Physics of Animation
Monday, May 18, 2015
Extra Credit
I attended the Cinequest screening of the animated shorts, my first credit in a movie on the big screen! I forgot to get a photo of myself but here's a shot of Dave Chai from the audience where I was sitting.. You can ask him, I was there!
Wednesday, May 13, 2015
Creating Stereoscopic 3D Images
The assignment here was to create 3D images using blending tools in Photoshop. It's finals week and I've been up for 48 hours straight so I'm rather unsure whether I really succeeded or I'm just dizzy :P
Red/Cyan
Red/Cyan
Red/Cyan
Green/Magenta
Wednesday, April 29, 2015
Recreating Cameras and Lights in Maya
For this assignment we were tasked with recreating a lighting scenario in Maya based on a photograph of an object.
Photo:
Maya copy:
Bonus Points: Lighting a Scene in Maya
In this assignment we had to build a scene in Maya using our initials as the main objects and light them in 1, 2 and 3 pt lighting.
Wednesday, April 15, 2015
Outline for the Third Term Paper
Intro: Volcanic erruptions - often misrepresented
-Avatar the Last Airbender (the tv show) season 1 episode 14
-The lava that runs down the hillside is very fast moving, like water.
This would not be the case
In addition, volcanoes that have explosive eruptions with huge clouds of smoke do not also have lava flow. They have debris.
-What could have been done that would be more appropriate to the level of fear the lava causes is make it a lahar- it is more fast moving and dangerous.
The same issue can be seen in Disney's Aladdin, although it can be argued that it is magic lava and doesn't come from a volcano.
-Here is an example of a volcano that has an eruption animated for comedic effect. But they explain it as a fluke, and in no way magical since the two aren't gods, so realistically, this could not happen either.
-Avatar the Last Airbender (the tv show) season 1 episode 14
-The lava that runs down the hillside is very fast moving, like water.
This would not be the case
In addition, volcanoes that have explosive eruptions with huge clouds of smoke do not also have lava flow. They have debris.
-What could have been done that would be more appropriate to the level of fear the lava causes is make it a lahar- it is more fast moving and dangerous.
The same issue can be seen in Disney's Aladdin, although it can be argued that it is magic lava and doesn't come from a volcano.
-Here is an example of a volcano that has an eruption animated for comedic effect. But they explain it as a fluke, and in no way magical since the two aren't gods, so realistically, this could not happen either.
Tuesday, April 7, 2015
Stop-Motion Character Animation
I had the idea for this animation while having a conversation with a friend about dreams and nightmares. They swore that nightmares were caused by being cold and so I thought up a dream-catcher character that physically does things to keep its owner from having nightmares. The animation is stop-motion. It's very shakey since I didn't have a remote for capturing each shot. I anticipated this before shooting, though, and decided it was okay since I wanted it to feel like an outsider witnessing the object coming to life. I made the puppet using some wire, a dream-catcher and some plastecine. The whole process took me about 4-5 hours to shoot and compile the frames in Photoshop's timeline (since for whatever reason the camera I used took photo files not supported by anything else.) Here's a bit of the prep work and the final cut:
Tuesday, March 31, 2015
Science Fact or Cinematic Fiction
The chase has
long been a cinematic story-telling device.
Fast cuts and impossible stunts make characters seem immensely faster
than the actors portraying them. But all
too often in chase scenes there is a maneuver or inconsistency that throws off
the audience. You’d think that this
would be less distracting and more controllable with animation. Yes, animation allows for a lot of leeway with
its physical laws. Screenplays are often
animated out of necessity or choice to break the laws of physics and to reveal
new ideas and worlds that don’t exist.
But an audience that is very engaged in a fast paced scene might be
broken from their trance when they feel as if a character or object did not
move the way it should have. This can
often be caused by an inconsistency with Newton’s 3rd law. This principle says that for every action
there is an equal and opposite reaction. Breaking the laws of physics in both
animated and live action film can be comical or add to excitement, such as in
Despicable Me where Gru punches the shark (mentioned in my previous paper). However animation can be as equally guilty as
live action of maneuvers that break the laws of physics in a distracting manner.
In the Dreamworks film Mr. Peabody and Sherman, there are many physical laws broken. This film contains a lot of chase sequences and time machine travel scenes that could only be achieved through animation. But even with the wacky physical laws established in the world of the film, there is one scene that feels very wrong while it is playing out. Mr. Peabody and Sherman are attempting to escape a tomb in ancient Egypt. At one point Sherman is unsuccessful at avoiding a trigger that sets off a booby trap. He and Mr. Peabody get separated and end up in two separate canoe-like boats. One of the boats is headed for safety while the other is destined for imminent destruction. Peabody realizes that he needs to get Sherman into his safe boat and uses a rope to jump to him and swing both of them back to safety. But the downward force of Mr. Peabody and Sherman swinging at the end of a taught rope that is tied to the boat has no apparent effect on the boat’s trajectory. Since the boat is supposedly rigged to launch and carry its passengers through a small hole, the audience recognizes when the trajectory should have been shifted. This can be more thoroughly explained by the conservation of momentum theory, though it is related to Newton’s 3rd Law. The conservation of momentum theory would state that the mass and velocity of Mr. Peabody must match the mass and velocity of the boat. While Mr. Peabody is inside the boat, he acts as an internal force. But when he leaves it to retrieve Sherman, the boat should have increased the velocity since mass has been shed. But even more distracting is the fact that when Mr. Peabody and Sherman’s velocity is changed because they are swinging perpendicularly to the boat, both their mass and velocity should have an effect on the boat’s velocity and the direction it is travelling in. If the principle were obeyed, then both boats would have surely crashed into the wall surrounding the small exit. So I suppose I understand why the animators executed the scene this way.
In the Pixar animated feature, UP, an old man and a young boy are tasked with transporting a small Victorian house suspended in the air by millions of balloons, across a jungle, by means of rope strapped to their waists. Yes, this whole premise is physically impossible to begin with. However, this concept and the animation of it don’t feel unlikely. What I mean by this is that the audience doesn’t feel on edge that the house will fall and crush Mr. Frederickson and Russell at any moment. This illusion is very successfully maintained until the pursuit scene. While being chased by hundreds of dogs, Mr. Frederickson and Russell are faced with the challenge of jumping over large gaps between rocks on the mountain. Russell falls and swings back and forth but this has no effect on the momentum of the house or on his friends who are carrying him now. Russell mentions earlier in the movie that he and Mr. Frederickson just weigh down the floating house. Therefore, Russell’s weight and his pendular motion would have an effect on the house’s movement. However the house shows no reaction to his change in velocity.
In the Disney film Tangled, there is a scene where Flynn Rider grabs a hold of Rapunzel’s hair and jumps from a high platform, swinging to the other side of a dam. Assuming Rapunzel’s scalp is indestructible still does not explain why the force and momentum of a fully-grown man swinging from her hair has no effect on her or the small rock her hair is tied to. This one of few scenes where the camera shows her while someone is suspended from her hair. Otherwise the camera doesn't focus on her, and the distance that Rapunzel’s lengthy hair puts between her and Flynn may be the key to keeping audiences from cringing for the poor girl. She could not be capable of rivaling the force that is being put on her body from the people who climb her hair. And in this scene, her hair would easily be broken or her hair would be pulled out from the rock she had no time to tie it to.
Any fast-paced
scene worth watching is going to have some sort of effects that make it feel
all the more exciting. Breaking the laws
of physics can be a great tool for causing something unexpected to happen. One of my favorite laws of story-telling
written by a Pixar writer says (basically) that coincidences should only be the
cause for problems, not be the method of solving them. I think this rule can altered for breaking
the rules of physics as well. If
breaking a physical law is the line between a character’s survival and death,
then it shouldn't feel coincidental. In other words, make your animation say
what you mean it to.
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