[Papervision3D] PointSprites/Billboards/Particles (Re: Floating 2D Objects)

[Simon Oliver]

Ah great, it would be nice to be able to add MCs/Sprites to be able to use vectors, full interaction etc. Do let me know if theres anything else I can help with - its great to see P3d developing so quickly.

Simon

----- Original Message ----
From: Carlos Ulloa <c4rl054321 at gmail.com>
To: Papervision3D at osflash.org
Sent: Wednesday, 3 January, 2007 10:54:56 AM
Subject: Re: [Papervision3D] PointSprites/Billboards/Particles (Re: Floating 2D Objects)

Nice one Simon.

I've got a Billboard object that hasn't been updated for a while, that's why it's not included in the package.

At the time, I thought it would be better to split the Billboard object in two different objects, one that renders with beginBitmapFill like yours, but using drawRect, which I think would be faster, and another one that adjusts the position and scale of a movieclip or sprite. John and I have also done some work on the Stars object, that renders pixel particles using setPixel.


On top of that, there's the Paper object, that skews movieclips.

Once I sort out the rotations, I probably get into this simpler objects. Your code would be very useful then.

Thanks,

C4RL05

// noventaynueve.com
// 
papervision3d.org



On 03/01/07, Simon Oliver <psifli at yahoo.com> wrote:
I've made a pointSprite class for 2D objects (couldnt find functionality like this in earlier builds of P3D, not sure if this is there now). I've used it for particles and billboarding, such as:


http://www.handcircus.com/temp/p3d/particles/

(shadows a bit broken for now :)


It uses a new geom class called pointSprite which implements the same interface as face3D so that it can be sorted in the same fashion (so things like MeshGroup can sort particles that may bounce into other objects without any popping).


Theres also a new class called Billboard that uses pointSprite (it can be directly added to a scene) to allow simple2D objects to be
 added. You can enable sorting and scaling as you see fit, and specify the registration point.

I've attached the source. Hope they are of use!

Simon

_________________

http://www.handcircus.com
http://www.simonoliver.com


----- Original Message ----
From: Spencer Campbell <spencer.campbell at blastradius.com>





 
 






I was wondering how I would go about creating 2D objects
that will be positioned within the scene but with no perspective applied. 
For example, the lights on the walls of Rudebox exhibit this behavior.  I'd
appreciate any help you can give me with this J

 

  
 

Much Respect,
 

Spence.
 




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