3D World - - FEATURE -

The Mar­i­ana Trench, a trough lo­cated 10,994 me­tres be­neath the Pa­cific Ocean, needed to be re-cre­ated in an ef­fi­cient and man­age­able man­ner. “For an en­vi­ron­ment like the Mar­i­ana Trench you have com­pet­ing con­cerns,” notes DNEG VFX su­per­vi­sor Ray­mond Chen. “For ex­am­ple, you may have a Staghorn coral that ends up right in front of the cam­era and needs to have high de­tail so you see the bumps and nod­ules. Some of that won’t be well served by dis­place­ment so you need to model in that de­tail. Then on the other side you see in the wider sweep­ing shots a colony of a thou­sand Staghorn coral. You can’t have such a dense model. We built in the de­tail where needed and let it go where you wouldn’t see it as clearly.”

A sim­i­lar ap­proach was adopted for the ter­rain. “We plot­ted out the whole path of the cam­era and sub­mersibles build­ing in the fine de­tail and leav­ing all of the stuff out­side of that at a much lower res­o­lu­tion. For all of the coral and tube worms we made high- and low-res­o­lu­tion ver­sions, and all in­be­tween so that you could switch it up based on what was needed.”

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