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Interview with Mikael Genachte

By Richard Tilbury

Web: http://mikael.genachte.free.fr/ (will open in new window)
Email: moc.liamg@ethcanegleakim

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Date Added: 30th November 2012

Tell us a little about your work on Yogi and the challenges it posed?

Yogi was the first stereo movie for Rhythm and Hues. We had to adapt our equipment as well as the pipeline. We could no longer "cheat" as we had often done (for example; adding simple planes to complete geometry without modeling it entirely). The fact that we had to render through two cameras (one for each eye) to create depth and relief required that we accurately modeled each object: ground, mountains and trees etc, and then place them accurately in space.

Our department worked primarily on three sequences: the opening sequence, Yogi's flying machine sequence (all the sky, ground and mountain environments) as well as the river pursuit. It was a pleasant experience and everything went really well. Seeing one's own work in depth and relief through 3D glasses was really enjoyable.

Can you talk us through the Narnia shot with the collapsing pit and explain the process and techniques you used to produce the sequence?

For this shot, the FX department gave me the geometry making up the inside of the pit and the animated ceiling collapsing in several pieces. The "ground" part of the matte painting covered the meadow and the inside of the pit. So the camera projection encompassed all parts at the same time and each part that collapsed needed to keep its allocated texture piece. We asked developers to add this feature to their projection software. We had another camera viewing the pit from below, adding dirt to the "underground" sections of these pieces.

It appears that you had "carte blanche" over the fireplace scene in Harry Potter and the Goblet of Fire. What were the most demanding aspects of this shot?

I would say the head integration and interaction with the fireplace. We had animated plates that we had to assemble like a jigsaw puzzle (logs arrangement, flames etc) to achieve the desired design and angle and, as a result, an animated matte painting. From this one, we made a model of the fireplace and projected the texture onto it. We then had to blend in Sirius's CG head: texture, animated embers,

particles, flames and interaction with logs. Finally, there was some serious compositing to be done to make everything consistent and realistic.

You have worked across a number of different genres within the film industry, but are there any particular types of projects you favor over others?

All movies on which I can work as freely as possible so that I can contribute on as many aspects as possible: matte painting, projections, modeling, lighting and more, like we did on The Hunger Games city.

The movie I had the most fun working on was probably Silent Hill. Firstly, it's a horror movie so it's fun by nature. I was given two gory shots and was simply told to do something bloody. I really enjoyed using all the available tools to make it as nightmarish as possible, especially the shot with Pyramid Head who twists his victim's skin to pull it

off. For the final quartering, I even modeled the heart, stomach and the intestines falling down as two separate parts, but motion blur and blood spatter hide most of it.

All types of projects are interesting in their own way. I really liked working on The A-Team. I loved watching the TV series when I was younger and the sequence in the clouds we worked on was really faithful to the spirit of the TV series. We had to cover a very huge area and this type of environment is very pleasant to work on.

Finally, comedies like Night at the Museum 2 also provided a lot of freedom and let us use our imagination.

What do you feel have been the biggest advances in CG during your career so far?

Maybe the fact that CG animals are increasingly realistic and better integrated into their environments (all the latest kids movies involving talking animals are more and more hyper-realistic). Also fluid simulations are becoming more and more impressive.

I saw Avatar last year. I like to compare it to Final Fantasy: The Spirits Within (released in 2001) as they both synthesized the latest progress made in 3D computer graphics.

Many thanks for taking the time to talk to us today, Mikael.

Thanks a lot. It's been a real pleasure to answer your questions

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