Thanks for the replies so far...
I am now using BitmapData.draw() ( and source_mc._visible=false + moved
offstage ): it run a little faster than before. And only seems to choke when
the browser is maximized at higher resolution ( around 1280x1024 ), maybe I
am knit picking?...
But, I think something is not going right in my code and that the draw loop
could be optimized. The code now looks something like this:
// code
private function animationLoop( ):Void{
if ( lineCounter > code_lines.length ) lineCounter = 2
if ( lineCounter == 0 ) {
field_txt.text = code_lines[lineCounter]
} else { field_txt.text = field_txt.text +
code_lines[lineCounter] }
myBitmapData = new BitmapData(source_mc._width,
source_mc._height , false, 0xFFFFFFFF );
target_mc.attachBitmap(myBitmapData, 10);
myBitmapData.draw(source_mc);
lineCounter ++
}
// code
I am finding it a little odd, that I am making a new BitMapData object every
interval and tried moving it outside the loop but got strange results (due
to my ignorance): every time 'attachBitmap' ran, it seemed the old bitmap
was not being cleared.
+ also changed the font to Verdana, tried various interval times, but
neither of these did much to improve the situation. Anyone think I can
squeeze a little more FPS out of this one?..
http://www.kurst.co.uk/transfer/2/ - Using BitmapData
http://www.kurst.co.uk/transfer/1/ - and not
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan Rogers
Sent: 04 September 2006 19:55
To: Flashcoders mailing list
Subject: Re: [Flashcoders] Slow performance
If you're looking to improve performance and keep the speed of your
animation, you could experiment with BitmapData.draw() and render a bitmap
copy of a hidden text movieclip. I think the bottleneck is mostly due to
the heavy font vectors. If your font movieclip was hidden and/or moved
off-stage, you could probably get away with a single BitmapData object set
to the size of the screen, redrawing each time the text changes.
-Danro
On Sep 3, 2006, at 1:19 PM, Marc Hoffman wrote:
> I'm seeing a window full of text (Firefox, Win XP Pro) -- is this what
> you intended? If so, that's a HUGE number of vectors to redraw so
> rapidly. Furthermore, by using a serif font you're probably doubling
> or tripling the number of vectors, so try the simplest, non-serif,
> mono-stroke (consistent stroke thickness) font you can, such as
> Verdana. And of course lengthen the redraw interval.
>
> Marc
>
> At 12:24 PM 9/3/2006, you wrote:
>> Hi,
>> setInterval each 10ms might be a bit overkill.
>> grtz
>> JC
>>
>>
>> On 9/3/06, kariminal <[EMAIL PROTECTED]> wrote:
>>>
>>> Hello All...
>>>
>>> My flash movie fills the whole browser window. If the window is kept
>>> small performance is great, however when I maximize the browser
>>> everything slows down. This is a simple effect which I think should
>>> run at a good speed regardless. I've uploaded a sample here:
>>> http://www.kurst.co.uk/ transfer/
>>>
>>> And the animation code is as follows:
>>>
>>> //CODE
>>>
>>> private function stopAnimation( ):Void{
>>>
>>> clearInterval( animationIID );
>>>
>>> }
>>> private function restartAnimation( ):Void{
>>>
>>> stopAnimation();
>>> animationIID = setInterval( this, "animationLoop" ,
>>> 10 );
>>>
>>> }
>>> private function animationLoop( ):Void{
>>>
>>>
>>> // make sure we always keep the counter within the
>>> length of the array
>>> if ( lineCounter > code_lines.length ) lineCounter =
>>> 2
>>>
>>> // print the text
>>> if ( lineCounter == 0 ) {
>>>
>>> field_txt.text = code_lines[lineCounter]
>>>
>>> } else { field_txt.text = field_txt.text +
>>> code_lines[lineCounter] }
>>>
>>> // ready counter for the next line
>>>
>>> lineCounter ++
>>>
>>> if (field_txt.maxscroll > 1 ){
>>>
>>>
>>> pageCounter ++;
>>> field_txt.text = "";
>>> stopAnimation();
>>> clearInterval( clearIID );
>>> clearIID = setInterval( this,
>>> "restartAnimation" , clearIntervalTime );
>>>
>>> }
>>>
>>>
>>> }
>>>
>>> //CODE
>>>
>>>
>>> And I've also uploaded a copy of the whole class here
>>> http://www.kurst.co.uk/transfer/textComponent.as
>>> Any tips on optimizing this one are welcome...
>>>
>>>
>>> Regards
>>>
>>>
>>>
>>>
>>> Karim
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>>
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>> _______________________________________________
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>>
>> Brought to you by Fig Leaf Software
>> Premier Authorized Adobe Consulting and Training
>> http://www.figleaf.com http://training.figleaf.com
>>
>
>
> _______________________________________________
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>
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> Premier Authorized Adobe Consulting and Training
> http://www.figleaf.com
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