Posts Tagged 3D modeling

Property of ABC; screencap from the Zoic Television Reel.

Based on the science fiction novel by Robert J. Sawyer, ABC’s FlashForward tells the story of the aftermath of a bizarre global event. For 137 seconds, every person on Earth (except perhaps one) loses consciousness, and experiences visions of their own future.

The pilot episode presents the immediate aftermath of the worldwide disaster, with the consequences of the worldwide blackout – millions of deaths due to traffic collisions, crashed aircraft, and other accidents. Star Joseph Fiennes, portraying FBI agent Mark Benford, survives an auto wreck and looks out over a chaotic Los Angeles cityscape. Culver City, California’s Zoic Studios was tapped to create the disastrous tableau; the company’s work on the episode was nominated for two VES awards, for Outstanding Supporting Visual Effects in a Broadcast Program and for Outstanding Created Environment in a Broadcast Program or Commercial.

Zoic VFX Supervisor Steve Meyer discusses the creation of the complex scene, which required a tremendous amount of rotoscoping and motion tracking. The amount of roto was necessary, Meyer says, “because they shot in downtown LA, looking from the 4th St. overpass, over the southbound and northbound 110 Freeway. So naturally you can’t stop all that traffic, or get a greenscreen up.

“There’s a big, swooping hero shot following Joseph Fiennes as he jumps up on a car and looks down, and it’s a huge vista. Then we reverse it and look northbound. Everything in the foreground on that overpass we had to roto out. We had a team of seven or eight people going for weeks, just rotoing that and a bunch of other shots.

“We ended up having to remove all the traffic on the freeway; then added in overturned cars, cars burning, flames, smoke, helicopters crashing, just debris everywhere. We had to build a 3D matte painting in that environment. There’s a lot of detail – you can look at the shot over and over, and always see something new.”

The production brought on an experienced feature film matte painter, Roger Kupelian (2012, Alice in Wonderland) to create a “road map” of the shot. “Kupelian took a still of the freeway overpass shots, and he just dialed it in with Kevin Blank, the VFX supervisor – we want smoke here, we want the helicopter to hit here, we want fire and destruction here, we want this tree burning. They gave us a template – this is what we need it to look like. Kupelian sent us the files, and sometimes we used his elements.

“There are about 45 shots we ended up doing for the pilot, and the majority of them were for that overpass sequence. For most of the shots, nothing was locked off – every shot had some sort of roto, because there was no greenscreen. We had to roto everything to build the shots, and then try to match the smoke, fire, debris, people and other elements from shot to shot.

“We were working with different formats — stock footage, film footage, the Red Camera — trying to mix all these different formats to create one environment.”

All the scenes were tracked in Andersson Technologies’ SynthEyes camera tracking software, from which the team was able to build a 3D environment. The artists used this 3D information in Adobe After Effects to rebuild the plate with clean pieces of freeway, overpasses, signs, etc.

There’s a lot of detail – you can look at the shot over and over, and always see something new…

“The smoke was a combination of digital photographs, Google images, CG smoke, and moving elements that we had in our vault. Some of the smoke was a dust cloud that we slowed down. One of the smoke passes was a photo of a brush fire I took up by my house with my iPhone. I took the image, gave it to one of my compositors, and said ‘this will look good off in the distance.’ It’s so far off you don’t see it moving, so it fit in fine.

“They shot lots of people on greenscreen, and they all needed to have the right camera lens perspective. They’re way off in the distance; you have to get up close to an HD screen to see them. But we didn’t want any nuances to be overlooked. We don’t want to shoot a person head-on when the camera is going to be looking down at them.

“Another complication with the overpass sequence was that it was shot on a bright day, so we had a lot of technical problems. If you look at someone up against a bright sky, the sun wraps around them a bit, like a halo – and we were trying to put a dark smoke cloud behind them. It just doesn’t work right. We had a lot of technical things to try to work through when we ran into those kinds of problems. Every shot had to be 3D tracked. We took that 3D track into our environment, and we placed things in our 3D world shot by shot by shot.

“We also had a CG tanker in there that blew up. They actually had a real tanker with a big hole in it, and they threw in six gallons of gasoline and lit it and boom! It was huge. We had to put the shell of the tanker on there before the practical explosion; and then we just blew it up in Autodesk Maya and added CG debris, camera shake, heat ripple and dynamic smoke trails; plus glass shattering on the buildings and other background effects.”

Property of ABC; screencap from the Zoic Television Reel.

Wreckage from the tanker explosion strikes an overturned car and knocks it off the overpass onto the freeway below. Zoic created the car in CG. “They shot everybody running up to the guardrail and looking over,” Meyer explains. “We had to remove the railing and put in our own CG railing, so when the car goes down it takes it with it. So we had the complicated roto of recreating the people’s bodies that were behind the railing. We had to rebuild lots of people’s legs and waists. We put in the smoke and stuff that dynamically reacts to the car, so when it gets sucked down it creates a vortex and pulls the smoke down. Also, there’s an orange cart right nearby. We try to get every detail right, so when the car goes down we have a couple of oranges that roll away with it.

Property of ABC; screencap from the Zoic Television Reel.

“Then we had the falling LAPD helicopter. We took a panoramic image of a building, so we’re working on one frame and can do a pan-and-tilt in post. The helicopter has already crashed into the building, and we needed to have the smoke barreling out through most of the sequence, with the rotor blades still spinning — then we get to a certain point, and there’s an explosion that pushes the helicopter out. It tumbles and it’s scraping the building, tearing it apart and opening it up.

“Roger Kupelian labored intensely on a matte painting of the inside of the building, with what would be exposed – wires, beams, pipes, office equipment. As the CG helicopter was falling down the face of the building and opening it up, our compositor just revealed it with little mattes. At the same time we threw in sparks, debris, dust and smoke. It ended up pretty good. It was tough making an animation that made everyone happy, but in the end it looked great on the big screen at the viewing.

“Some of the shots were fun, because you can really push the envelope — let’s see what happens when we do this or when we do that. It took a lot of planning and careful choreography to between our 2D and 3D teams to keep the action and look continuous. Our teams worked tirelessly to create seamless product because anything out of place would be glaring.

“This isn’t ‘sci-fi’ with spaceships and aliens,” Meyers says, “which allow a bit of imagination – but rather, real-life vehicles, smoke, fire, people and buildings that have to look real.”

More info: FlashForward on ABC.com; the latest Zoic Studios Television Reel on ZoicStudios.com; Steven Meyer on IMDb.