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1、MOTION GRAPHIC,IntroductionMotion graphics are graphics that use video and/or animation technology to create the illusion of motion or a transforming appearance.Motion graphics are generally short pieces of time-based visual media which combine the languages of film and graphic design.This can be ac
2、complished by incorporating a number of different elements such as 2d and 3d animation,video,film,typography,illustration,photography,and music.Common applications of motion graphics are film title sequences,animated logos at the end of commercials,lower-third elements,etc.Broadcast graphics are mot
3、ion graphics has a strong presence in television.Commercial graphics,entertainment,and show packaging graphics are just a few of the venues in which motion design is found.Some HistoryThere have been presentations that could be classified as motion graphics as early as the 1800s.Other sources,such a
4、s the 2003 Macworld Conference and Expo Web site,claim that it started in the 1990s.,Introduction contSaul Bass is amongst the most significant pioneer in animated graphic design,and that his work marks the true beginning of what is now commonly referred to as motion graphics.His work included title
5、 sequences for popular films such as The Man With The Golden Arm(1955),Vertigo(1958),Anatomy of a Murder(1959),North by Northwest(1959),Psycho(1960),and Advise&Consent(1962).His designs were simple,but effectively communicated the mood of the film.Sample:Vertigo http:/,Computer Generated Motion Grap
6、hicsThe term motion graphics originated with video editing in computing,perhaps to keep pace with newer technology.Before computers were widely available,motion graphics were costly and time consuming,limiting their use to only high budget film and tv projects.With the reduced cost of producing moti
7、on graphics on a computer,the discipline has seen more widespread use.With the availability of desktop programs such as Adobe After Effects,Discreet Combustion,and Apple Motion,motion graphics has become increasingly accessible.Motion graphics continues to evolve as an art form with the incorporatio
8、n of sweeping camera paths and 3D elements.Maxons CINEMA 4D is the industry standard for adding such effects,and is highly favored for its ease of use,integration with Adobe After Effects,and the addition of the MoGraph toolset.,Motion DesignMotion Design is the art of graphic design within the cont
9、ext of motion graphics such as film,video or computer animation.Examples include the typography and graphics you see as the titles for a film,or the spinning,three-dimensional logo at the end of a TV commercial.Although this art form has been around for decades,the graphics,the typography,and the vi
10、sual effects within these mediums have become much more elaborate and sophisticated.The dramatic elevation of this art form is largely due to technology improvements.A typical motion designer is a person trained in traditional graphic design who has learned to integrate the elements of time and spac
11、e into his/her existing skillset of design knowledge.Motion designers can also come from filmmaking or animation backgrounds.,Practical Principles Of Motion DesignMotion design application is an object oriented application.Most software package works by importing media files from your computer,camer
12、a or any other data storage medium.These can be still images in pixel or vector format,movie sequences and audio files.When creating a composition,you insert one or more of your media files.The files appear on the composition window,as well as in the timeline.Layers have properties which you can man
13、ipulate such as position(x,y and sometimes Z),scale,rotation,opacity,etc.Layers merge with each other by using transparency information provided by the alpha channel and blending modes,which change the way a layer affects the layers below.Almost all the modifiable properties can be keyframed,which m
14、eans that its value can be stored at certain positions through time.And this is one of the basic principles in computer animation,the use of the computer to interpolate values between keyframes through time.,Getting Started with Motion DesignStart with an idea(of WHAT you want to communicate)Make sk
15、etches(with the mouse,by hand,by tearing out sheets from fashion magazines,by photographing whatever feels right)Make storyboard before animating to visualise your ideaPlan the project/workflow(assets,separation in sub-files and scenes),Animation Aspects:ShapeChange in position never comes alone.Mos
16、t often,a spatial displacement is accompanied by changes in shape,color,and texture of the object(more precisely,of the objects perceived image).So,in the foundation of an animators skills lies the ability to persuasively combine different aspects of motion.Shape is perhaps most affected by an objec
17、ts actual motion,and its easy to understand why:both shape and position are spatial features,and when we put the object in motion as a whole,it is only natural to expect that parts of its contour will,to same extent,displace relative to each other.When this is neglected in computer animation,the res
18、ulting solid body motion may seem flat,rigid,mechanistic.Shaping motion is not always necessary or feasible,to prevent motion from looking monotone,some methods can be used to modify the motion pattern itself.,Animation Aspects:Colour&TextureDisney movies,creative as they are in animating the shape
19、of objects,are mostly static(although admittedly very colorful)in the aspects of color and texture.Modern computer technologies have transformed the flat color animation cels with uniform black outline into a way of stylisation rather then true technical necessity.Using computers,it is easy to algor
20、ithmically change not only the outline of the animated objects but the color and texture of their interior as well.With the overwhelming abundance of options,tools,and effects in graphic programs,once again the principle of referring to the physical world for guidance should be used.During motion,th
21、ey can vary the brightness and,to a lesser extent,saturation because of varying lighting conditions along the motion path can turn a monotonous linear motion into an eye catcher.,Non-linear AnimationThere are a number of useful tips to avoid monotony in motion.Perhaps the most generic piece of advic
22、e that can be given in this regard is:eliminate linearity.Although a static straight line has a certain aesthetic appeal due to its geometric perfection,a monotone linear motion is much less likely to work satisfactorily-in most cases,its simply boring.Try these few tips:Accelerate or decelerate all
23、 instances of motion.Constant speed adds a mechanic feeling to any movement.When you need some object to move and then stop,or to stay for some time and then start moving,gradual decelerating or accelerating is a must;but even for the cases where an object just keeps moving without stopping(for exam
24、ple,until it gets out of sight),adding some second derivative(which is the mathematical equivalent for the physical concept of acceleration)will make its movement more natural and engaging.,Non-linear Animation contUse curvilinear motion paths instead of linear ones where possible,even if the curve
25、is a simple circle.When moving an object along a linear path,rotating it at some degree during the shift will help to enliven it.Using rotation in combination with acceleration or deceleration will make a motion much more organic.Adding a third dimension to your motion may compensate for its too lin
26、ear character.For e.g.,a simple trick of enlarging or reducing an object dynamically thus giving it an impression of emerging or sinking relative to the plane of the screen.Again,this technique can be used in combination with linear motion,accelerating/decelerating and rotation.Color and texture eff
27、ects can,to some extent,mask the linearity of a motion.Combined with a gradual darkening/lightening,transparency variation,or a moving highlight such as that of Fig.2,even an absolutely monotonous progression may turn into an interesting experience.,Non-linear Animation contAbout any transformation
28、of an object,such as shape morphing or tweening,forces us to watch it with much closer attention,even if the object is immobile or involved in a simple linear motion.Transformations are something computers can do amazingly well,and creative opportunities are enormous.With linear motions,try,at the v
29、ery least,to make them as short as possible;avoid frustrating the viewer by pushing an object too far in a too monotonous manner.In addition,use a number of short linear movements of different objects instead of a single objects complex motion path.With a vector format such as Flash,you can use mult
30、iple instances of the same object moving simultaneously in different points and directions to create an impressive swarming effect with minimum bandwidth.Generally,always attempt to compress your movies timespan by partially overlapping consecutive animation stages so that the entire clip looks more
31、 dynamic and the possible deficiencies of each single objects behavior are less noticeable.,Dynamic DesignMotion can be thought of as a direct opposite of balance.A moving object,be it an explicitly moving cartoon character in an animated banner or an implicitly moving(but actually static)photo of a
32、 jumping athlete,makes us feel that not only this element is about to move but the whole scene will probably change.This instability,when obvious,adds a unique dynamic flavour to a design.However,dynamic not always means unstable;hardly any composition can be successful without subtle yet important
33、bits of motion spread over the page.,Abstract DynamismVisual simplicity(Fig.1)is an essential prerequisite for any objects dynamic function:we tend to feel that a too complex of intricate object would have troubles moving swiftly.Quite often by just simplifying the structure of an element,by streaml
34、ining it and by arranging its parts in a more obviously hierarchical pattern,we reduce the drag(in aerodynamic terms)and reveal the intrinsic dynamism in that element.Fig.1:Dynamic simplicity(the figure on the left is more dynamic than that on the right),Abstract Dynamism contDiagonality,rotation,no
35、n-horizontality and non-verticality all have,as weve just seen,a strong motion implication(Fig.2).Physical world around us offers plenty of examples showing that any non-architectonic object is either falling,or jumping,or simply unstable-in a word,dynamic.Fig.2:Dynamic rotation,Abstract Dynamism co
36、ntSlant,or skew,is a special case of rotation with some parts of the objectss outline still horizontal or vertical,and others,rotated at some angle(Fig.3).Here,the architectonic parts of the contour define the direction of the motion,while the slanted parts add force to it and make it more expressiv
37、e.Physical analogs for this feature would include deformations in moving objects caused by inertia or aerodynamic drag.It is this effect that makes sans-serif italic typefaces so expressively dynamic-especially when compared to serif italic which are not slanted variants of the roman faces,but indep
38、endent imitations of handwriting without much dynamism.Fig.3:Dynamic skewing,Abstract Dynamism contCurvature range leads to adding more explicit dynamism to the shape,as we go from a perfectly still and symmetric circle with its zero curvature range to expressive Beziers,and further on to the forms
39、made of straight lines and sharp corners(e.g.triangles and arrowheads)-which,indeed,represent nothing but the ultimate case of infinite curvature range.In the world of textures,dynamism is most often expressed by various blur themes,notably by the wind and motion blur texturizing effects.Indeed,anyt
40、hing moving swiftly enough appears blurred to the human eye,and imitating that blur by design means is a sure way to add dynamic flavour to the composition.(Fig.4)Fig.4:Dynamic texturizing,Abstract Dynamism contAsymmetry of any kind,be it in the aspect of form,size,or color,is another source of dyna
41、mic implication(Fig.5).In fact,what is called asymmetry is a single object version of what we call contrast for a couple of objects;much as contrast is perceived as such only when the objects are visually linked and not just dissimilar,asymmetry may only produce any effect when we get the feeling th
42、at the shape could be symmetric but isnt.Dynamic eye flows induced by pairs of contrasting objects are the subject of a next section.Fig.5:Dynamic asymmetry,Abstract Dynamism contNow,imagine that all of the features listed above do not apply,and what we have is a simple,perfectly symmetric shape wit
43、hout any slant,rotation,or blur.Even in this case some traces of dynamism are present in the object,and its easy to see that its inclination to move mostly depends on the objects proportions(Fig.6)-in other words,on whether its height is close to its width,or the dimensions differ considerably.Simpl
44、y put,a stretched rectangle is more likely to imply some dynamism than a square.Fig.6:Dynamic proportions,Abstract Dynamism contDynamizing a line A straight line(i.e.an ultimately stretched rectangle),even being perfectly horizontal or vertical,would have a relatively strong dynamic power.Much as a
45、naturally dynamic image introduces a line of motion,any visible line creates some dynamism.Such a line drives our eyes away,working as a railway to quickly travel from one part of the composition to another.The dynamic component of a straight line mostly depends on its ends are formed.An unconnected
46、 line(Fig.7,a)not only has no direction of its own.Only a small fragment of the line near the middle can serve as a guideline for the eye,while at the ends,any movement tends to slow down-we just dont see any reason to keep running along the line as soon as we note that the end of the path has nothi
47、ng to offer to our perception.,Abstract Dynamism cont Fig.7:Dynamising a line by playing with its ends,Abstract Dynamism contThe first attempt to accelerate the dynamism of the line by attaching some objects to its ends(Fig.7,b)is not too successful.The line ends failing to attract the viewers eyes.
48、By changing the method of attaching the line to an object:from grows out of to jumps into(Fig.7,c),although its still symmetric and therefore directionless,but more dynamic than before,it looks like the circles do not belong to the same object as the line;they work as separate magnets driving our pe
49、rception towards the ends of the line.(Fig.7,d)has the strongest dynamism of all samples studied in this section.Its left end pushes and the right end pulls,resulting in an powerful dynamic flow along the line,from left to right.It is also clear that if the right end simply hangs in the air as in Fi
50、g 7,e(or if the right circle becomes too large in d)then the dynamic force is pretty much diminished-even if we attempt to keep it up by adding an arrowhead on the loose end.,Eyeflow-DirectionEven in a seemingly static picture a trained eye can discern a complex pattern of interacting movements.When
