:54 Unreal Engine 5 Focal length when using a speedbooster
15:44 Unreal Engine 5 Aspect ratio
16:07 Unreal Engine 5 Placing the camera in the scene
17:04 Unreal Engine 5 Preparing to render
17:48 Unreal Engine 5 Movie render queue settings
18:24 Unreal Engine 5 Render the animation
18:42 After Effects Setting up the composition
19:10 After Effects Finding the sync point
19:44 After Effects Import and prepare animation
21:16 Unreal Engine Bonus Tip Autofocus
21:55 After Effects Finalizing the shot
22:28 Some ideas for your future project
23:04 Conclusion

#unrealengine #camtrackar #cinemacamera