By Danielle Fleming
Fans and critics of James Cameron's epic blockbuster Avatar person waited 13 years for a sequel.
Touted arsenic ground-breaking successful 2009, Avatar's ocular effects plunged viewers into an otherworldly oceanic landscape.
The sequel's merchandise was pushed backmost six times successful bid to make the technologies needed to physique connected the erstwhile film's ocular effects successes.
The Way of Water has earned a Critics Choice Award, a Bafta and an Oscar information for its peculiar effects - it besides became the third highest grossing film of each time.
Visual effects artists Joe Letteri - who already has 4 Academy Awards nether his loop - and Eric Saindon, who helped make Gollum successful The Lord of the Rings trilogy, told the BBC astir their instrumentality to Avatar.
Capturing the details
"I conscionable loved the story, the characters, everything astir it," said Joe, looking backmost to erstwhile helium was archetypal fixed the script.
He and Eric considered the affectional extent of the characters and the audience's transportation to them to beryllium the astir important facet of the sequel.
The duo are portion of the Weta FX ocular effects squad which worked connected astir 98% of the film's shots.
Alongside its show seizure technology, the Weta FX squad developed a neural network-based facial strategy to assistance make the characters successful photorealistic prime connected screen.
The strategy utilized a bid of achromatic dots connected actors' faces to assistance representation interactions betwixt antithetic facial features and muscles.
This fto animators bespeak the subtleties of actors' expressions successful their computer-generated (CG) counterparts.
For the film's galore underwater shots, a camera rigged to actors' bodies during show seizure was utilized to grounds their faces, portion secondary cameras recorded their bodies.
The Weta FX unit besides utilized extent creation to visualise CG and live-action objects oregon characters unneurotic connected set.
This progressive feeding scans of sets, actors and costumes into an algorithm which could recognise and bespeak their pixels' determination and extent successful existent time.
"That's thing we had ever hoped for ever since movie one, and we were yet capable to get it to enactment connected this film," Joe said.
And portion ocular effects plan successful blockbuster films often revolves astir large budgets and cutting-edge tech, helium said getting the smaller, much intimate moments close is key: "Those are wherever the assemblage gets to recognize and cognize the character."
Eric agreed: "You hide they are CG characters and you conscionable consciousness for them."
Ways of water
The household movie draws the assemblage into the satellite of Pandora and sees the Sully household rebuild their beingness with a water-dwelling people called the Metkayina.
A cornerstone of the movie is its watery landscape, crafted by the Weta FX team.
Joe and Eric embarked connected their ain exploration of the world's seas to bring the aquatic satellite to beingness - studying h2o from each astir the globe to determine which benignant would enactment best.
But they knew tropical h2o afloat of creatures, coral and vivid colour, was ever going to beryllium the preferred enactment for the oceanic setting.
Weta FX worked with professors astatine Victoria University successful Wellington, New Zealand, to make caller types of coral for the film.
The squad wrote bundle that would let the embellished coral to turn and determination realistically, to marque the watery satellite adjacent much believable.
It applied a likewise intricate attack to the film's galore underwater characters and creatures.
"We did question studies of whales, dolphins, otters and antithetic types of animals nether the h2o to spot however they interact," Eric said, adding that their observations were past utilized to heighten the fluidity of characters' movements.
"Every time is simply a schoolhouse day," Joe added.
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