Logo Logo
deutsch
directory schraeg
Knowledge
Codecs
Hardware
Camcorders· Cinema-Kamera· Computers· Drohnen· GPU· Kamera-Zubehör· Video-DSLR· accessories
Software
Compositing· Color correction· DV Editing
DV-Movies

HowTo
Shooting· Sound
Misc
Forschung· KI· Reviews· Streaming
/// News
Avatar 2 - free diving stars and motion capturing underwater

Avatar 2 - free diving stars and motion capturing underwater

[14:55 Tue,20.December 2022   by ]    

James Cameron's Avatar 2 - The Way of the Water has recently opened in theaters, after thirteen years of waiting. As exciting as the continuation of the Na'vi saga, which is mainly set in the digitally created world of Pandora, is the creation of this remarkable production: a large part of the film takes place under water and the corresponding sequences were actually shot under water. Wet-for-wet is the name of this approach in English, instead of the usual dry-for-wet, when actors hang from ropes and make swimming movements in dry water.




The latter was used for a shorter scene in the first Avatar movie, but Cameron felt the result didn't look convincing enough for the long sequences planned this time around. Underwater movements simply look different, and the actors also needed to experience the medium of water firsthand in order to give a believable performance. For this purpose, a tank measuring 36m x 18m and 9m deep was specially constructed, in which even ocean currents could be simulated.

avatar2_BTS3
Avatar 2 - The Way of the Water, BTS


Now, however, the actors themselves are again not seen in the film, but they are retrofitted into their blue Na'vi characters via CGI (and even as a preview on set in a Virtual Camera). Using motion or performance capture, the movements and facial expressions of the real people were once again transferred to the computer-generated characters. But how can facial expressions be captured by the small cameras strapped to the head when a diving mask covers the face? After all, the Na'vi swim without extra oxygen.

avatar2_BTS2
Avatar 2 - The Way of the Water, BTS


And so the actors were specially taught free diving for the shoot and learned to hold their breath for several minutes - Kate Winslet even managed to do so for over 7 minutes, breaking the film set record previously held by Tom Cruise. To ensure that the swimming movements were fast enough (the Na'vi are excellent swimmers), jetpacks were used to provide additional thrust.

The following clip from Frame Voyager tells in detail about this shooting and also gives interesting reviews from earlier underwater productions by Cameron, such as The Abyss, during whose diving shots he almost drowned.

Motion capturing underwater is of course no small feat and is said to have been implemented here for the first time on a large scale - the technology for this consequently also had to be newly adapted. For the capturing, special points on the suits of the actors are recorded by many cameras from different perspectives, so that later each point can be located (and thus tracked and manipulated) in 3D space. For this purpose, cameras were positioned both under and above water. For the latter, however, the water surface posed a problem due to the many reflections - the light reflections could not be distinguished from the intended track points in the footage. As a solution, lots of small transparent plastic balls were placed on the water surface, because they let light through but stopped the reflections.

avatar2_BTS1
Avatar 2 - The Way of the Water, BTS


The live-action footage for the film was shot with Sony Venice cameras in a 3D beam splitter rig (even reasonably handy thanks to the modular sensor block). Underwater, specially designed Nikon lenses adapted for water were used.

Weta FX was responsible for the extraordinarily successful post-production - transferring the MoCap shots to the digital avatars, simulating the artificial worlds including a lot of water and so on. Water simulations are extrm complex to calculate and consequently a immense computing capacity was needed during rendering. Many scenes are also shot in 48fps, which automatically doubles the computing effort.

First reactions to the film are very positive, especially the CGI worlds seem to raise the bar again. By the way, the next, third part of Avatar should not be as long in coming - this time, shooting has already started for it.

avatar2_still


avatar2_still2




deutsche Version dieser Seite: Avatar 2 - freitauchende Stars und Motion Capturing unter Wasser

  

  Vorige News lesen Nächste News lesen 
bildNeue Sensoren von Canon - 4,6K S-35 sowie 5.7K Full Frame mit Global Shutter bildWas waren die meist ausgeliehenen Kameras und Objektive 2022?


related news:1E0Sony Mocopi: Inexpensive motion capturing for the Metaverse via smartphone for approx. 5.December 2022
RED sues Nikon over internal compressed RAW capture on Nikon Z9 27.May 2022
Atomos Ninja V/Ninja V+ enables Canon EOS R5 C ProRes RAW capture at up to 8K 30fps 1.March 2022
AJA introduces Io X3 Thunderbolt 3 capture and playout box with HDMI and 3G-SDI 6.February 2022
Free Motion Cam app enables CinemaDNG RAW video capture on smartphones for the first time 5.December 2021
Hollyland Cosmo C1: 300m SDI/HDMI Video Wireless Link with USB Video Capture 13.November 2021
Kinefinity withdraws internal RAW capture on all current cameras - RED patent? 2.March 2021
alle Newsmeldungen zum Thema Capturing


[nach oben]
















Archiv Newsmeldungen

2023

January

2022
December - November - October - September - August - July - June - May - April - March - February - January

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000






































deutsche Version dieser Seite: Avatar 2 - freitauchende Stars und Motion Capturing unter Wasser



last update : 31.Januar 2023 - 18:02 - slashCAM is a project by channelunit GmbH- mail : slashcam@--antispam:7465--slashcam.de - deutsche Version