Flash CS3 frame-by-frame animation tutorial

<pageby nominor="false" comments="false"/> This entry is part of the Flash tutorials.

Introduction

• Frame-by-frame animation means to display one image after each other and that creates the illusion of a movie.

Learning goals

Learn basic Flash 9 (CS3) frame-by-frame animation, one kind of Flash animation.

Save a frame-by-frame animation as reusable movie clip

Prerequisites

Flash CS3 desktop tutorial

Flash layers tutorial

Flash drawing tutorial (for starters some of it, at some point you'll have to dig into it a bit)

Moving on

The Flash article has a list of other tutorials. You probably should continue with the Flash motion tweening tutorial

Quality

This text should technical people get going and may not be good enough for self-learning beginners. It can be used as handout in a "hands-on" class. That is what Daniel K. Schneider made it for...

Level

It aims at beginners. More advanced features and tricks are not explained here.

Materials (*.fla files you can play with)

http://tecfa.unige.ch/guides/flash/ex/frame-by-frame-intro/

The executive summary

Purpose: Frame-by-frame animation gives you very detailed control over the movie (since it's the technology used to make animation pictures until recently before different 2D and 3D computer animation techniques came into the existence). Disadvantage is that frame-by-frame drawing is very time consuming work. Therefore, most often, designers use a combination of frame-by-frame animation and interpolation techniques (called tweening in Flash lingo). Often, frame-by-frame animation is used to animate single objects that in turn can be used as part of larger Flash animations. A typical example are buttons that highlight when you click on them.

Executive summary of the procedure:

• Insert drawings in various keyframes
• Modify these drawings a little bit over time

The timeline and keyframes

The principle of frame-by-frame animations made with drawings is that you draw various versions of the same objects in different frames. These are then displayed one after each other in rapid order (most often between 10-25 frames / second).

A frame is a drawing that is displayed at a given time. In the timeline, each stop in each layer of the timeline is a frame and they are numbered from 1 to whatever length your animation has. Let's start by introducing the meaning of a few symbols in the timeline. We later will come back to these.

If you feel that display of timeline elements is too tiny, you can fix this with the time line options (little pull-down menu in the upper right). This menu also allows displaying a preview of the animation (but that takes up space of course).

Time line options pulldown menu

When you start drawing with Flash, everything is drawn by default into a first frame in layer 1.

The default keyframe is frame # 1

E.g. if you insert a letter, for example, you will see something like in the screen capture just above.

• The first frame in the timeline will have a dot inside. So if you see a frame with ".", it means that there is some content inside.
• The playhead showing the current frame (the red rectangle) sits on top of frame one.

There are other symbols that can appear in the timeline and we will introduce them later as we need these.

There is not need to learn about the timeline when you just learn how to draw with Flash. However, the purpose of Flash is animation and interaction. So let's start talking animation.

A simple letter after letter animation

The *.fla, *.swf and *.html files flash-cs3-frame-by-frame-hello.* can be found at http://tecfa.unige.ch/guides/flash/ex/frame-by-frame-intro/

Now let's do a most simple frame-by-frame animation.

We will produce an animation that will display the word "HELLO", one letter after each other. The principle is quite simple: We will insert new letters in new keyframes. One could do this by inserting "H" into keyframe 1, then add "E" to keyframe 2 etc. We will do something slightly different here, i.e. we insert a keyframe every 5 frames.

Step 1

We insert the letter "H" in frame 1 (alternatively you may start in frame 5, i.e. the user won't see the "H" when the frame loads. Anyhow, later-on you always can add extra empty frames.

Steps 2 to 5

Now we repeat this procedure by adding new letters in new frames. So first we will transform frame 5 into a new keyframe. The important thing is to understand that there are two kinds of new keyframes:

1. Blank ones that will clear the stage, i.e. the objects will be gone. That's not what we want here.
2. Keyframes that carry "forward" contents of the keyframe before. We will use this one.

The procedure is the following (see the picture below)

• Right-click in a frame, then select Insert Keyframe (not insert blank keyframe).

Editing keyframe #5

Repeat this, until you incrementally spelled out "HELLO".

Step 6

Test if it works:

• Firstly you simply can move back and forth the playhead (red rectangle that sits on the top of the timeline)
• Then you can test the movie (menu Control->Test Movie). This will open a up a new window where you can see more or less what an end-user would see.

Step 7

Now we want to tune a few things:

(1) You may not be happy that the movie starts with letter "H" already displayed. Right-Click on Frame 1 and Insert Frame (not a keyframe!). Then drag the black dot in the new frame 1 to frame 2. Finally insert a few new frames by click-right on frame 1 again.

(2) Your Movie may be too slow or too fast. Flash animation is not time-based (as in SVG for instance) so you have to fix a frame rate. You can change the frame rate (number of pictures shown/second) in two ways:

• Click on an empty spot on the stage and change the rate in the properties panel that you should see below
• Menu Modify->Document (CTRL-J)

For this animation about 15 frames are about right I think.

(3) You also may align the letters. But you have to do this in the same way for each keyframe, else they will jump around, which actually may be an effect you like.

To align all letters in all frames: Click on the Edit multiple frames button.

Select all frames

• Then, you can select the frames you want to edit together by moving the "[" "]" sliders on top of the timeline
• Then select letter-by-letter groups, then use the align pane (Window->Align), but untick To stage.

This tool is quite dangerous, since it's hard to control what happens in each frame. Make sure to save your file before you engage in this ! Anyhow, next time make sure to place your objects where they should be.

Step 8

Now you can publish this as a web page.

• Make sure to save the animation in some place you can remember, because Flash will put the exported Flash, HTML and JavaScript there.
• Then, click on an empty spot in the stage and click the "Publish Settings" button or menu File->Publish Settings.
• Click the publish button when you are happy with the settings. It will put all the necessary files in the same directory where your *.fla file sits.
• Then click on either the Flash *.swf file or the *.html file and see if it works.

As an exercise, you now can add extra keyframes after frame 1,5,10, etc. and move up or down letters. Alternatively, read on ...

Frame-by-frame shaky animation

Sometimes, e.g. in trailers or in little advertisement boxes you can see some sort of shaky or jittery icons. Let's do one.

The *.fla, *.swf and *.html files flash-cs3-shaking-hello.* can be found here: http://tecfa.unige.ch/guides/flash/ex/frame-by-frame-intro/

Step 1 - change stage size

• Define size and background color of your stage (I use 400x200 px this time). To do so, click with the selection tool on an empty spot of the stage and change the properties of the stage in the properties panel.

• This time, we will use two layers, so create 2 layers, call one of these "hello".

Step 2 - draw a hello word

• In the "hello" layer, draw the word "Hello" with the pencil for a change
• Select the pencil
  • Put the Pencil tool into "Smooth mode".
  • Put Flash into object mode (circle in the options area of the tools panel)
  • Select a wide stroke (15px or more)

Go back to the drawing tutorial if you don't how to use object mode and how to set the smooth control for the pencil.

Step 3 - fix the hello word

• You may have to fix the Word "Hello", since despite smooth mode your drawing may not be so hot.
• Firstly use the Free Transform tool to adjust size, rotation, etc. of each letter.
• Then use the Subselection tool to fix certain letters, probably your "o" will be ugly.
  • To do good work, you need to set magnification to something like 400 (Menu View->Magnification).
  • Then you can drag around the distortion points' (squares) and kill some of these and/or move the curve control handles (dots attached to a line).
  • You can read further explanation about envelope transforms
• Finally select all letters with the selection tool and center them. You may also may make the whole drawing bigger or smaller (just change the "W" property in the properties panel while everything is selected, i.e. see the screen capture below).

So now you should have (very) roughly something like this:

Hello with the pencil

Step 4 - Draw an oval

• Draw an oval or something around the "Hello" word if you want. Use another layer for this and lock the "Hello" layer while you do this. See the Flash layers tutorial if you don't know how to use layers.
• Again, use the subselection tool to fine tune, if you feel like. Btw if you are bored with drawing simple shapes, you can have a peek at the Flash object transform tutorial.

Step 5 - Make a new keyframe for both layers

Create a new keyframe in frame 2 (as explained above).

• Right-click; Insert Key Frame for the "hello" layer
• Right-click; Insert Key Frame for the "oval" layer
• Now you should have a copy of both the "hello" word and the Oval in the new frame.

Step 6 - Make changes

• Now you can make slight changes to your drawings in frame 2 (so make sure that frame 2 is selected !)
• I changed color a bit for both the oval and the hello word.
  • Unlock the "hello" layer if it's still locked.
  • "Edit->Select All"
  • Change the color in the properties window
• Then twist a little bit some letters and maybe the Oval
  • You can do this for instance with the subselection tool or the Freetransform tool. (I only used the subselection tool and basically turned a few Curve control handles).

Below is a picture of the slightly altered graphics:

Hello with the pencil - second frame

Step 6 - Add other frames

Just two frames will do, but you can add more of course :)

This example was a bit more professional. We tried to select good stage size and made some efforts to get the drawings right.

Rocket science

Frame-by-frame animation is also quite useful if you want to create animated objects that you then can reuse in another animation as a movie clip.

The *.fla, *.swf and *.html files flash-cs3-rocket.* can be found here:http://tecfa.unige.ch/guides/flash/ex/frame-by-frame-intro/

I imported this rocket from Uncyclomedia Commons:

http://commons.uncyclomedia.org/wiki/Image:Rocket.svg

• It's an SVG file that I first opened with Illustrator.
• I then copy/pasted it to Flash. See the Clipart article (i.e. the section on Importing to Flash).

Now we would like to animate the flames of this little rocket.

Step 1 - Break the rocket into components

• Break the rocket apart (right-click->Break Apart). You now should see various rectangles drawn around its various shapes.
• Flames are made with 2 shapes (the two rectangles in the lower right)

A broken apart imported SVG rocket

Step 2 - Put the flames into another layer

The easiest way is to use distribute these to other layers

• Select the 2 flames (hold down the SHIFT key and click on the orange and yellow parts
• Then Right-click->Distribute to layers
• Rename the two layers you created.

Now you should have something like in the screen dump below. I am positioned in the yellow flame layer and show the other two as outlines.

Rocket with flames in layers

Step 3 - Duplicate frame 1 to frames 2 and 3 in these two layers.

• As explained above, in frame 2: Right-click->Insert Keyframe. Do this for each of the three layers
• Repeat this for frame 3.

Step 4 - Change the flames for each frame

• I simply used the Free Transform tool and dragged the rectangle towards the lower right.
• By doing this you also might have moved the rectangle itself, just push it back underneath the rocket... (either with the arrows, or with the selection tool).
• In order to get this right, you should each time put all the other layers (rocket plus one of the flames) in outline mode with the layers tool.

Rocket with flames in layers

Step 5- Tuning

• The animation is now a bit too fast. We would like to get the kind of effect you see in old and cheap cartoons on TV.
• If you wish you can drag the keyframes (each dot to the right). I made a keyframe in every 5, but I also adjusted the Framerate to 30/second. That's good TV quality. (click on workspace and adjust in properties panel)

Rocket frames stretched

• Then you also could improve drawing of the flames (see the Flash object transform tutorial and/or add more keyframes. Finally, you could add motion tweens between the keyframes. I didn't do this since motion tweening is not part of this tutorial.

Step 4 - Test and publish

• Test and enjoy :)
• Publish

Step 5 - Export as a video clip only

File->Export Movie will just save a *.swf Flash animation file (no HTML and JS).

There are two ways of exporting an *.swf movie.

• "Normal", i.e. compressed. This means that when import this flash file into another flash file, you can't edit the object anymore.
• "Uncompressed". This means that after you import the rocket you can edit it somewhat. To get this option, untick Compress Movie in the settings dialog that will pop up.

Step 6 - Turn it into a movie clip symbol (optional)

• You also can turn this whole animation into a movie clip symbol. This is best strategy for you if you want to build a library of fully editable flash movie clips you can import into other animations.
• Select all layers and frames (click on the first layer, then SHIFT-click on the last). Make sure that every frame and layer in the timeline is black
• Copy all the frames (everything) Menu Edit->Timeline->Copy Frames
• Menu Insert->New Symbol. Tick the Movie clip option and give it a good name, e.g. "Rocket".
• Then you should be in Rocket editing mode and just see "Layer 1" on top
• Put the cursor in the first frame
• The paste the whole rocket code: Menu Edit->Timelines->Paste Frames

You now should see something like this:

Rocket animation made into a symbol

Next you can copy this symbol to another flash file which you may call my_library.fla. We just killed everything in the file (except the symbol) and saved it under a different name (flash-cs3-rocket-symbol.fla)

Result

Now we have two versions of rocket *.swf move clipt that we can reuse in another Flash animations

• flash-cs3-rocket.swf

• flash-cs3-rocket-uncompressed.swf. This version also has the improved flames

In addition we have file *.fla file with just a rocket symbol inside:

• flash-cs3-rocket-symbol.fla

Below is a short how-to, but you also can directly go and read the Flash motion tweening tutorial.

Reuse frame-by-frame animations as movies

The flash files we just created can be used as components in new Flash animation.

The *.fla, *.swf and *.html files flash-cs3-rocking-hello.* can be found here: http://tecfa.unige.ch/guides/flash/ex/frame-by-frame-intro/

Step 1 - Import *.swf files into the library of a new Flash file

• Create a new flash file (File->New)
• Then import stuff you made: File->Import->Import to library
  • Select the flash-cs3-rocket.swf file
  • Do the same with the flash-cs3-shaking-hello.swf file

You now have a nice rocket and a flashing hello in your library:

Hello and rocket movies in your library

Step 2 - Drag the symbols (movies) to the stage

• Drag the item in the library onto the stage
• Now your rocket is too big :(
• No problem. Use the Free Transform tool to make it smaller and to rotate
  • Hold down the SHIFT key when you resize it from a corner !

Here is the result:

Hello and rocket movies used

Step 3 - Learn about motion animation

Of course, now you should do a moving animation with these flashing objects. See the Flash motion tweening tutorial and before this enjoy the flying rocket:

http://tecfa.unige.ch/guides/flash/ex/motion-tweening-intro/flash-cs3-rocket-moving.html

Links

Example materials

Example files used (including *.fla source) can be found here:

http://tecfa.unige.ch/guides/flash/ex/frame-by-frame-intro/

• Click on either an *.html or *.swf file to see.
• Get just the *.fla file if you want to make modifications. The standard copyright of this wiki applies.