The Key to Cleaner 3D Scans: Cross-Polarization
Today’s tutorial teaches you everything you need to know about Cross-Polarization. The necessary hardware/gear, and why it matters. It is absolutely essential if you’re trying to scan an object that has a very shiny/reflective surface. Taking a look at the renders in Unreal Engine 5, it doesn’t take long to see the vast difference between the two approaches, the cross-polarized result is FAR superior. The scans done in this tutorial were made with RealityCapture.
GET 50% off your purchase of 3500 PPI credits for RealityCapture using "WILLIAM50" as your discount code!
For more information on RealityCapture:
www.capturingreality.com
Important links:
Intro to RealityCapture to UE5 Workflow Video: • RealityCapture to UE5 - Workflow Tuto...
Scanning all sides of objects in Reality Capture: • How to 3D Scan All Sides of Objects -...
MAJOR THANKS to Grzegorz Baran for his in-depth guides and insights on photogrammetry. Find his channel and video I referred to here:
Grzegorz Baran’s Cross-Polarization Explained: • Cross Polarisation Explained by Grzeg...
Grzegorz Baran’s Channel: / grzegorzbaranart
Necessary gear for Photogrammetry:
Flashes:
Godox AR400 Ring Flash: https://geni.us/83IB0V
Elinchrom ELB 500 TTL Duo: https://geni.us/ElinchromELB500
Polarizing Filters:
Tiffen Circular Polarizing Filter: https://geni.us/XB38L
Nikon Circular Polarizing Filter: https://geni.us/acILA1z
Ring Flash Polarizer: https://geni.us/FlashPolarize
Transmitters and Other:
ColorChecker Passport Photo II: https://geni.us/tUEDhx
Godox XT-16 Transmitter/Receiver Kit: https://geni.us/7icY2
Flash Sync Cable: https://geni.us/DlZ63
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Timestamps:
00:00 - Intro
01:00 - CapturingReality
01:30 - What is Cross-Polarization?
03:39 - Polarization Explanation
04:46 - Necessary Gear/Hardware
05:56 - Gear: Polarizers
07:49 - Gear: ColorChart
08:07 - Gear: Transmitters
08:53 - Assembling the Camera Rig
09:12 - Why do we need this?
10:21 - Important Steps Before Shooting
11:47 - Scanning
12:28 - Into RealityCapture
13:36 - Limitations of Cross-Polarization
14:53 - Conclusion & Thanks
--------Cameras and Gear Used To Film This Video ------
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My Streaming / Recording Setup (How this Video was Recorded)
Nikon Z6II : https://geni.us/OPxBG
Sigma 35mm f/1.4 Art : https://geni.us/ByMa
Deity S-Mic 2 Shotgun Microphone: https://geni.us/ed6pyO
Aputure MC Pocket LED: https://geni.us/uVZNl
Godox LEDP 260c LED Panel: https://geni.us/OgidwX
Godox Parabolic Softbox : https://geni.us/oHZ2b9
Godox SL-60W Studio Light: https://geni.us/68wx
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