Monday 6 August 2012

Pre-visulization

Something that in the last ten or so years has become common place amongst major movies, is something called Pre visualization. In the old days, before computers or any of that fancy technical stuff,story boards were really the only way to get an idea of the camera angles and field of view/lenses that should be used for the movie. 
These are still used today as it's still a lot faster to draw a sketch then it is to model something in the computer. Even simple boxes still take longer to put together then a stick man.

However one thing that storyboards lack, is motion.  Arrows or written descriptions have to be used to get across things like the motion of the camera and characters. Terms were invented to quickly describe these actions.  For example POV (point of view) or CU (close up).  Although these help the director and anyone else involved, it doesn't tell you much about how long a shot should be,  or if the camera starts off locked but then starts to Dollie, how long is it locked off for?  And when it comes to characters positions in the scene, it becomes even more vague.

So this is where the Pre Visualization comes into play.  Most of the time these are created on the computer.  But this isn't always the case.  
Way back when they were creating Star Wars Return of the Jedi they didn't have computers powerful enough to quickly create scenes that could be iterated, so they had to use models. 
 One famous scene that used this technique was the Speeder bike sequence. They simply used toys and cardboard trees to create the scene. By sticking small camera on the bikes and moving them around by hand, they could get a pretty good idea of what the final scene would look like.
Computers have now become so fast that studios can quickly produce pre-vis and change it on the fly. 

Below is the pre-vis for baggage. Most of these shots remain pretty similar in the final version.  One of the biggest differences was the beginning. I  removed this, as I decided it worked better not knowing what was causing him so much grief at the beginning.



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