Difference between revisions of "Doc:Animation Basics"

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''Note to the reader: Please be patient. It may take a few days to finish the initial draft.''
 
''Note to the reader: Please be patient. It may take a few days to finish the initial draft.''
  

Revision as of 18:57, 12 August 2007

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race with the devil sony dcrpc55eb regolamento venatorio 2004 calcio giochi londra hotel 4 stelle testi di maron 5 chat belli si nasce speranza per sin city asus w3400n rolie polie olie blues journey john belushi film dvd del pita de topfield 4000 samsung sf 5100 una vez mas durex nuoro karena cinta mp3 thomson dvd recorder genoveffa di brabante video giuseppe povia iss3 scanner hp scanjet 3800 l1945a l isola che non c e bennato dvd vergini -r verbatim half-life 2 trasporti ventotene macy grey lotta al supermarket foto di principessa diana convertitore valuta quando un padre e un coglione beautiful soul di jesse mc cartney genk suoneria x cellulare key polsat globalsat br305 amd 64 tray maxtor one touch 2 guitar calculato 1 1 crack sexytv religiosi sanyo hifi passeggino seggiolino navicella golosa king africa balentia san tommaso hamlet antenna esterna mmcx appunti microeconomia sito autostrade galbusera settimanale chi fantastica storia lultimo drago cerchiamo uomo matrimonio kevin costner lemos litio aa batterie per foto e video barbecue set valigetta voyager usato m40x 244 vetrerie da laboratorio gatto puzzolone isdn modem us robotics moder times j five puntatori mouse divertenti foto hard con animali vendero setnja golf sportline tdi 2000 geometria sacra decreto legislativo 30 dicembre 1992 suse linux professional 9 3 stampanti hp per a3 mont st michael custodia ipod shuffle beegees staying alive mp3 frittella di riso congedi per malattia figli travestiti all aperto piemonte nek jon jacobs midi ci sarai lexmark 16 mac mini computer harvey link decapitazione dvd portatile lettori waitec vision madamigella oscar www immagini it lu rusciu de lu mare stupra kathrine and the waves elisa gulinello glen hansard gamepad action pc trasmittenti il cane capellone fiat punto cabrio s vespro siciliano de viaje de sin bandera casa vacenze prima comunione sfondo per bigliettino della s cresima rs 110 mario bros gratis smeg anni 50 frigoriferi treniitalia brani canzoni westen fiat sporting 2000 filmato morte enzo baldoni giorgos tsalikis foto cantanti audigy 5 dive tv nude dj bum bum without you planimetria case condizionatori ad acqua breve pinnacle studio media suite 10 rotte barbarianbob mi sangre juanes coreldraw graphics suite 12 pagine piu cercate in internet cuffie fili armadillo knight 1 sesta di seno sigma 24 canon pantaloni uomo multitasche trough the barricades femmine da intrattenimento bari foto nuove elisabetta canalis www cane carlino it batteria per mpx200 maxtor esterno 250gb torra imports via cadorna sd 140e daniele winits strategies italia srl alps lodi fiat sava xanadu continente nero neo collana fai te la gioia della vita videocamere mpeg voglio vederti hawai cose fare michel berg annunci ragazze vogliose perales hp 45a ti senti sola voli faenza masterizzatore dvd - esterno credenze la guerra del fuoco scrip wind oiled egitto sharm trading part time psp nitro concorsi per periti industriali baci e abbracci proliant ml310 g2 flip flop and fly tutte posizioni del sesso canon ip 3000 hc40 sony ragazza grugliasco agp socket 775 ddr2 ferrara citta d-link - scheda di rete wireless pcmcia hitachi dvd cam per un pugno di spade o zone dragosta fakes celebrita honda milano rapowe policastro gps map desree im kissing you www cucina it prezzi trenitalia it assassinio sul tevere foto di jenson button webmail bellsouth net donna in gravidanza ha hash www ansa it barbie alla ricerca del tesoro travel to rhodes domenico rufino immagini di borsa fresa trzeci wymiar zapomnij o tym splinter cell 3 (Draft) Note to the reader: Please be patient. It may take a few days to finish the initial draft.

Introduction

Creating an animation in Synfig is really easy: It basically means to change a drawing - you just need to create the first state and the last state of a change, and Synfig will take care of the steps in between.

Let's have a look at a simple example. Consider a moving light similar to the one in front of the KnightRider car. Drop the realism and you get a circle that is moving from the left to the right, and back. In other words, you need to create three 'steps' or 'stages':

  1. The circle is on the left.
  2. The circle is on the right.
  3. The circle is back on the left.

Let's do it.

Setting up the workspace

Start Synfig Studio, and create a new file. A dialog called 'Properties' will appear. Give your new file a name and a description, and then click "Apply" (don't click "Save" yet -- we're not quite done with the 'Properties' dialog). Make sure to edit 'End Time'. The strange looking '0f' will change to a more familiar presentation as soon as you click it. Set this to 2 seconds.

synfig_tut_1.png

Now create a simple black rectangle that will serve as our background. It's not necessary to make it cover the whole canvas.

synfig_tut_2.png

We now need a circle. Change the painting color to red, and draw a circle. It doesn't matter if it's not perfect: You can edit it. Activate the 'Normal' tool, and click the circle. It will go into a sort of editing mode which is easy to detect by the small green dot in the middle and the white rectangle around it. You can move the red circle by grapping it on its green dot in the middle.

synfig_tut_3.png

This are the first steps to draw an object and to move it, but not yet an animation, you may say. Indeed. Let's have a look how this works.

Adding movement

In the beginning, you entered a value of 2 seconds in the 'Properties' dialog. Due to this, your canvas window (the one where you draw) got additional capabilities. There's a grey time slider, for instance. You can click on it, and a small orange indicator will appear but nothing changes. This is because you need to switch to 'Animate Editing Mode' first by clicking the green dot just to the right of the grey time slider. You will note that your canvas gets a red outline; it reminds you that changes to your objects now affect your animation.

synfig_tut_4.png

Previously, three 'steps' or 'stages' were mentioned. These are represented by so-called 'keyframes' (Just in case you're familiar with video encoding: No, that's not the same!). A keyframe is an image in time where something important happens with your objects.

Click the keyframe tab -- this is the one with the small key in the 'Params, etc.' window -- to be able to edit keyframes. Now click the small 'plus' sign and you should get a new entry in the list displaying '0f, 0f, (JMP)'.

params.png

If this didn't happen, you made something not mentioned so far. Close your file and start again.

If the entry appears, go to the '1s 0f' mark in the timeslider. The small orange indicator should move there. Then add another keyframe by clicking the small plus sign. Repeat the process with the time slider indicator set to '2s of'. You should have three keyframes in the list, now.


The s's and f's: Understanding the Timeline

By now, you may have figured out what those mysterious '1s 0f'-type marks represent. They indicate a specific point on the timeline, expressing a location in terms of seconds (s) and frames (f).

Each second is divided into 24 frames, much like a meter on a measuring tape is divided into 100 centimeters. The frame markings begin at zero (0) and go up to 24, whereupon a new second is entered and the framecount returns to zero.

For example: "three frames into the sixth second" of an animation using this timeline notation would be "5s 3f." Why "5s" instead of "6s"? Because we always begin counting from zero.

The Keyframe List

The keyframe list is rather easy to understand: It displays 'Time' which is basically the start time, 'Length' which is self-explanatory, 'Jump' which we'll cover next, and 'Description' which is, again, self-explanatory.

Now what the hell are the entries called '(JMP)'? In fact, these are links just like web links: Click them, and the indicator in your timeslider will jump to the correct time.

You can use this to edit your image for a given moment in time. For instance, you can now jump to the first second, and move the red circle to the right. There! You made your first movement; your first animation with Synfig!

synfig_tut_5.png

You wonder where the animation is? Just click to arbitray position on the timeslider: You will note that the red circle is in positions where you didn't move it to! What happen? Snyfig figured out what you would like to do, namely move the circle, and draw all the images between these states. Each image will later make a frame in your animation; and the circle will appear to be moving.

Rendering your animation

Before you can see your animation, you need to process (or render) your work. There are two ways to do so; using the synfigstudio (what you have been using so far), or the command-line program synfig.

To do so, close the animate editing mode by clicking on the red dot in the timeline editing widget, and save your file; for instance under the name BasicKnightRider.sif. Then press on the > symbol in the upper left corner of the image window to open the menu, open the File menu and click on the Render item. Change the target filename to BasicKnightRider.gif in the same location you saved BasicKnightRider.sif and choose your render settings, then click Render. Depending on your processor speed it should take a few moments, but finally the image window status bar should say "File rendered successfully".

Open BasicKnightRider.gif in Firefox or another application that is able to show animated gif's. However, Firefox will replay the GIF all the time which makes your short animation a rather long one. If you're now seeing a red circle moving from the left to the right and back: Congratulations! You just made your first animation!

Note: you can also preview your animation. Press on the > symbol in the upper left corner of the image window to open the menu. There choose File->Preview.

synfig_tut_6.png

If you would rather use the command line instead of the menu to render your animation, then open a terminal (On Windows, go Start -> Run -> type cmd<enter>), change to the directory you saved the file, and type something like

synfig -t gif BasicKnightRider.sif

WARNING: The version you are using may not support the GIF output format at the moment, it depends on the version and compilation settings.

A few messages appear that don't matter right now. Depending on your processor speed it should take a few moments, but finally a line like

BasicKnightRider.sif ==> BasicKnightRider.gif: DONE

should appear, then you are done and can view your animated gif using firefox or another program as mentioned above.

Conclusion

Of course, the position of an object is not the only thing you can change with Synfig Studio. Other possibilities incude its size, its outline, its color, etc. Synfig comes with several example files that should let you dig deeper into the possibilities.


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