Re: [Flashcoders] Antialiasing BitmapData in AS2?
> Yeah, I knew about the smoothing option, but even with smoothing on > you'll find a very noticeable and unsightly ripping of the image when > undergoing animation. Anything more accurate and rendering an image to > NOT cause this effect? Perhaps some papervision3D? The way you're describing it, it seems more of a monitor refresh rate issue (which can be more apparent if you use a very high frame rate on your movie) than anything related to flash rendering techniques themselves. I suggest you try testing your movie on other computers (other screens) and see if you notice the same effect. If it doesn't, it's probably something on your monitor. Plus, if that's the case, I don't believe any extension, class, or whatnot would solve the issue. Rendering is rendering, other than aliasing/smoothing there's no different way to push animation on flash. However, animation ripping is to be expected when the renderer is not synchronized to the vertical refresh rate. I'm not sure how the flash player works on that regard though - it might even be a graphic driver issue. Zeh ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Antialiasing BitmapData in AS2?
Yeah, I knew about the smoothing option, but even with smoothing on
you'll find a very noticeable and unsightly ripping of the image when
undergoing animation. Anything more accurate and rendering an image
to NOT cause this effect? Perhaps some papervision3D?
-lm
On Feb 5, 2007, at 8:03 AM, Thimon Sistermans wrote:
The answer is in the help files:
use the BitmapData of you image and set the smoothing argument 'true'
import flash.display.*;
import flash.geom.*;
var bmpd:BitmapData = new BitmapData(20,20);
var rect1:Rectangle = new Rectangle(0,0,10,10);
var rect2:Rectangle = new Rectangle(0, 10, 10, 20);
var rect3:Rectangle = new Rectangle(10, 0, 20, 10);
var rect4:Rectangle = new Rectangle(10, 10, 20, 20);
bmpd.fillRect(rect1, 0xAAFF);
bmpd.fillRect(rect2, 0xAA00FF00);
bmpd.fillRect(rect3, 0xAAFF);
bmpd.fillRect(rect4, 0xAA99);
this.createEmptyMovieClip("bmp_fill_mc", this.getNextHighestDepth());
with (bmp_fill_mc) {
matrix = new Matrix();
matrix.rotate(Math.PI/8);
repeat = true;
smoothing = true;
beginBitmapFill(bmpd, matrix, repeat, smoothing);
moveTo(0, 0);
lineTo(0, 60);
lineTo(60, 60);
lineTo(60, 0);
lineTo(0, 0);
endFill();
}
bmp_fill_mc._xscale = 200;
bmp_fill_mc._yscale = 200;
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
lincoln
Sent: Monday, February 05, 2007 16:34
To: Flashcoders mailing list
Subject: Re: [Flashcoders] Antialiasing BitmapData in AS2?
I am also having a similar unsightly antialiasing or "ripping" issue
that I was hoping for a solution. I have a jpg in flash that i'm
skewing and distorting while animating. The combination of these
effects is causing a very noticeable ripping artifact in the image
where
it looks as if the image is literally breaking apart and not being
able
to catch up to the animation.
Does anyone know or have a proper sample of a technique to avoid this?
Smoothing on, of course...anything else?
-lm
On Feb 5, 2007, at 3:27 AM, Zeh Fernando wrote:
I guess an algorithm could be conceived that would somehow infer
sub-pixel values, but this feels like it would be unnecessary faff,
and very slow.
Anyone know of a quick-and-dirty way of smoothing a bitmap? I
guess I
could render at a higher resolution than needed and scale down, to
mimic calculating sub-pixels, but that also feels inefficient. There
must be a clever cheaty way of doing this?
From what I know, rendering at a higher size then scaling is the only
correct way; it's more or less what 3d cards do when rendering
antialias on games.
All "antialiasing" techniques that take an image into account and try
to create antialias out of thin air will just be different blurring
techniques and will fail under certain specific situations. If you
only have 'rounded' linear art as the example you linked to this
might
be feasible as you won't have to worry abour corners, so blurring + a
few different threshold levels will create some nice antialias for
you... but I personally think rendering at a higher size then scaling
would be faster.
Zeh
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RE: [Flashcoders] Antialiasing BitmapData in AS2?
The answer is in the help files:
use the BitmapData of you image and set the smoothing argument 'true'
import flash.display.*;
import flash.geom.*;
var bmpd:BitmapData = new BitmapData(20,20);
var rect1:Rectangle = new Rectangle(0,0,10,10);
var rect2:Rectangle = new Rectangle(0, 10, 10, 20);
var rect3:Rectangle = new Rectangle(10, 0, 20, 10);
var rect4:Rectangle = new Rectangle(10, 10, 20, 20);
bmpd.fillRect(rect1, 0xAAFF);
bmpd.fillRect(rect2, 0xAA00FF00);
bmpd.fillRect(rect3, 0xAAFF);
bmpd.fillRect(rect4, 0xAA99);
this.createEmptyMovieClip("bmp_fill_mc", this.getNextHighestDepth());
with (bmp_fill_mc) {
matrix = new Matrix();
matrix.rotate(Math.PI/8);
repeat = true;
smoothing = true;
beginBitmapFill(bmpd, matrix, repeat, smoothing);
moveTo(0, 0);
lineTo(0, 60);
lineTo(60, 60);
lineTo(60, 0);
lineTo(0, 0);
endFill();
}
bmp_fill_mc._xscale = 200;
bmp_fill_mc._yscale = 200;
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of lincoln
Sent: Monday, February 05, 2007 16:34
To: Flashcoders mailing list
Subject: Re: [Flashcoders] Antialiasing BitmapData in AS2?
I am also having a similar unsightly antialiasing or "ripping" issue
that I was hoping for a solution. I have a jpg in flash that i'm
skewing and distorting while animating. The combination of these
effects is causing a very noticeable ripping artifact in the image where
it looks as if the image is literally breaking apart and not being able
to catch up to the animation.
Does anyone know or have a proper sample of a technique to avoid this?
Smoothing on, of course...anything else?
-lm
On Feb 5, 2007, at 3:27 AM, Zeh Fernando wrote:
>> I guess an algorithm could be conceived that would somehow infer
>> sub-pixel values, but this feels like it would be unnecessary faff,
>> and very slow.
>> Anyone know of a quick-and-dirty way of smoothing a bitmap? I guess I
>> could render at a higher resolution than needed and scale down, to
>> mimic calculating sub-pixels, but that also feels inefficient. There
>> must be a clever cheaty way of doing this?
>
> From what I know, rendering at a higher size then scaling is the only
> correct way; it's more or less what 3d cards do when rendering
> antialias on games.
>
> All "antialiasing" techniques that take an image into account and try
> to create antialias out of thin air will just be different blurring
> techniques and will fail under certain specific situations. If you
> only have 'rounded' linear art as the example you linked to this might
> be feasible as you won't have to worry abour corners, so blurring + a
> few different threshold levels will create some nice antialias for
> you... but I personally think rendering at a higher size then scaling
> would be faster.
>
>
> Zeh
> ___
> Flashcoders@chattyfig.figleaf.com
> To change your subscription options or search the archive:
> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>
> 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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Re: [Flashcoders] Antialiasing BitmapData in AS2?
I am also having a similar unsightly antialiasing or "ripping" issue that I was hoping for a solution. I have a jpg in flash that i'm skewing and distorting while animating. The combination of these effects is causing a very noticeable ripping artifact in the image where it looks as if the image is literally breaking apart and not being able to catch up to the animation. Does anyone know or have a proper sample of a technique to avoid this? Smoothing on, of course...anything else? -lm On Feb 5, 2007, at 3:27 AM, Zeh Fernando wrote: I guess an algorithm could be conceived that would somehow infer sub-pixel values, but this feels like it would be unnecessary faff, and very slow. Anyone know of a quick-and-dirty way of smoothing a bitmap? I guess I could render at a higher resolution than needed and scale down, to mimic calculating sub-pixels, but that also feels inefficient. There must be a clever cheaty way of doing this? From what I know, rendering at a higher size then scaling is the only correct way; it's more or less what 3d cards do when rendering antialias on games. All "antialiasing" techniques that take an image into account and try to create antialias out of thin air will just be different blurring techniques and will fail under certain specific situations. If you only have 'rounded' linear art as the example you linked to this might be feasible as you won't have to worry abour corners, so blurring + a few different threshold levels will create some nice antialias for you... but I personally think rendering at a higher size then scaling would be faster. Zeh ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Antialiasing BitmapData in AS2?
I guess an algorithm could be conceived that would somehow infer sub-pixel values, but this feels like it would be unnecessary faff, and very slow. Anyone know of a quick-and-dirty way of smoothing a bitmap? I guess I could render at a higher resolution than needed and scale down, to mimic calculating sub-pixels, but that also feels inefficient. There must be a clever cheaty way of doing this? From what I know, rendering at a higher size then scaling is the only correct way; it's more or less what 3d cards do when rendering antialias on games. All "antialiasing" techniques that take an image into account and try to create antialias out of thin air will just be different blurring techniques and will fail under certain specific situations. If you only have 'rounded' linear art as the example you linked to this might be feasible as you won't have to worry abour corners, so blurring + a few different threshold levels will create some nice antialias for you... but I personally think rendering at a higher size then scaling would be faster. Zeh ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Antialiasing BitmapData in AS2?
Thanks for the heads-up, Alias (and good to hear from you again ;) ) The original attachment's up at http://www.prehensile.co.uk/dropbox/Untitled-1.gif. I'm using the old blur-lots-then-threshold technique. I've done a bit more research, and the way I understand it, most antialiasing techniques work by calculating the sub-pixel positions of things, and setting the brightness of the closest corresponding pixels accordingly. In this case, however, I already have an aliased bitmap with no sub-pixel information. I guess an algorithm could be conceived that would somehow infer sub-pixel values, but this feels like it would be unnecessary faff, and very slow. Anyone know of a quick-and-dirty way of smoothing a bitmap? I guess I could render at a higher resolution than needed and scale down, to mimic calculating sub-pixels, but that also feels inefficient. There must be a clever cheaty way of doing this? h. On 04/02/07, Alias™ <[EMAIL PROTECTED]> wrote: Can you throw the example image onto a web server so we can see it? The list strips out attachments :( Alias On 01/02/07, Henry Cooke <[EMAIL PROTECTED]> wrote: > Hey all, > > I've been mucking about with a metablob-type thing, and have got it > rendering quite nicely. However, it only renders a black-or-white (1bit) > bitmap - does anyone know of a good technique to do fast antialiasing on > such a bitmap? I've tried blurring a bit (which is slow as hell, and looks > crap) and rendering at 1/2 res and scaling up with a draw() with smoothing > on, which also looks crap. Any better suggestions? > > Example image attached. > > h. > > > ___ > Flashcoders@chattyfig.figleaf.com > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com > > ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Antialiasing BitmapData in AS2?
Can you throw the example image onto a web server so we can see it? The list strips out attachments :( Alias On 01/02/07, Henry Cooke <[EMAIL PROTECTED]> wrote: Hey all, I've been mucking about with a metablob-type thing, and have got it rendering quite nicely. However, it only renders a black-or-white (1bit) bitmap - does anyone know of a good technique to do fast antialiasing on such a bitmap? I've tried blurring a bit (which is slow as hell, and looks crap) and rendering at 1/2 res and scaling up with a draw() with smoothing on, which also looks crap. Any better suggestions? Example image attached. h. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] Antialiasing BitmapData in AS2?
Hey all, I've been mucking about with a metablob-type thing, and have got it rendering quite nicely. However, it only renders a black-or-white (1bit) bitmap - does anyone know of a good technique to do fast antialiasing on such a bitmap? I've tried blurring a bit (which is slow as hell, and looks crap) and rendering at 1/2 res and scaling up with a draw() with smoothing on, which also looks crap. Any better suggestions? Example image attached. h. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
