2009 was the appearance of 3D films produced by DreamWorks Animation. 3D films were possible with the help of InTru3D. Films and test scenes can be viewed in stereoscopic 3D which allowed production teams to experience the 3D effect.
Many programs and techniques go into creating a 3D film. One software known as "smoosh" was used in films such as "How to Train Your Dragon", "Madagascar", "Shrek" series, etc. Smooth allowed any object or material to react properly and realistically when it contacted with something else. It would detect the movement and speed of chain reactions of an object with its surroundings. The fur and hair material for "How to Train Your Dragon", "Madagascar" and "Puss" in "Shrek 2" was simulated using the smoosh.
For "Monsters vs. Aliens", one of the main focuses was capturing the effect of stereoscopic views. When a person closes one eye and flips, the effect is that the scene rotates or seems to change position. Phil McNally wanted to capture this effect throughout the film when the point of view changed. It would give the effect that an object is moving in space according to the perception of reality.
Another effect used for the movie was capturing dynamic camera movements and angles to help with the storytelling. "Monsters vs. Aliens" production's team used a live camera that could be imported into a 3D layout on a computer. A person could then use the camera to navigate around the 3D environment manually rather than using the computer camera preset. This allowed for more precision for the angles and shots envisioned for the film.
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