[Papervision3D] Displaying a preloader for a Collada (.DAE) file

[Admiral]

Pardon, what?
In the message that you just sent to me, there are so many chains of  
conversation going that I have lost track of any original message you  
might have meant to send to me.
Can you please clarify?
Talk with you soon,
-Admiral


On Sep 2, 2010, at 9:54 PM, amandak695 [via Papervision3D] wrote:

>
> Admiral wrote:
> I am very interested in learning about how you would go about  
> applying a callback function to a material that already exists on a  
> DAE. Does anyone know how you would go about using  
> BitmapFileMaterial.callback?
>
> As it is in my scene, I have a function that I call when a DAE has  
> completed loading, and I apply it like this:
>
> <pre>
> package {
>
>         //...import everything...
>
>         public class myScene extends Sprite {
>
>                 //...set up all my variables, camera, scene,  
> viewport...
>                 var model = new DAE();
>
>                 public function myScene(){
>                         //...position the camera, add the viewport,  
> all of that...
>
>                          
> model.addEventListener(FileLoadEvent.ANIMATIONS_COMPLETE,  
> daeLoadHandler);
>                         model.load('model.dae');
>
>                         addEventListener(Event.ENTER_FRAME, loop);
>                 }
>
>                 //...define the loop function, make it render...
>
>                 public function daeLoadHandler(event:Event){
>                         var daeInstance = event.target;
>                         for (var matName:String in  
> daeInstance.materials.materialsByName) {
>                                 var daeMat:MaterialObject3D =  
> daeInstance.materials.materialsByName[ matName ];
>                                 daeMat.callback = callbackFunction;
>                         }
>                 }
>
>                 public function callbackFunction(event:Event){
>                 //...make my preloader animation go away...
>                 }
>
>         }
> }
> </pre>
>
> My code breaks at the bolded line above; I'm not sure how to use  
> 'callback'. Any ideas, anyone?
>
> For the longest time, I had been battling with the issue of not  
> being able to display a progress bar for the percent loaded of all  
> of the DAE files I was pulling into my scenes. Now that I've got  
> that figured out, it seems that my next challenge is to find a way  
> to find out the download progress of all of the bitmap files that  
> belong to the materials that come on those DAEs by default... I  
> really don't want to have to spend the time to put those materials  
> on my DAEs in my 3D app just to have to assign them to the model  
> again in my actionscript.
>
> I think it would be the greatest thing since sliced bread if someone  
> could find a way to return an overall download progress percentage  
> from an array of assets they want loaded.
>
> Eric-Paul Lecluse, thank you for bringing to my attention the  
> 'callback' property and 'COLLADA_MATERIALS_DONE' event.
>
> Has anyone been able to make any use of the 'COLLADA_MATERIALS_DONE'  
> event? Might you be kind enough to post a quick example of how to  
> use it?
>
> -Admiral
>
>
>
>
> Eric-Paul Lecluse wrote:
> Hey Tim,
>
> The ProgressEvent.PROGRESS works great for the DAE/XML, but not for
> possible bitmap textures that are loaded in automatically. The Collada
> class used the FileLoadEvent.COLLADA_MATERIALS_DONE, but this seems to
> be unimplemented in the DAE.
>
> Now, there is the static BitmapFileMaterial.callback
> <http://lostboys.epologee.net/papervision/greatwhite.doc/html/org_paperv
> ision3d_materials_BitmapFileMaterial.html#callback> , to which you  
> could
> assign a method that's triggered when all bitmap loading has finished.
> But I'm not sure if you want us abusing that property instead of maybe
> listening to an event of a kind.
>
> What's your advice?
>
> Cheers,
> Eric-Paul.
>
>
> -----Original Message-----
> On Behalf Of Tim Knip
> Subject: Re: [Papervision3D] Displaying a preloader for a Collada  
> (.DAE) file
>
> dae = new DAE();
> dae.addEventListener( ProgressEvent.PROGRESS, myLoadHandler );
> dae.load( "myfile.DAE" );
>
> Tim
> 2007/12/25, garion1 <rowan at simplicit.co.za>:
>
> >
> > Can someone please explain how to display a preloader for a .dae  
> file.
>
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>
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