Unreal 4.27 built in lens calibrator tutorial, great results with less work!

Get your lens distortion, find the entrance pupil and the tracker offset all in a tool built into UE 4.27! You need 2 Vive trackers, no measuring guessing required to get a good solid result! This covers some things that weren't in the unreal docs or were confusing.

You can display the calibration checkerboard on a monitor or tablet if you don't have a printer!

Only downside is sometimes the entrance pupil/offset finder will give you weird results but if you repeat the process it will eventually come out right. "bad" results are usually off by a huge amount so they are easy to spot.

Here is the link to the glassmark/indiemark video that shows how to do this if you have a lens encoder.    • Unreal Lens Distortion Mapping with I...  

Please let me know how it works for you!

00:00 Intro to Unreal 4.27 Lens Calibrator
00:46 Create Calibrator Project
01:45 What's missing fom the Unreal Docs
02:00 Setup Media Bundle
03:22 Setup Scene for Calibration
03:50 Choose the right tracker!
04:40 Camera setup
06:20 Setup LiveLink camera tracker
07:30 Setup FIZ (focus, iris, zoom) blueprint
11:20 Create Lens File
11:44 More LiveLink Camera and tracker setup
12:50 Add Camera Calibration Checkerboard
14:30 Add Lens Information
15:13 Setup Lens Encoder Curves
17:02 Capture Lens Calibration Images
20:20 Calibrate Entrance Pupil and Tracker Offset
23:42 It may not work the first time
25:10 If it's not right, repeat till it is
25:33 How it looks when it works
26:34 How distortion is applied
27:14 Files we created
27:35 Calibrating a Zoom
28:50 Transfer files to other projects
29:34 Review of what we did

To see a lot of the tools and gadgets I use all in one place, check out my page on Amazon. Check back often as I'm still building the page. As an amazon affiliate I earn a little money to support the channel if you order from these amazon links, there is no extra cost to you. Some things may be cheaper in local stores.

https://www.amazon.com/shop/gregcorson

The latest release of my virtual production sample project will always be available here https://github.com/MiloMindbender/UE4...

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