"Iron Man 3" behind the scenes--a good movie is how to shoot out

"Iron Man 3" most of the play was taken in North Carolina (NC). Other filming sites include Florida (Florida State), Los Angeles and the mainland. Photographer John Toll used the camera is ARRI Alexa. The late 2D to 3D is responsible for the Stereod ...

A total of 17 companies participate in special effects production, respectively: Weta Digital, Digital Domain, Scanline, Trixter, Framestore, Luma Pictures, Fuel VFX, Cantina Creative, Cinesite, the Embassy, Lola, capital T, Prologue and Rise FX. Special effects Director Chris Townsend is responsible for the coordination between the 17 companies, as well as the entire production process of the special effects.

Because the production time is short, the card number is many, therefore like the protagonist steel clothing: The mark Hero Suit:mk 42 's special effects, needs several companies to produce simultaneously. Digital Domain is responsible for the overall design of the Mark 42. However, there are six or seven other companies that also need the Mark 42 model, these companies refer to the photos we provide, build their own version of the model, continue to make. and the integration between different companies, is by mutual transmission obj file, compared to the material appearance and performance style to maintain.

Little Raubertoni had a sprained foot during filming and was disrupted for six weeks. Then special effects to save everyone, face replacement (facial replacement) and body doubles (animation dummy) on the use. The last small Raubertoni in the seaside play, is to rely on animation dummy shot. When shooting, because know to use special effects processing, so shoot empty scene, collect light, lens information is very important.

In order to catch up with Comic-con's promotional period, the steel-clothing combination of promotional films must be completed 10 months before the curtain. The special effects were received by Trixter, who were notified in May 2012 that they had to hand over the film by the end of June. Third Floor is responsible for the design of the entire bridge section of the Previs (preview animation), Trixter is responsible for the design of iron and steel parts, Lookdev (after the light of the appearance of the material), that is, the final synthesis. Trixter Special effects director Alessandro Cioffi said: "Sometimes it's funny, there are co-workers who say which parts are like kitchen tools or coffee machines, and we redesign them to make the parts look cooler and more functional." Finally, we made a total of 24 parts.

The most difficult part of the scene is that, in the process of synthesizing the steel garments, the small Raubertoni are dressed in costumes, he cannot wear the traditional MoCap tracksuit (dynamic capture positioning service), so the Trixter team can only put the positioning point on his body, depending on those points positioning. Trixter team only 70 people, not much, they use Maya and RenderMan to make, but when the light is converted into katana. Katana plays an important role in this special effects production because asset must be shared between companies.

Before filming, special effects director Chris Townsend and the second group of director Brian Smrzs decided to shoot the scene in real-life actors. Digital Domain Special effects director Erik Nash said: "With the green screen to shoot at high altitude, usually the effect is not good, because the audience know how the image should look at the height of falling." The actor in the scene was a member of Red Bull and the photographer, who took a 20-seat plane and jumped from 13000 feet.

Digital Domain replaced everything except the actor to animation, the 20-seater aircraft replaced by the Air Force, the North Carolina scene replaced by the Florida State scene, also added the clouds and the sky, so that actors like to fall from 30000 feet, rather than from 13000 feet. Erik Nash said: This is my hardest to go back to work, people in the fall, clothes will be disorderly, hair will be disorderly throw-long hair girls to 120 kilometers per hour drop, the degree of confusion can be imagined. All actors ' body shape, dress, head, have 4DMAX scanned to facilitate the production of animated dummies (this company also contracted all LIDAR, scanning, animation dummy's business)

Extremis (the desperate virus) magma in the human flows of special effects is Framestore responsible, Framestore special effects director Mark Ba Kowski said: "We want to make a special effect, not a skin surface effects, but the body inside to outside the special effects." Therefore, it is important to build a model of bones, muscles and blood vessels, and the matchmoving between the model and the real role. The distance between the skin and the blood vessel has also been corrected many times to find the most attractive distance to hit the light. The file has finally become very heavy and must be deposited as Maya Ascii because it has exceeded the 2G limit of Maya Binary.

Weta Digital Construction of the entire seaport, including strange hands, containers, scenes of dressing (small objects embellishment). But they spend most of their time studying how to make the graphs most efficient. The strange hand of the foreground is composed of 46,000 objects, 3 million sides, and the strange hand in the background consists of 692 objects and 46,000 sides.

Deep compositing has also improved a lot of efficiency, "said director Williams," I can hardly imagine the scene without Deep compositing. This scene is very long, but we can before the animation is finished before the figure, because deep compositing will help you deal with hold-outs (Dig mask) as long as the lens does not move, animation can be constantly modified, fluid simulation also do not have to redo.

At the scene, the actor sometimes wears a real iron suit made of Legacy effects. Mark 42 and the Steel Patriots all have a real version. Although in the end, the real steel clothing will be replaced by animated steel clothing, but when shooting, the proportion of clothing, light changes in clothing, are very valuable reference. Real Steel clothing also restricts the movement of actors, but the performance is correct.

The art Department of Marvel (diffuse/Old translation: surprise) has drawn different versions of the steel clothing set (including the opposite). Digital Domain uses these paintings to build 14 high precision 3D models that contain lighting settings and materials. The most challenging part of turning a picture into a model is to make the model work (hand-bending and foot-lift), so many models have to be corrected for proportions and parts. Upon completion, the 14 models were handed to Weta Digital, who then extended the 14 models to 35 high-precision steel garments. Originally preset is as long as 14 pieces of high precision model, the background with a low fineness of the good, but the final decision to make 35 pieces are all made into hero suit (lead version/high precision version).

In charge of the scene is Scanline, the same as in front of a few episodes, the appearance of the house is animated. In order for the house to be attacked, they could fall directly into the sea, and they carved the cliff again. Inside the play, the house broke into two sections, is made of hydraulic machinery (hydraulics), with a real shot of fragments, smoke, and bullet holes. Scanline plus more special effects fragments to use Nuke to close the Iron Man's animation. After the house was broken, the water and smoke underneath were made of flowline.