[Papervision3D] Papervision3D Digest, Vol 32, Issue 11
Gwilym Johnston
me at gwilym.com
Wed May 6 09:08:33 PDT 2009
Hi all,
Quick question:
is there an equivalent of Point.distance(pointA, pointB) in Papervision?
Thanks
On 6 May 2009, at 10:30, Papervision3D-request at osflash.org wrote:
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> Today's Topics:
>
> 1. DAE Memory Leak (Ryan Kee)
> 2. Detect Mouse Events in a viewport (Sandeep Menon)
> 3. Re: Detect Mouse Events in a viewport (Steve D)
> 4. Re: Detect Mouse Events in a viewport (Sandeep Menon)
> 5. Re: Detect Mouse Events in a viewport (Steve D)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 5 May 2009 15:25:39 -0500
> From: Ryan Kee <me at ryankee.com>
> Subject: [Papervision3D] DAE Memory Leak
> To: papervision3d at osflash.org
> Message-ID: <A5C971FF-87AE-4960-824A-4588DA568B13 at ryankee.com>
> Content-Type: text/plain; charset="us-ascii"; Format="flowed";
> DelSp="yes"
>
> Hey everyone. I'm having an issue with a memory leak when dealing with
> DAEs. At first I thought it was the same problem that older builds of
> PV3D had with dictionary objects not using weak references (Seb fixed
> those a few months ago:http://www.sebleedelisle.com/?p=309), but after
> running side by side tests of adding and deleting primitives and DAEs,
> the memory creep was only present with DAE files.
>
> For my current application I have the need to load and unload several
> DAE models and apply the same texture to all of them. In theory,
> something like this should work:
> Code:
>
> import org.papervision3d.materials.ColorMaterial;
> import org.papervision3d.materials.utils.MaterialsList;
> import org.papervision3d.objects.parsers.DAE;
> import org.papervision3d.view.Viewport3D;
> import org.papervision3d.render.BasicRenderEngine;
> import org.papervision3d.cameras.Camera3D;
> import org.papervision3d.scenes.Scene3D;
> import org.papervision3d.events.FileLoadEvent;
> import org.papervision3d.view.stats.StatsView;
>
> public var SCENE:Scene3D = new Scene3D();
> public var CAMERA:Camera3D = new Camera3D();
> public var RENDERER:BasicRenderEngine = new BasicRenderEngine();
> public var VIEWPORT:Viewport3D = new Viewport3D(640,480);
> public var COLLADA:DAE;
> public var MATERIALS:MaterialsList = new MaterialsList();
> public var COLOR_MAT:ColorMaterial = new ColorMaterial();
>
> public function init():void
> {
> //add the viewport to the stage
> stage.addChild(VIEWPORT);
> //set up material list
> MATERIALS.addMaterial(COLOR_MAT, 'TextureName');
> //create collada
> loadCollada();
> //set up mouse event to unload the current dae and load another
> stage.addEventListener(MouseEvent.CLICK, unloadCollada);
> }
>
> public function loadCollada():void
> {
> COLLADA = new DAE();
> COLLADA.load('dae/yourFileName.dae', MATERIALS);
> COLLADA.addEventListener(FileLoadEvent.LOAD_COMPLETE, daeLoaded);
> COLLADA.scale = 3500;
> }
>
> public function unloadCollada(e:MouseEvent):void
> {
> //remove the collada from the scene and set everything to null
> SCENE.removeChild(COLLADA);
> COLLADA.geometry = null;
> COLLADA.materials = null;
> COLLADA.document = null;
> COLLADA = null;
> //load the collada again
> loadCollada();
> }
>
> public function daeLoaded(e:FileLoadEvent):void
> {
> //remove event listener
> COLLADA.removeEventListener(FileLoadEvent.LOAD_COMPLETE, daeLoaded);
> //add collada to the scene
> SCENE.addChild(COLLADA);
> //set up and start render timer
> var TIMER:Timer = new Timer(20);
> TIMER.addEventListener(TimerEvent.TIMER, renderScene);
> TIMER.start();
> }
>
> public function renderScene(e:TimerEvent):void
> {
> RENDERER.renderScene(SCENE, CAMERA, VIEWPORT);
> }
>
>
> If you were to compile this, you'd see that the memory keeps building
> every time you click the stage. If I replaced the DAE with a Cube,
> there isn't any memory leak. Any ideas?
>
> Ryan
>
>
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> ------------------------------
>
> Message: 2
> Date: Wed, 6 May 2009 13:42:15 +0530
> From: Sandeep Menon <sandeepmenon24 at gmail.com>
> Subject: [Papervision3D] Detect Mouse Events in a viewport
> To: papervision3d at osflash.org
> Message-ID:
> <6895a11c0905060112w4ccb1ad8ib472bfcb16ece8d6 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi,
>
> I've got the following setup in a papervision application I'm
> working on.
>
> - A Viewport3D object, that's added as a child of a
> - UIComponent, that in turn is added as a child to a
> - A custom object, that's derived from a Canvas class
>
> What i want to do is detect any mouse events that happen within the
> viewport, not just those that occur over any scene objects.
>
>
> How would I go about handling this, by adding the listener to the
> viewport
> itself or even the UIcomponent object, rather than dealing with it
> at the
> Canvas-derived object?
>
> Thanks,
> sm
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>
> ------------------------------
>
> Message: 3
> Date: Wed, 6 May 2009 01:48:08 -0700
> From: Steve D <kruass at gmail.com>
> Subject: Re: [Papervision3D] Detect Mouse Events in a viewport
> To: papervision3d at osflash.org
> Message-ID:
> <f66fee040905060148q17a8235amcd0fba5e8e90a835 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> If the UIComponent or Canvas have solid backgrounds, and they will
> detect a
> hittest. You can put your event listener on them. If they are
> transparent
> (as the viewport is), then you'll need the listener on the scene,
> and do
> bounds checking in the event handler method.
>
>
>
> On Wed, May 6, 2009 at 1:12 AM, Sandeep Menon <sandeepmenon24 at gmail.com
> >wrote:
>
>> Hi,
>>
>> I've got the following setup in a papervision application I'm
>> working on.
>>
>> - A Viewport3D object, that's added as a child of a
>> - UIComponent, that in turn is added as a child to a
>> - A custom object, that's derived from a Canvas class
>>
>> What i want to do is detect any mouse events that happen within the
>> viewport, not just those that occur over any scene objects.
>>
>>
>> How would I go about handling this, by adding the listener to the
>> viewport
>> itself or even the UIcomponent object, rather than dealing with it
>> at the
>> Canvas-derived object?
>>
>> Thanks,
>> sm
>>
>>
>> _______________________________________________
>> Papervision3D mailing list
>> Papervision3D at osflash.org
>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>
>>
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>
> ------------------------------
>
> Message: 4
> Date: Wed, 6 May 2009 14:48:24 +0530
> From: Sandeep Menon <sandeepmenon24 at gmail.com>
> Subject: Re: [Papervision3D] Detect Mouse Events in a viewport
> To: papervision3d at osflash.org
> Message-ID:
> <6895a11c0905060218r1bc3179cxa2f0746f7406494d at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> so, if i have a viewport that's embedded in a UIComponent of the
> same size,
> being transparent, I'll need to add the listener to the scene object
> instead?
>
> On Wed, May 6, 2009 at 2:18 PM, Steve D <kruass at gmail.com> wrote:
>
>> If the UIComponent or Canvas have solid backgrounds, and they will
>> detect a
>> hittest. You can put your event listener on them. If they are
>> transparent
>> (as the viewport is), then you'll need the listener on the scene,
>> and do
>> bounds checking in the event handler method.
>>
>>
>>
>> On Wed, May 6, 2009 at 1:12 AM, Sandeep Menon <sandeepmenon24 at gmail.com
>> >wrote:
>>
>>> Hi,
>>>
>>> I've got the following setup in a papervision application I'm
>>> working on.
>>>
>>> - A Viewport3D object, that's added as a child of a
>>> - UIComponent, that in turn is added as a child to a
>>> - A custom object, that's derived from a Canvas class
>>>
>>> What i want to do is detect any mouse events that happen within the
>>> viewport, not just those that occur over any scene objects.
>>>
>>>
>>> How would I go about handling this, by adding the listener to the
>>> viewport
>>> itself or even the UIcomponent object, rather than dealing with it
>>> at the
>>> Canvas-derived object?
>>>
>>> Thanks,
>>> sm
>>>
>>>
>>> _______________________________________________
>>> Papervision3D mailing list
>>> Papervision3D at osflash.org
>>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>>
>>>
>>
>> _______________________________________________
>> Papervision3D mailing list
>> Papervision3D at osflash.org
>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>
>>
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> ------------------------------
>
> Message: 5
> Date: Wed, 6 May 2009 02:30:42 -0700
> From: Steve D <kruass at gmail.com>
> Subject: Re: [Papervision3D] Detect Mouse Events in a viewport
> To: papervision3d at osflash.org
> Message-ID:
> <f66fee040905060230k15d8f44boe69540b79c7485c at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> A Flash displayobject wont detect mouse events on any part of it
> that is
> 100% transparent. The typical way to get around this is to put the
> mouse
> event on the scene, and then manually figure out if the mouse event
> should
> be affecting the transparent displayobject.
>
>
> On Wed, May 6, 2009 at 2:18 AM, Sandeep Menon <sandeepmenon24 at gmail.com
> >wrote:
>
>> so, if i have a viewport that's embedded in a UIComponent of the
>> same size,
>> being transparent, I'll need to add the listener to the scene object
>> instead?
>>
>>
>> On Wed, May 6, 2009 at 2:18 PM, Steve D <kruass at gmail.com> wrote:
>>
>>> If the UIComponent or Canvas have solid backgrounds, and they will
>>> detect
>>> a hittest. You can put your event listener on them. If they are
>>> transparent (as the viewport is), then you'll need the listener on
>>> the
>>> scene, and do bounds checking in the event handler method.
>>>
>>>
>>>
>>> On Wed, May 6, 2009 at 1:12 AM, Sandeep Menon <sandeepmenon24 at gmail.com
>>> >wrote:
>>>
>>>> Hi,
>>>>
>>>> I've got the following setup in a papervision application I'm
>>>> working on.
>>>>
>>>> - A Viewport3D object, that's added as a child of a
>>>> - UIComponent, that in turn is added as a child to a
>>>> - A custom object, that's derived from a Canvas class
>>>>
>>>> What i want to do is detect any mouse events that happen within the
>>>> viewport, not just those that occur over any scene objects.
>>>>
>>>>
>>>> How would I go about handling this, by adding the listener to the
>>>> viewport itself or even the UIcomponent object, rather than
>>>> dealing with it
>>>> at the Canvas-derived object?
>>>>
>>>> Thanks,
>>>> sm
>>>>
>>>>
>>>> _______________________________________________
>>>> Papervision3D mailing list
>>>> Papervision3D at osflash.org
>>>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>>>
>>>>
>>>
>>> _______________________________________________
>>> Papervision3D mailing list
>>> Papervision3D at osflash.org
>>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>>
>>>
>>
>> _______________________________________________
>> Papervision3D mailing list
>> Papervision3D at osflash.org
>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>
>>
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>
> End of Papervision3D Digest, Vol 32, Issue 11
> *********************************************
Gwilym Johnston
e: me at gwilym.com
w: www.gwilym.com
m: + 44 (0) 7595 727365
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