lessrain blog

Bumptop, now available in Flash

Thursday, July 19th, 2007 by Carsten Schneider

Coming soon. Patrick wants someone to do this as a background transparent Air application so he can replace his desktop interface.

Flash: How to add Video texture in Papervision 3D

Sunday, April 15th, 2007 by Luis

I have received loads of requests asking how to diaplay a FLV as a texture in Papervision 3D using AS3.

The concept is very basic, you need to snapshot the video object where the video is running using BitmapData.draw(), and then set the result in the texture, and the rest is done by the 3D engine. ( See demo here)

~~Notice in the code below a small hack by Chris Chen to be able to draw a media source in AS3 bypassing security errors.~~

Code Updated for latest Flash player and PV3D GreatWhite:

PLAIN TEXT

Actionscript:

package com.lessrain.projects.luis.pv3dWhite.video3d
{
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.AsyncErrorEvent;
import flash.events.Event;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.media.Video;
import flash.net.NetConnection;
import flash.net.NetStream;
import flash.system.Security;
import org.papervision3d.cameras.Camera3D;
import org.papervision3d.materials.BitmapMaterial;
import org.papervision3d.objects.DisplayObject3D;
import org.papervision3d.objects.primitives.Plane;
import org.papervision3d.render.BasicRenderEngine;
import org.papervision3d.scenes.Scene3D;
import org.papervision3d.view.Viewport3D;
/**
* @author Luis Martinez, Less Rain (luis@lessrain.com)
*/
public class Video3D
{
private var _target : Sprite;
private var _container : Sprite;
private var _viewport : Viewport3D;
private var _renderer : BasicRenderEngine;
private var _scene3D : Scene3D;
private var _camera : Camera3D;
private var _rootNode : DisplayObject3D;
private var _connection : NetConnection;
private var _stream : NetStream;
private var _video : Video;
private var _videoWidth : Number = 320;
private var _videoHeight : Number = 240;
private var _videoTexture : BitmapData;
private var _planeTexture1 : BitmapData;
private var _planeTexture2 : BitmapData;
private var _srcRect1 : Rectangle;
private var _srcRect2 : Rectangle;
private var _basePoint : Point = new Point(0, 0);
public function Video3D()
{
Security.loadPolicyFile("http://www.yourdomain.com/cross-domain.xml");
}
public function initialize() : void
{
_srcRect1 = new Rectangle(0, 0, _videoWidth>> 1, _videoHeight);
_srcRect2 = new Rectangle(_videoWidth>> 1, 0, _videoWidth>> 1, _videoHeight);
_videoTexture = new BitmapData(_videoWidth, _videoHeight);
_planeTexture1 = new BitmapData(_videoWidth>> 1, _videoHeight);
_planeTexture2 = new BitmapData(_videoWidth>> 1, _videoHeight);
initialize3D();
loadVideo();
createPlanes();
_container.addEventListener(Event.ENTER_FRAME, loop3D);
}
private function initialize3D() : void
{
_container = new Sprite();
_target.addChild(_container);
_viewport = new Viewport3D(990, 600, false, false);
_container.addChild(_viewport);
_renderer = new BasicRenderEngine();
_scene3D = new Scene3D();
_camera = new Camera3D();
_camera.zoom = 8;
_camera.focus = 200;
_rootNode = new DisplayObject3D();
_scene3D.addChild(_rootNode);
}
private function loadVideo() : void
{
var customClient : Object = new Object();
customClient["onCuePoint"] = cuePointHandler;
customClient["onMetaData"] = metaDataHandler;
_connection = new NetConnection();
_connection.connect(null);
_stream = new NetStream(_connection);
_stream.checkPolicyFile = true;
_stream.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
_stream.client = customClient;
_video = new Video(_videoWidth, _videoHeight);
_video.attachNetStream(_stream);
_stream.play('http://www.blog.lessrain.com/wp-content/upload/papervideo/myvideo.flv');
}
private function cuePointHandler(infoObject_ : Object) : void
{
}
private function metaDataHandler(infoObject_ : Object) : void
{
}
private function asyncErrorHandler(event : AsyncErrorEvent) : void
{
}
private function createPlanes() : void
{
var material1 : BitmapMaterial = new BitmapMaterial(_planeTexture1);
material1.oneSide = false;
var plane1 : DisplayObject3D = _rootNode.addChild(new Plane(material1, _videoWidth>> 1, _videoHeight, 4, 4), "plane1");
plane1.x = -_videoWidth>> 2;
var material2 : BitmapMaterial = new BitmapMaterial(_planeTexture2);
material2.oneSide = false;
var plane2 : DisplayObject3D = _rootNode.addChild(new Plane(material2, _videoWidth>> 1, _videoHeight, 4, 4), "plane2");
plane2.z = _videoWidth>> 2;
plane2.rotationY = -90;
}
private function loop3D(event_ : Event) : void
{
_rootNode.rotationY += ((-_container.mouseX * 0.5) - _rootNode.rotationY) / 10;
_rootNode.rotationX += ((-_container.mouseY * 0.5) - _rootNode.rotationX) / 10;
_videoTexture.draw(_video);
_planeTexture1.copyPixels(_videoTexture, _srcRect1, _basePoint);
_planeTexture2.copyPixels(_videoTexture, _srcRect2, _basePoint);
_renderer.renderScene(_scene3D, _camera, _viewport);
}
public function get target() : Sprite
{
return _target;
}
public function set target(target_ : Sprite) : void
{
_target = target_;
}
}
}

Posted in 3D, Flash, General, Papervision 3D | 33 Comments »

Some Bits and Pieces…

Sunday, March 25th, 2007 by Luis

The past two weeks loads of new things have happened around, I'm not talking about Adobe Apollo which it's public alpha release has been already covered for the whole week all over the place without interruption.

The week started in a new office with loads of work to do, new people coming in, and the discovery of a new (I mean 'new' for me) music band which maybe is not 'Avant garde enough' for some people, but caught my attention dramatically.

This week I had the opportunity to play for the first time with the Nintendo Wii . Yes, I'm aware that playing with the Wii is nothing specially new , but I'm coming from a place where important things are around this instead of the latest video game technology, so my delay in this matter is completely understandable.
I have been thinking for weeks to buy a new PS3 but after playing with the Nintendo Wii I have decided that my money is going to end up in Nintendo's pocket rather than Sony's bault.

In terms of work and 'Flashy stuff' as I wrote above, the release of Apollo public beta hasn't been in my priority list since I don't have time to play around with it. This does NOT mean that I consider Apollo a good tool or not, I just simply don't know and I don't need Apollo for my daily work yet (I would give it a try soon).

Three blog entries from 3 different blogs in my daily "must read because this guys can go bananas" list caught my attention last week when I think in 'Flashy stuff', all of them are related with flash and 3D:

Papervision3D runs inside a commercial project for the first time, Read more here.
WiiFlash and Papervision3D, pitch and roll rotations. Read more here.
AS 3 Biped Rig by the almighty Jim Armstrong, I just can't wait to see the final result of this project.
BTW: Do not miss his online publications, specially the Computational Geometry TechNotes.

Posted in 3D, Better things to do, Flash, General, Papervision 3D | No Comments »

Papervision 3D: PaperVideoRocky-Dudes

Sunday, March 4th, 2007 by Luis

New Tortilla recipe, just mix 100 grams of Paperdude with 250 grams of PaperVideo and leave them cook in Papervision 3D for 20 minutes, then you get the PaperRockyDudeTribute with tofu head.

You need the latest Adobe Flash plugin to see the demo.

.

Click here to see the demo.

NOTE: If you use Firefox and you experience problems displaying the 3 videos of the demo at the same time, you can change http.max-persistent-connections-per-server settings in about:config.

Just for paperFun.

More Papervision and Video Links:

Related Papervision 3D stuff:

Papervision 3D category.

Posted in 3D, Flash, General, Papervision 3D | 1 Comment »

Flash: More on 3D (swfz)

Saturday, March 3rd, 2007 by Luis

Another interesting 3D Flah work (swfz engine by Jono) showing some physics, 3D sound, collision detection and many other cool features.

The author of the engine explains in this old post four ways of achieving 3D in Flash and his interest for rasterization.

The demo he presents has some bugs as he mentions in his post, but still worth to take a closer look at what he has achieve so far. Be aware that we are talking about Adobe Flash with all its limitations.

Posted in General, 3D, Flash | No Comments »

Flash: MoCap

Friday, March 2nd, 2007 by Luis

Two fantastic pieces of Flash experimentation about play and parse MoCap data files at runtime.

This MoCap studies combined with 3D Flash engines such as Papervision3D could bring new satisfactions to the 3D Flash community and other creative communities around.

MoCap experience by Didier Brun:

Motion capture (oos.moxiecode):

Posted in General, 3D, Flash | 3 Comments »

3D in Flash?

Friday, February 23rd, 2007 by Luis

Yes, well, as usual Papervision 3D topic, but so far until something else comes out, Papervision 3D is the best realistic option to generate and visualize 3D Flash content and 3D content in Flash.

Here some interesting views about PaperVision 3D and the future of 3D Flash content :

My 2 cents on 3D in Flash. (valveblog)
The limits of software rendering. (kaourantin)

Posted in 3D, Flash, Papervision 3D | No Comments »

Papervision 3D: Going Bananas

Friday, February 16th, 2007 by Luis

Most of you already know the meaning of "going bananas" expression. If you don't know it, just take a closer look at this new Papervision 3D demo (3D Bumpmapping) by Ralph Hauwert.

Going Bananas means to go wild or crazy.

Related Posts:

Posted in 3D, AS3, Flash, Papervision 3D | No Comments »

Flash: Flaxus

Thursday, February 15th, 2007 by Luis

Flaxus is a software developed by i2off.org and r3nder.net under the TOPLAP manifesto, to perform visual performance in real time.

The graphic piece is generated by code at the same moment of its execution, thus, the artistic experience comes closer to a performance event such as music or dancing.

Read more here.

See online demo here.

Posted in 3D, Flash, Software, Tools | 2 Comments »

Papervision 3D Demos

Wednesday, February 14th, 2007 by Luis

Check out this examples of some fantastic work done with Papervision3D.

Related Posts:

Posted in 3D, AS2, AS3, Flash, Papervision 3D | No Comments »

Papervision3D: PaperDude Demo

Thursday, February 8th, 2007 by Luis

This is not about performance or Collada or clipping issues in PV3D, this is just about Paperfun and imperfections.

The very first time I heard about Papervision 3D I thought about my first experience with 3D when I was a little kid, it wasn't related with computers at all, it was a very basic set of plane paper dolls similar to this.

Based on that old memories I decided to have a bit of Paperfun and crete the Paperdude.

Click here to see the demo.

UPDATE 20-02-2008 (Paperdude Second Generation):

Related Posts:

Developing Flight Lab

Posted in 3D, AS2, AS3, Flash, Papervision 3D | 15 Comments »

Papervision 3D: FLV spreading around walls

Thursday, January 25th, 2007 by Luis

Finally I had a little bit of time to play around with Papervision 3D, a fantastic 3d engine for Flash.

At the moment I couldn't play with the AS3 version because some conflicts I have between Flex builder and Eclipse, but so far the AS2 version of the engine is quite impressive.

I've been trying to spread a FLV around the walls of a cube, it took me around 15 minutes to do it, easy, clean and fantastic performance.