ActionScript 2.0 :: BitMapData And Mx Transitions: Flash Performance
Sep 10, 2008
Been going crazy the last two days trying to figure this out. Can't get my head around it, so I thought I would ask here. I've programmed a fairly simple site in AS 2.0, using a couple of old functions like mx.transitions (still learning myself AS 3.0). The site is outlined like this:
- A main MovieClip on _root called mc_scene containing four different movieclips (doing this because I need to be able to run the Flash fullscreen and center the content).
- This main MovieClip contains a simple header movieclip, a footer movieclip, a MovieClip holder (for loading images) and a Meny for controlling the different sections and loading.- Inside the main MovieClip there's four frames each containing a holder and buttons according to each section. - Each section movieclip contains some manual tweens and 1-7 (differs from each clip) buttons. - On the main _root scene I'm using BitMapData to fill a patterened background and centering mc_scene.
[Code]...
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[code].....
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[Code]....
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PHP Code:
container.button01.onPress = function() {
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And I've also tried using
PHP Code:
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Nov 11, 2009
Steps to reproduce my problem:Create simple dot DisplayObject in flash
dot.graphics.beginFill( color);
dot.graphics.drawCircle( 0, 0, 2 );
dot.graphics.endFill();
Draw dot to bitmap many times a frame
bitmapData.draw( dot, null, null, "normal", null, _smoothing );
Test FrameRate in combination of browsers,flash plugin versions on Win32
Expect:
Framerate to be close in most cases
Observed:
I am seeing a 25% decrease in framerate under IE7 using Flash10b.ocx(10.0.22) and 50% decrease in framerate using Flash10c.ocx(10.0.32). PLugins under FireFox, Safari and in Mac OSX don't exhibit the same slowdown.
I would like to get help/confirmation on a performance problem that I see in Internet Explorer. The Adobe and Flash community is great on the Internet but I have been surprised to see no information on this, just a few reports about movie playback on 10.0.32 vs. 10.0.22.
My guess is that in IE flash plugin is passing draw calls to Win32 and that this is slow.
Instead of drawing each time on the bitmap using draw, cache the draw calls to a bitmap and use CopyPixels. When I do this the performance is the same across browsers, within 10%.
bitmapData.copyPixels(dot.bitmapData,dot.bi tmapData.rect,new Point(dot.x,dot.y),null,null,true);
Loop I am using:
function enterFrame(e:Event) {
bitmap.lock();
for (var i:int=0;i<particles.length;i++) {
[code]....
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Jun 24, 2010
Well I'm having a hell of a time trying to get my CPU down under 45% when running my current application. I've tried all sorts of optimization tricks and tips with little success and I'm at a point now where I need a fundamentally different approach.
Problem and Current Approach In the main view of my application I have a single enterframe handler.I have my frame rate down as low as 10 fps. This handler notifies 16 seperate movie clips to draw wedges of varying angles using Lee Brimelow's wedge class. So, 16 times every enterframe, I have 16 movieclip graphic clear, begin fill, draw wedge, endfill all being co-ordinated by my single enterframe handler.
[Code]...
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Aug 16, 2010
I have a movieclip wich has a simple movement of a simple shape. This movieclip is copied many times to create a graphical effect. As the number of copies, or the complexity of the movieclip increases, CPU usage goes up. As from 90 copies, when I keep moving the mouse over the swf movie in a circle, playback stops (hangs). When the mouse movement stops, the swf continues again at the right position, as if calculation has continued, but updating the display has not. Now this is a quadcore pc, and we're 2010. I can't believe or accept that 100 mc's is the maximum number of movieclips that can be rendered. The obvious question is what can be done to optimize CPU performance ?
I'm using AS3, flash player 9.
Movieclip is a simple rectangle shape which moves along 1 axis.
var myLinkage:Class = Class(getDefinitionByName(getQualifiedClassName(McToRepeat)));
var newMC:MovieClip = new myLinkage();
containerMC.addChild( newMC );
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