Friday, 11 May 2018

ANIMATION, SIMULATION AND AUTOMATION, The cognitive convergence 2

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SIMULATION:

Although the word Simulation, is synonymous with those in the scientific community, modern day animators and professionals in other fields too have come to leverage on its benefits. It can be thought of as another way of producing animation, but this time, instead of moving our objects by hand, frame-by-frame; we shall base all our movements by obeying some natural laws governing the universe, like Gravity, Atmospheric pressure etc that may affect our objects over time. An animator tells a story and creates more of an illusion, but a simulator tries to mimic real life events by mathematically creating the model.
Just before one embarks on simulating any physical event, it is important for such one to have some basic understanding of the how the objects behave in real life situation. This process of understudying is what some call Operational Research (OR).  Also, some fair knowledge of Mathematics and Computer programming are also essential, because they will help us to develop a functional mathematical model that will help us formulate the best algorithm for the physical event.   Since all the outcomes of all Simulations are guided by physical laws, it helps to foresee problems ahead and to correct them on time.

SOME USES

As earlier explained, Simulation can also be used for predicting the outcome of events in general, even before they occur. All that is required is the collection of some basic information (Data), and the understanding of the event. Some countries have used this process to correctly predict the outcomes of their election months before they even occur.  It can also be a good study aid as some stakeholders in some companies had successfully used it to predict the future market trend and make the necessary adjustment before it was too late. Surgeons use Simulators too to practice some difficult medical procedures ahead of time.
Today people learn to fly a plane by using a flight simulator only. All events that might happen during real flight had been captured into databases (Storage) and used for the simulation process, thus forestalling all costly accident that might want to occur. In automobile systems, engineers also use it to calculate the rate of explosion of the gas on the cylinder head and how far the pistons can travel down. In legal matters, some Lawyers use other Simulation techniques to reconstruct some evidences.


ANIMATED SIMULATIONS:


Merida, from Brave

In modern animated movies, animators sometimes copy the outcomes of some of those simulated processes. Then they visually match their animations with those outcomes as a reference. Usually, Animations produced in this type of fashion are so Smooth and convincing because they were not Key-framed by hand. Some realistic movements and collisions of vehicles were achieved this way in some Games and Movies because of their reliance on Newtonian Physics.
A classic example of an animated simulation is in DISNEY’S BRAVE.  The hair on Merida’s head was not hand animated, but rather it followed the simulation approach. The animation Director knew that animating a few strands of hair was not very difficult, however animating several Red Bulky strands like that of Merida’s would not only be a tedious process, but the final result might produce an unrealistic output that may even flaw the movie. So he involved the simulator, who after understudying similar human-like hair structure was able to derive the computational Model that best fits the entity.
 


Since Merida’s hair was free and curly, the best approach for such simulation was that of a spring (see SHM Simple harmonic motion ) that continuously interact with gravity.
Creating models follow the Mathematical approach, while the actual Simulation itself follows the Computational approach. And after several computations and tweaking, they were able to come out with the best Model that simulates the description. Even though simulation can be computationally expensive, animators leverage on its benefits to quickly produce fluid and realistic animations.
The lists are endless, but virtually all modern animation software has Tools for simulating Particles and Physics in them. Now, both artists and scientists can collaboratively work together on a single platform intuitively. Next, let us see the creative connections between the Artistic community and those in the Technical and related fields.


TO BE CONTINUED>>

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