Showing posts with label Sky Replacement. Show all posts
Showing posts with label Sky Replacement. Show all posts

Wednesday, August 26, 2009

Prime Focus VFX Helps Elevate G.I. JOE: The Rise of Cobra


Contributes 124-Shots, Including Building Complex Nanomite Animation Pipeline and Orchestrating Finale Aerial Sequence


Hollywood, CA Prime Focus VFX--formerly Frantic Films VFX--announced that it has contributed 124 visual effects shots for the Stephen Sommers-directed movie G.I. JOE: The Rise of Cobra from Paramount Pictures. Prime Focus Los Angeles, Winnipeg and Vancouver visual effects studios most notably provided expertise in previz, digital environments, fluid simulation and high-volume particle rendering for the movie's action-packed finale sequence involving a complicated aerial scene. G.I. JOE: The Rise of Cobra starring Channing Tatum (Duke), Sienna Miller (Baroness) Marlon Wayans (Ripcord), and Rachel Nichols (Scarlett) premiered in theaters on August 7, 2009.


Prime Focus contributed roughly 70 visual effects shots for the finale's aerial sequence, which features a plane being eaten away by Nanomites, a U.S. developed bio-weapon usurped by evil forces that disintegrates metal on contact. Said Chris Bond, senior visual effects supervisor and president of Prime Focus VFX, This sequence was particularly challenging because we weren't relying on any aerial photography, which would be nearly impossible to shoot at these speeds, but instead created nearly everything digitally the plane, sky, clouds and the destructive Nanomites that eat away the plane.

In addition to developing a custom toolset to generate 3D cloud and sky environments, Prime Focus built a Nanomite animation pipeline and a hybrid matte painting, environment and 3D animation pipeline. The company also dedicated extensive R&D to improving its in-house scene collaboration system that allowed its LA and Vancouver offices to work seamlessly together.


We created a system whereby no single shot lives as a whole, but rather as a collection of project, sequence or shot assets, explained Chris Harvey, visual effects supervisor for Prime Focus VFX in Vancouver. Assets could range from models, shaders, animations, scripts, light rigs and anything in-between. These assets would then be assembled on the fly based on the specific requirements. This facilitated a number of important aspects to our pipeline - artists would always have the latest approved assets regardless of their global location, and we could make changes en masse and have them propagate through various levels of the show, shot, sequence and even across the entire project.


In addition to providing previz for the aerial sequence, Prime Focus artists, with VFX supervision from Bond and Harvey, built a Nanomite animation pipeline using Prime Focus proprietary volumetric particle renderer Krakatoa, along with Autodesk 3ds Max, to render out the billions upon billions of particles that make up the Nanomite cloud. Functioning as an intelligent swarm, the Nanomites are able to track their movements to avoid retracing their steps, leaving no metal untouched until whatever they're consuming crumbles and collapses. To produce this complex destruction, Prime Focus created a series of particle systems, shader networks, and procedural level set tools that would all talk to and affect each other. This created a true geometric volume with thickness and surface properties that would be eaten, rather than paper-thin transparency texture maps.


Using footage of actor Wayans shot on set in a chair with only the practical cockpit around him, Prime Focus artists digitally built the Night Raven plane, including its inner-workings and engine, which are revealed as the Nanomites eat away the metal. Ken Nakata headed up the digital matte painting department in Los Angeles to create the CG sky and clouds using a combination of fluid dynamics, matte painting, CG simulation and particle simulation. Prime Focus also created missile contrails and built the White House and Potomac River entirely in CG. In addition to the finale, Prime Focus also contributed to the opening sequence in which a tank is destroyed by Nanomites and provided interior shots and set extensions for the Cobra base. Autodesk 3ds Max and Maya were the tools-of-choice; eyeon Fusion was the compositor.


About Prime Focus
Prime Focus is one of the world's largest Visual Entertainment Services groups, specialising in providing creative and technical services for the film, broadcast, commercials, music, gaming, internet and media industries. With a market capitalisation of $140m USD, it operates nine facilities in India, four in the UK and four in North America, offering clients access to a talent pool of over 600 visual effects artists worldwide.

Over the last 11 years, Prime Focus has played a pioneering role in embracing digital entertainment technologies, and today offers an end-to-end service deploying robust, best-in-class technology platforms to create a delivery pipeline that lets its customers effectively manage the creative process.

Prime Focus is a market leader in its field, ranked number one in India and number four in the highly competitive UK market. Part of its success has been due to the care and attention it pays to clients at a local level (running studios in London, Mumbai, Chennai, Hyderabad, Goa, Bangalore, Los Angeles, New York, Winnipeg and Vancouver) whilst leveraging the talent, resources and cost advantages of its global infrastructure.

Prime Focus is a public stock company with shares traded in the Mumbai and National Stock exchanges in India (Symbol - PRIMEFOCUS). Prime Focus also owns and operates Prime Focus London plc (Symbol - PFO), which is publicly traded in the LSEs AIM market.

Thursday, December 11, 2008

Pixion VFX adds punch to Golmaal Returns

This festive season, Golmaal Returns, the sequel to the popular comedy flick Golmaal opened to audiences all over. Adding to box office success of the movie is the visual effects and CG work conceived and executed by Mumbai-based VFX major Pixion.

Directed by Rohit Shetty, the film stars Ajay Devgan, Tusshar Kapoor and Arshad Warsi, reprising their roles, and Shreyas Talpade in the role originally played by Sharman Joshi. Kareena Kapoor, Anjana Sukhani, Amrita Arora and Celina Jaitley were new additions to the cast. Produced by Dhillin Mehta under the Shree Ashtavinayak Cine Vision banner, the film released on October 29, 2008.

Pixion’s mandate for Golmaal Returns included close to 425 VFX shots, right from green screen shots, CG insertions, CG environment creation, Wire/Rig Removals, Multi Plate Composites and Sky Replacements, with around 55 artists chasing a tough deadline of three months.

Interesting Shots:
Songs: The Title sequence and the song ‘Tha Kar Ke‘ involved extensive work by Pixion. There were as many as about 125 shots in both these songs alone. As the actors were standing, sleeping on the bikes, all bikes in the songs were rigged to a great extent.



Sleeping act on a moving bike: The studio had to show as if the bikes were running by themselves without any support. High resolution pictures were taken of the bike from all the angles for texture references. In couple of the shots the studio recreated the whole bike in CG and composited it seamlessly photo real. These were multi layered composites with as many as 20 plus layers.



Yacht sequence:
There is a three minutes yacht sequence which was completely shot against green screen and Pixion had to recreate the sea environment. Green screen was replaced by CG sea and sky taking care of the horizon, perspective and scale. There was lot of match moving involved in this sequence.

The requirement was to show it as a fantasy sequence in the film. So, there are CG dolphins flying all over the yacht. Even the colour scheme was desaturated with little blue tone to make it look like a moon-lit fantasy sequence.



Pixion team has worked on digital sky replacements in the film which again involves extensive match move, rotoscopy and seamless compositing.

Creative challenges:

Pixion VFX Supervisor Naveen Paul said, “As we were totally involved from the preliminary stage, we were more organized in terms of planning of a particular VFX shot. Our team was actively involved in the VFX shoot supervision too.”

“Rohit Shetty, the director, is very talented and has made sure that he conveyed his visual requirements in depth. He was open to ideas and always encouraged us which helped us to give in our best. We first made a storyboard on some of the complicated sequences for his approvals and value additions. Later, we presented him with rough animatics and accordingly planned the shoot which further eased our final execution,” he added.

Experience and other confronts:
Added Naveen, “It’s been a great experience working on Golmaal Returns. We had a very short deadline on this project. It was quite challenging to complete the shots in time keeping quality as the highest and only priority.”

Added Pixion CEO Naresh Malik,“It takes a lot to convince a director, cinematographer or producer that we have it in us to be able to deliver his mind’s vision. We are fortunate to have a very healthy, trust based relation with the team of Golmaal Returns lead by the director. We have had, in the past, an opportunity to be associated with him on another film and we look forward to working together again. We thank the entire team of Golmaal Returns for the honour that they bestowed on us by allowing us to be a part of their film.”