Tuesday, 7 May 2013

P1, P2, M1



Types of multimedia and animation

Images, Video, Quizzes, Games, Text, Music, Sound FX, Menu buttons, Search bar, Animation, GIF, Flash, Web banner, QR code, Forum, Login, Instant messaging, Rollover image, Social networking

When referring to animation, there are many different kinds of animation that can be used in multimedia. There is drawn animation, an example of this would be the cartoons that we see on television or used in many children’s films such as Snow White or The Emperor’s New Groove. Then there is 3D animation’s which again has become adopted by the films industry mainly in the production of children’s films and TV shows such as Star Wars: Clone Wars or Monsters Inc

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Stop frame animation which is created by taking hundreds of pictures of real world objects or people and then linking them together as frames for a video. When these images are played in quick succession they give the illusion of a moving image. This is the same concept as making a normal video whoever with stop frame animation you can seem to bring inanimate object to life.
 Another style of stop frame animation is called claymation which refers to creating an animation using clay models changing their positions ever so slightly between frames, effectively bringing the models to life on film.

There are also different techniques within animation such as Movement, Masking and Morphing. One of these which is fairly self explanatory is Morphing, making one image change to another. this is done with an animation tool called shape tweening.

Using a selection or even all of these multimedia elements helps to engage the user by giving them a multitude of objects to provide visual or audio stimulation as well as giving the user the option of interacting with the site. In providing this interaction the user feels more entertained and engaged rather than simply viewing multiple pages of plain text. Failing to keep the users interest can, and most likely will, result in losing the user to another site that features more entertaining images, colour schemes or videos. 

Animation can be used for almost any purpose such as advertising, creative art, entertainment (films, TV cartoons), educational shorts or interactive programs and scientific visualizations. Examples of these can be seen on television, online, in classrooms and in professional offices.
In all of these different fields, the choice to use animation was extremely beneficial due to the fact that no matter what a persons age, the bright colours and amusing visuals work to hold the attention of the viewer which, in turn, increases the amount of information that a person will take in as they are actually paying attention and are interested in what is going on in the video. Also in terms of advertising you are selling an idea, a fantasy, which is much easier to do when the rules and laws of the real world do not apply.

M1,

Persistence of vision;
There have been theories for what is persistence of vision although there is no definite scientific evidence. One is that when viewing multiple images shown in quick succession they can appear to be moving because of the fact that for a split second after you see an image it is retained in the retina and so when followed by the subsequent images in quick succession gives the illusion of a moving image.

In the myth of persistence of vision it is believed that the human perception of motion is a direct result of the persistence of vision phenomenon however this theory was debunked by Max Wertheimer i n 1912 when he first described the optical illusion of Beta movement.

The theory of Beta movement, which refers to the optical illusion which is centred in the brains ability to assume or perceive movement when shown multiple static images in quick succession.

One of the pioneers in the field of animation using persistence of vision is the British mathematician William Horner who invented the Zoetrope, or as he first named it the Daedalum (Wheel of the devil). the Zoetrope featured the placing of a strip of images on the inside of a spinning open top drum with slots cut out of the side. If you look through the slots when the drum spins the picture on the inside appears to move.



P5 Factors for consideration



P5
When creating animations for web the biggest factors are file size, file compatibility with various browsers and ease of loading. Ease of loading is an important one to consider as if the entire web page is slowed simply because of a cumbersome animation; users will soon lose interest and look elsewhere and as many users will have varying connection speeds their loading times may already be about as long as they are willing to wait to view an animation. After that you would consider user interaction and how to keep these animations or functions interesting as well as positioning and dimensions because a poorly laid out site can detract from any images or animations on the site that would otherwise be quite impressive or entertaining.

One way of both keeping things interesting and helping to reduce loading time is rollover animations, rather than having something constantly playing that will slow loading times, the animation only becomes active once the user interacts with that particular image or button. Examples would be interactive menus, small embedded games, animated site logos and web banners that react to the users’ cursor.

Another factor is taking into account that not all people will be viewing your web page on a computer, so compatibility with multiple hardware formats should be included; such as PDA/smart phones and tablets/ipads.
When it comes to cross hardware compatibility, considering apple products, specifically the ipad and iphone, should be a given as they do not use a lot of the same software as windows and android devices. For example the ipad, iphone and mac do not use Adobe flash and therefore animations that are created in flash will/may not work on these devices.