Re: [Flashcoders] smooth animations? AS3
I had a similar problem a short while ago and the solution is quite easy.
1.) You have to turn smoothing on (for library symbol too by checking
the checkbox in the dialog) by dynamic Bitmaps using smoothing
property.
2.) You have to set PixelSnapping to NEVER for Bitmaps by code.
3.) and the most important: just scale your Bitmap and/or
MovieClip/Sprite to a value near but not equal to 1, e.g. scaleX =
scaleY = 0.99!
By scaling your MovieClip you'll force FlashPlayer to calculate
subpixels! That is doing the trick!
Good luck!
Matthias
On Thu, Sep 4, 2008 at 5:57 AM, Zeh Fernando [EMAIL PROTECTED] wrote:
There are two things wrong with that example:
One, the square image you have has an outline. Because of the way Flash
renders outlines, it'll always snap perfectly vertical and horizontal lines
to the pixel, hence producing what looks like a hard bitmap move. In fact,
if you cut a diagonal line on the square and try to move it, you'll notice
only the vertical and horizontal sides will snap, which is pretty odd (but
expected behavior). Turning on stroke hinting actually forces this same
behavior for all lines.
And two, you turned on bitmap caching (use runtime bitmap caching) for the
object, which forces it to render as a bitmap on round pixels and then
transfer to the screen. Your object acts like a bitmap with
smoothing/antialias off.
So if you turn bitmap caching off and remove the outline and it'll work.
Check it out:
http://hosted.zeh.com.br/misc/test.swf
These techniques are only good for this example scenario though, which
probably isn't the problem that you're facing on your actual work (specially
if you're using images or text), so you'll have to test to see what's up
with your specific case.
But what I can tell you is, don't use runtime bitmap caching as default. Not
only because it'll force your renders to be based on the pixel most of the
times, but because it'll mess with your movies in a number of different ways
like forcing a large use of memory and garbage collection when not needed.
Don't get me wrong, it's a great feature to have, but it has to be used
sparingly and there's a reason why it's off by default.
Zeh
sebastian wrote:
ok I don't normally ask this, but I have made a very simple test flash
file with just one vector graphic and with Tweener I am moving it across the
screen; it doesn't move smoothly.
The code you will find in my flash file is just this:
package {
import flash.display.MovieClip;
import caurina.transitions.Tweener;
//main timeline AS file:
public class testas extends MovieClip {
public function testas () {
setAnimation2 ();
}
private function setAnimation2 () {
Tweener.addTween (testMC, {x:-1800, time:8000,
transition:linear});
}
}
}
the file with my FLA, which like I said has only one vector-item of a
square on the timeline is:
http://www.fountain-city.com/archives/test/testMotion.zip
Can anyone help me fix this?
Much appreciated!
thanks!
seb.
sebastian wrote:
also I tried replacing my PNG with a simple vector of a square, but it
STILL skips as it moves every pixel... surely I am still missing something
simple here...
hmmm
sebastian wrote:
Thanks Jack and Zeh,
I have the bitmap smoothing on on the image's properties in the library,
and I also turned on for every MC it is placed in 'use runtime bitmap
caching' but i STILL get staggered movement...
:(((
It's nothing complicated, aside from using the Tweener AS3 class, I'm
trying to move PNG's [with transparencies] over a BG image. The blend mode
on all layers is set to 'normal'. No alpha is being used except for the
inherent PNG's alphaness. I've also tried setting the bitmapCaching at
runtime to the holding MC, but none of this is helping...
Any other suggestions? Am I still missing something? Is the PNG the
problem?
Thanks,
Sebastian.
Zeh Fernando wrote:
I have tried basic timeline motion tween, and also the AS3 Tweener
class; but in both cases I get the issue that the slow animation makes
the
image do little 1 pixel jumps that are VERY visible and break the effect
I
am going for [which needs to be extremely subtle].
If that's an image, set its anti-alias to antialias for animation. If
it's a bitmap, turn on smoothing on it (on the library). If it's a loaded
bitmap, turn on the Bitmap's antialias.
Zeh
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RE: [Flashcoders] smooth animations? AS3
Loose the tween.
Use the Timer class and update your x or whatever at a amount of
milliseconds.
Framerate is never reliable
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of sebastian
Sent: donderdag 4 september 2008 5:04
To: Flash Coders List
Subject: Re: [Flashcoders] smooth animations? AS3
ok I don't normally ask this, but I have made a very simple test flash
file with just one vector graphic and with Tweener I am moving it across
the screen; it doesn't move smoothly.
The code you will find in my flash file is just this:
package {
import flash.display.MovieClip;
import caurina.transitions.Tweener;
//main timeline AS file:
public class testas extends MovieClip {
public function testas () {
setAnimation2 ();
}
private function setAnimation2 () {
Tweener.addTween (testMC, {x:-1800, time:8000,
transition:linear});
}
}
}
the file with my FLA, which like I said has only one vector-item of a
square on the timeline is:
http://www.fountain-city.com/archives/test/testMotion.zip
Can anyone help me fix this?
Much appreciated!
thanks!
seb.
sebastian wrote:
also I tried replacing my PNG with a simple vector of a square, but it
STILL skips as it moves every pixel... surely I am still missing
something simple here...
hmmm
sebastian wrote:
Thanks Jack and Zeh,
I have the bitmap smoothing on on the image's properties in the
library, and I also turned on for every MC it is placed in 'use
runtime bitmap caching' but i STILL get staggered movement...
:(((
It's nothing complicated, aside from using the Tweener AS3 class, I'm
trying to move PNG's [with transparencies] over a BG image. The blend
mode on all layers is set to 'normal'. No alpha is being used except
for the inherent PNG's alphaness. I've also tried setting the
bitmapCaching at runtime to the holding MC, but none of this is
helping...
Any other suggestions? Am I still missing something? Is the PNG the
problem?
Thanks,
Sebastian.
Zeh Fernando wrote:
I have tried basic timeline motion tween, and also the AS3 Tweener
class; but in both cases I get the issue that the slow animation
makes the image do little 1 pixel jumps that are VERY visible and
break the effect I am going for [which needs to be extremely subtle].
If that's an image, set its anti-alias to antialias for animation. If
it's a bitmap, turn on smoothing on it (on the library). If it's a
loaded bitmap, turn on the Bitmap's antialias.
Zeh
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Re: [Flashcoders] smooth animations? AS3
Modern tween engines (including the one used on his example) by default
do not use the framerate as the base for calculation but rather the time
spent since the animation has started (even if they only update on frame
events). Replacing it with a timer class will produce the same result.
His problem is with asset and not with calculation of the new position
or with time accuracy.
Zeh
Cor wrote:
Loose the tween.
Use the Timer class and update your x or whatever at a amount of
milliseconds.
Framerate is never reliable
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of sebastian
Sent: donderdag 4 september 2008 5:04
To: Flash Coders List
Subject: Re: [Flashcoders] smooth animations? AS3
ok I don't normally ask this, but I have made a very simple test flash
file with just one vector graphic and with Tweener I am moving it across
the screen; it doesn't move smoothly.
The code you will find in my flash file is just this:
package {
import flash.display.MovieClip;
import caurina.transitions.Tweener;
//main timeline AS file:
public class testas extends MovieClip {
public function testas () {
setAnimation2 ();
}
private function setAnimation2 () {
Tweener.addTween (testMC, {x:-1800, time:8000,
transition:linear});
}
}
}
the file with my FLA, which like I said has only one vector-item of a
square on the timeline is:
http://www.fountain-city.com/archives/test/testMotion.zip
Can anyone help me fix this?
Much appreciated!
thanks!
seb.
sebastian wrote:
also I tried replacing my PNG with a simple vector of a square, but it
STILL skips as it moves every pixel... surely I am still missing
something simple here...
hmmm
sebastian wrote:
Thanks Jack and Zeh,
I have the bitmap smoothing on on the image's properties in the
library, and I also turned on for every MC it is placed in 'use
runtime bitmap caching' but i STILL get staggered movement...
:(((
It's nothing complicated, aside from using the Tweener AS3 class, I'm
trying to move PNG's [with transparencies] over a BG image. The blend
mode on all layers is set to 'normal'. No alpha is being used except
for the inherent PNG's alphaness. I've also tried setting the
bitmapCaching at runtime to the holding MC, but none of this is
helping...
Any other suggestions? Am I still missing something? Is the PNG the
problem?
Thanks,
Sebastian.
Zeh Fernando wrote:
I have tried basic timeline motion tween, and also the AS3 Tweener
class; but in both cases I get the issue that the slow animation
makes the image do little 1 pixel jumps that are VERY visible and
break the effect I am going for [which needs to be extremely subtle].
If that's an image, set its anti-alias to antialias for animation. If
it's a bitmap, turn on smoothing on it (on the library). If it's a
loaded bitmap, turn on the Bitmap's antialias.
Zeh
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Re: [Flashcoders] smooth animations? AS3
Thank you everyone for all of your great help, I think I know now enough
to be able to resolve the issue. Complexities arise in my MC because I
need bitmapcaching on to get correct alpha's to work, so I'm thinking up
solutions and workarounds...
:P
All the best,
Sebastian.
Zeh Fernando wrote:
Modern tween engines (including the one used on his example) by default
do not use the framerate as the base for calculation but rather the time
spent since the animation has started (even if they only update on frame
events). Replacing it with a timer class will produce the same result.
His problem is with asset and not with calculation of the new position
or with time accuracy.
Zeh
Cor wrote:
Loose the tween.
Use the Timer class and update your x or whatever at a amount of
milliseconds.
Framerate is never reliable
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of sebastian
Sent: donderdag 4 september 2008 5:04
To: Flash Coders List
Subject: Re: [Flashcoders] smooth animations? AS3
ok I don't normally ask this, but I have made a very simple test flash
file with just one vector graphic and with Tweener I am moving it
across the screen; it doesn't move smoothly.
The code you will find in my flash file is just this:
package {
import flash.display.MovieClip;
import caurina.transitions.Tweener;
//main timeline AS file:
public class testas extends MovieClip {
public function testas () {
setAnimation2 ();
}
private function setAnimation2 () {
Tweener.addTween (testMC, {x:-1800, time:8000,
transition:linear});
}
}
}
the file with my FLA, which like I said has only one vector-item of a
square on the timeline is:
http://www.fountain-city.com/archives/test/testMotion.zip
Can anyone help me fix this?
Much appreciated!
thanks!
seb.
sebastian wrote:
also I tried replacing my PNG with a simple vector of a square, but
it STILL skips as it moves every pixel... surely I am still missing
something simple here...
hmmm
sebastian wrote:
Thanks Jack and Zeh,
I have the bitmap smoothing on on the image's properties in the
library, and I also turned on for every MC it is placed in 'use
runtime bitmap caching' but i STILL get staggered movement...
:(((
It's nothing complicated, aside from using the Tweener AS3 class,
I'm trying to move PNG's [with transparencies] over a BG image. The
blend mode on all layers is set to 'normal'. No alpha is being used
except for the inherent PNG's alphaness. I've also tried setting the
bitmapCaching at runtime to the holding MC, but none of this is
helping...
Any other suggestions? Am I still missing something? Is the PNG the
problem?
Thanks,
Sebastian.
Zeh Fernando wrote:
I have tried basic timeline motion tween, and also the AS3 Tweener
class; but in both cases I get the issue that the slow animation
makes the image do little 1 pixel jumps that are VERY visible and
break the effect I am going for [which needs to be extremely subtle].
If that's an image, set its anti-alias to antialias for animation.
If it's a bitmap, turn on smoothing on it (on the library). If it's
a loaded bitmap, turn on the Bitmap's antialias.
Zeh
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RE: [Flashcoders] smooth animations? AS3
If you want sub-pixel movement, you must turn smoothing on for the asset, but there are a few gotchas that I'm aware of: 1) If DisplayObject/MovieClip has any filters applied to it (blur, drop shadow, etc.), I'm pretty sure it's impossible to get sub-pixel movement. It will only move on whole pixels which would explain that undesirable effect you described. 2) If you're animating a TextField with anti-aliasing set to anti-alias for readability, you'll probably get some visual vibration as it moves. Obviously bitmap text (no anti-aliasing) won't work well for sub-pixel movement. 3) In certain scenarios, Flash will not allow smoothing on subloaded assets from other domains unless you have a crossdomain.xml file in place. It's a security thing. If your asset is a raster image in your library, you can simply right-click on it, choose properties, and select the allow smoothing checkbox. If it's a BitmapData object, you'll need to enable smoothing when you create it through code. If it's not a raster image, could try creating a BitmapData of your asset, set smoothing to true, and animate that in order to get the sub-pixel movement. Not sure it would give you great results, but it's worth a shot. Hope that helps. Jack -Original Message- From: sebastian [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 03, 2008 7:50 PM To: Flash Coders List Subject: [Flashcoders] smooth animations? AS3 Hi everyone, so I have a MC I want to move very-very slowly across the screen; so that it is subtle. I have the frame rate set to 30fps and any increase to the FPS doesn't seem to make much of a difference. I have tried basic timeline motion tween, and also the AS3 Tweener class; but in both cases I get the issue that the slow animation makes the image do little 1 pixel jumps that are VERY visible and break the effect I am going for [which needs to be extremely subtle]. Am I just stuffed? Or is there a way to achieve very smooth animations in Flash/AS3? [short of laying it all out as frames and cross fading! which would be ridiculous and over-size the file so not possible]. Maybe I just need to turn on something somewhere? I can't remember where if that's the case... Thanks!! Sebastian. ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] smooth animations? AS3
I have tried basic timeline motion tween, and also the AS3 Tweener class; but in both cases I get the issue that the slow animation makes the image do little 1 pixel jumps that are VERY visible and break the effect I am going for [which needs to be extremely subtle]. If that's an image, set its anti-alias to antialias for animation. If it's a bitmap, turn on smoothing on it (on the library). If it's a loaded bitmap, turn on the Bitmap's antialias. Zeh ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] smooth animations? AS3
Thanks Jack and Zeh, I have the bitmap smoothing on on the image's properties in the library, and I also turned on for every MC it is placed in 'use runtime bitmap caching' but i STILL get staggered movement... :((( It's nothing complicated, aside from using the Tweener AS3 class, I'm trying to move PNG's [with transparencies] over a BG image. The blend mode on all layers is set to 'normal'. No alpha is being used except for the inherent PNG's alphaness. I've also tried setting the bitmapCaching at runtime to the holding MC, but none of this is helping... Any other suggestions? Am I still missing something? Is the PNG the problem? Thanks, Sebastian. Zeh Fernando wrote: I have tried basic timeline motion tween, and also the AS3 Tweener class; but in both cases I get the issue that the slow animation makes the image do little 1 pixel jumps that are VERY visible and break the effect I am going for [which needs to be extremely subtle]. If that's an image, set its anti-alias to antialias for animation. If it's a bitmap, turn on smoothing on it (on the library). If it's a loaded bitmap, turn on the Bitmap's antialias. Zeh ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] smooth animations? AS3
also I tried replacing my PNG with a simple vector of a square, but it STILL skips as it moves every pixel... surely I am still missing something simple here... hmmm sebastian wrote: Thanks Jack and Zeh, I have the bitmap smoothing on on the image's properties in the library, and I also turned on for every MC it is placed in 'use runtime bitmap caching' but i STILL get staggered movement... :((( It's nothing complicated, aside from using the Tweener AS3 class, I'm trying to move PNG's [with transparencies] over a BG image. The blend mode on all layers is set to 'normal'. No alpha is being used except for the inherent PNG's alphaness. I've also tried setting the bitmapCaching at runtime to the holding MC, but none of this is helping... Any other suggestions? Am I still missing something? Is the PNG the problem? Thanks, Sebastian. Zeh Fernando wrote: I have tried basic timeline motion tween, and also the AS3 Tweener class; but in both cases I get the issue that the slow animation makes the image do little 1 pixel jumps that are VERY visible and break the effect I am going for [which needs to be extremely subtle]. If that's an image, set its anti-alias to antialias for animation. If it's a bitmap, turn on smoothing on it (on the library). If it's a loaded bitmap, turn on the Bitmap's antialias. Zeh ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] smooth animations? AS3
ok I don't normally ask this, but I have made a very simple test flash
file with just one vector graphic and with Tweener I am moving it across
the screen; it doesn't move smoothly.
The code you will find in my flash file is just this:
package {
import flash.display.MovieClip;
import caurina.transitions.Tweener;
//main timeline AS file:
public class testas extends MovieClip {
public function testas () {
setAnimation2 ();
}
private function setAnimation2 () {
Tweener.addTween (testMC, {x:-1800, time:8000,
transition:linear});
}
}
}
the file with my FLA, which like I said has only one vector-item of a
square on the timeline is:
http://www.fountain-city.com/archives/test/testMotion.zip
Can anyone help me fix this?
Much appreciated!
thanks!
seb.
sebastian wrote:
also I tried replacing my PNG with a simple vector of a square, but it
STILL skips as it moves every pixel... surely I am still missing
something simple here...
hmmm
sebastian wrote:
Thanks Jack and Zeh,
I have the bitmap smoothing on on the image's properties in the
library, and I also turned on for every MC it is placed in 'use
runtime bitmap caching' but i STILL get staggered movement...
:(((
It's nothing complicated, aside from using the Tweener AS3 class, I'm
trying to move PNG's [with transparencies] over a BG image. The blend
mode on all layers is set to 'normal'. No alpha is being used except
for the inherent PNG's alphaness. I've also tried setting the
bitmapCaching at runtime to the holding MC, but none of this is
helping...
Any other suggestions? Am I still missing something? Is the PNG the
problem?
Thanks,
Sebastian.
Zeh Fernando wrote:
I have tried basic timeline motion tween, and also the AS3 Tweener
class; but in both cases I get the issue that the slow animation
makes the image do little 1 pixel jumps that are VERY visible and
break the effect I am going for [which needs to be extremely subtle].
If that's an image, set its anti-alias to antialias for animation. If
it's a bitmap, turn on smoothing on it (on the library). If it's a
loaded bitmap, turn on the Bitmap's antialias.
Zeh
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Re: [Flashcoders] smooth animations? AS3
Square vectors might still look like they're snapping if they have an outline. Do you have a published example of that, as an SWF, so we can see and measure what kind of movement problem is it having? Zeh sebastian wrote: also I tried replacing my PNG with a simple vector of a square, but it STILL skips as it moves every pixel... surely I am still missing something simple here... hmmm sebastian wrote: Thanks Jack and Zeh, I have the bitmap smoothing on on the image's properties in the library, and I also turned on for every MC it is placed in 'use runtime bitmap caching' but i STILL get staggered movement... :((( It's nothing complicated, aside from using the Tweener AS3 class, I'm trying to move PNG's [with transparencies] over a BG image. The blend mode on all layers is set to 'normal'. No alpha is being used except for the inherent PNG's alphaness. I've also tried setting the bitmapCaching at runtime to the holding MC, but none of this is helping... Any other suggestions? Am I still missing something? Is the PNG the problem? Thanks, Sebastian. Zeh Fernando wrote: I have tried basic timeline motion tween, and also the AS3 Tweener class; but in both cases I get the issue that the slow animation makes the image do little 1 pixel jumps that are VERY visible and break the effect I am going for [which needs to be extremely subtle]. If that's an image, set its anti-alias to antialias for animation. If it's a bitmap, turn on smoothing on it (on the library). If it's a loaded bitmap, turn on the Bitmap's antialias. Zeh ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] smooth animations? AS3
There are two things wrong with that example:
One, the square image you have has an outline. Because of the way Flash
renders outlines, it'll always snap perfectly vertical and horizontal
lines to the pixel, hence producing what looks like a hard bitmap move.
In fact, if you cut a diagonal line on the square and try to move it,
you'll notice only the vertical and horizontal sides will snap, which
is pretty odd (but expected behavior). Turning on stroke hinting
actually forces this same behavior for all lines.
And two, you turned on bitmap caching (use runtime bitmap caching) for
the object, which forces it to render as a bitmap on round pixels and
then transfer to the screen. Your object acts like a bitmap with
smoothing/antialias off.
So if you turn bitmap caching off and remove the outline and it'll work.
Check it out:
http://hosted.zeh.com.br/misc/test.swf
These techniques are only good for this example scenario though, which
probably isn't the problem that you're facing on your actual work
(specially if you're using images or text), so you'll have to test to
see what's up with your specific case.
But what I can tell you is, don't use runtime bitmap caching as default.
Not only because it'll force your renders to be based on the pixel most
of the times, but because it'll mess with your movies in a number of
different ways like forcing a large use of memory and garbage collection
when not needed. Don't get me wrong, it's a great feature to have, but
it has to be used sparingly and there's a reason why it's off by default.
Zeh
sebastian wrote:
ok I don't normally ask this, but I have made a very simple test flash
file with just one vector graphic and with Tweener I am moving it across
the screen; it doesn't move smoothly.
The code you will find in my flash file is just this:
package {
import flash.display.MovieClip;
import caurina.transitions.Tweener;
//main timeline AS file:
public class testas extends MovieClip {
public function testas () {
setAnimation2 ();
}
private function setAnimation2 () {
Tweener.addTween (testMC, {x:-1800, time:8000,
transition:linear});
}
}
}
the file with my FLA, which like I said has only one vector-item of a
square on the timeline is:
http://www.fountain-city.com/archives/test/testMotion.zip
Can anyone help me fix this?
Much appreciated!
thanks!
seb.
sebastian wrote:
also I tried replacing my PNG with a simple vector of a square, but it
STILL skips as it moves every pixel... surely I am still missing
something simple here...
hmmm
sebastian wrote:
Thanks Jack and Zeh,
I have the bitmap smoothing on on the image's properties in the
library, and I also turned on for every MC it is placed in 'use
runtime bitmap caching' but i STILL get staggered movement...
:(((
It's nothing complicated, aside from using the Tweener AS3 class, I'm
trying to move PNG's [with transparencies] over a BG image. The blend
mode on all layers is set to 'normal'. No alpha is being used except
for the inherent PNG's alphaness. I've also tried setting the
bitmapCaching at runtime to the holding MC, but none of this is
helping...
Any other suggestions? Am I still missing something? Is the PNG the
problem?
Thanks,
Sebastian.
Zeh Fernando wrote:
I have tried basic timeline motion tween, and also the AS3 Tweener
class; but in both cases I get the issue that the slow animation
makes the image do little 1 pixel jumps that are VERY visible and
break the effect I am going for [which needs to be extremely subtle].
If that's an image, set its anti-alias to antialias for animation.
If it's a bitmap, turn on smoothing on it (on the library). If it's
a loaded bitmap, turn on the Bitmap's antialias.
Zeh
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