Flash as Advanced Tutorial: Implementing dynamic Blur effect

Dynamic | tutorials

In some of the titles or MV animation we often see a very bright blur effect, very visual impact. Most of the high quality of fuzzy effects are used in bitmaps and other software (such as: Photoshop) processed before importing into flash for production. In fact, in Flash can also use its powerful scripting features to achieve dynamic blur effect (although the effect is almost: P).

Watch this example effect:

Production ideas:

Use the loop and Attachmovie methods to attach movie clips to the stage from the library and control their position and the change in alpha transparency.

Production process:

Step 1:

Start Flash, create a new movie, set the movie size to 450px*100px, the movie background color is dark blue, color code is #000033, frame rate 30fps

　　

Step 2:

Press the shortcut key Ctrl+f8 to create a new movie clip symbol named "Text." In the "text" scene, press the shortcut key T,CTRL+F3, and then choose your favorite font, font size, font color in the scene to enter your favorite letter (or symbol), and the letter in the "text" scene in the x, Y coordinates to (0,0). (Use font: Arial black; font size: 35; Color: white; Letter: I Love You)

　　

Press the shortcut key Ctrl+f8 to build a movie clip symbol named "Control". This is an empty movie Clip, intended to be used to set up code for control. Press the shortcut key Ctrl+e back to the main scene. Ctrl+l The library file, right-click the "text" Movie Clip, click the linkage up Linkage Properties panel, enter the Movie Clip link Identifier "text" (note: This is the use of Attachmovie A place to note for a function)

　　

Next, drag the empty movie clip from the library to the main scene and add code to it:

Onclipevent (load) {

var max = 10;//Declare variable max and assign it a value

var anglestep = 360/max;//declares a variable anglestep and assigns it a value

var rad = (math.pi/180);//declaring variable RAD. 1π=180 in mathematics, setting the Radian value shown in RAD at 1 degrees

for (i=0 I < 循环设置="">

_root.attachmovie ("text", "text" Add I, 10+i);

Use Attachmovie to append the movie clip with the link identifier in the library to the main scene with the new name "text"

Add I depth for I

}

Initialize some of the variables

d = 0;

Dstep = 0.15;

A = 50;

Astep = 1.25;

}

Onclipevent (enterframe) {

for (i=0 I <>

Dynamically set the movie Clip position attached to the main scene, Alpha transparency

225, 50 of these two numbers, the purpose is to make the letter I love you located in the center of the main scene (movie size 450px*100px)

_root["text" +i]._x = 225+d*math.cos ((anglestep*i) *rad);

_root["text" +i]._y = 50+d*math.sin ((anglestep*i) *rad);

_root["text" +i]._alpha = A;

}

a+= astep;//a Additive

D+=DSTEP;//D Additive

if ((a> 50) | | | (a <-5)) {

When judging a> 50 or a <-5, Astep *=-1, Dstep *=-1;

Where-5 This number controls the length of time required for letters to be visible from unseen. You can try to adjust the 50, -5 of these two experience.

Astep *= -1;//is equivalent to astep=astep*-1;

Dstep *= -1;//is equivalent to dstep=dstep*-1;

Astep *=-1, Dstep *=-1 The purpose of this setting is to make the letters produce

Clear → fuzzy → invisible → fuzzy → clear process

}

}

At this point, the code is set up, ctrl+enter can watch the effect of dynamic blur.