Computer Graphics Masters

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The creation of Rocket, the smart-mouthed raccoon, was the hardest part of the Guardians project, says VFX supervisor Kyle McCulloch

In pursuit of realism Photorealistic characters, like Guardians of the Galaxy’s Rocket, drive technology forward, says Framestore VFX supervisor Kyle McCulloch “[For Rocket] we implemented

right up next to him, render all of

developing the face shapes and the

our own fur model and fur shader.

those hairs and have it not buzz and

sculpts for Rocket, we would always

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There’s a guy called Steve Marschner

have it not look like anything other

render it before and after, showing the

Despite the industry’s competitive nature, Double Negative has remained a leading VFX vendor, providing various effects for some of Hollywood’s biggest hits, including The Dark Knight Rises, the Harry Potter series and Godzilla. But it was the studio’s work on Inception that saw it gain the major plaudits. Limbo City and the Paris fold-over sequence required extraordinary effects work, an achievement recognised by the Academy Awards in 2011 when the team bagged the Oscar for Best Visual Effects. “Inception was a unique opportunity to do something a bit different,” says Franklin, “where VFX was placed at the heart of storytelling, and it was good fun making it.” For this project, the art led the science, requiring the Double Negative team to build custom tools in order to

who wrote the paper on physically

than hair.

puppet and the fur, and play a game

accurate rendering for hair, and we

“[Not seeing the fur] was a major

of charades, where you look at a pose

went ahead and implemented his

hurdle for us in the animation process

and, without the animator telling you,

model – mostly because when we

because traditionally you have an

guess what they’re going for.

were doing side-by-side comparisons,

animation puppet that’s got smooth

rendering our fur next to real fur, it

surfaces and is grey-shaded, and

implemented a system where our

got great looking results very quickly.

you’re putting that in the plate and

animators could kick off a relatively

“The disadvantage is that it’s

“Then on top of that we

doing your animation. And on a

inexpensive version of the furred

computationally expensive, so then

grey-shaded model it’s really easy to

render. We realised we needed to

we had to dive in and figure out

see every wrinkle and curve of every

be showing [director] James Gunn a

how we were going to make it more

sculpted shape, so performances read

render, and not playblasts, so we did

efficient. That was another huge piece

very clearly. And then you put the fur

a lot of relatively low-res renders early

of development we had to do because

on it and it all disappears.

on and got those in front of him rather

Rocket’s got millions of hairs, and we needed to be able to get the camera

“We took a couple of different approaches to tackle that: in

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than playblasts which helped us get to exactly the right performance faster.”

© 2014 Marvel Studios.

Another big change that’s affecting the industry is globalisation. The usual territorial borders of being a US effects house or UK VFX shop no longer apply; most big vendors have satellite offices situated all around the globe. During 2014, Framestore opened an operation in Montreal, while Industrial Light & Magic set up a facility in London. One studio that’s realised the benefits of having artists based in different parts of the world is Double Negative. Having originally formed in London in 1998, the studio now has offices in Singapore and Vancouver. “The VFX film industry has changed a lot, both globally and locally,” says Paul Franklin, VFX supervisor at Double Negative. “The business has become a lot more international in that the US studios, who are the main purchasers of feature film VFX, are much more willing to look at VFX vendors all over the world. That isn’t to say they weren’t doing so in the 1990s, but back then the primary reason to go overseas for VFX was price. Price is still very important today, and there are plenty of tax incentives and subsidies to encourage filmmakers to pick one location over another, but quality and working relationships with the filmmakers play a much larger part than they did 16 years ago. A large part of [Double Negative’s] success is down to us developing strong relationships with great filmmakers who come back to work with us time after time.” Franklin has also noticed significant changes much closer to home. “In terms of local business, the VFX industry in London has grown from a couple of hundred people to a couple of thousand and more,” he says. “UK VFX houses have gone from being niche specialists to comprehensive one-stop facilities, capable of handling all aspects of the VFX, even on the largest shows.”

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