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标题: [Flare3D] Flare3D粒子效果 -- 火焰 [打印本页]

作者: yeu1233 时间: 2012-8-31 08:53
标题: [Flare3D] Flare3D粒子效果 -- 火焰

var b:* = new _Img();

var pm

articleMaterial3D = new ParticleMaterial3D();


pm.filters.push(new TextureFilter(new Texture3D(b.bitmapData)));


pm.filters.push(new ColorParticleFilter([0xffffff, 0xffff00, 0xff0000, 0x000000], [1, .5, .2, 0]));


pm.build();


var fireEmiter

articleEmiter3D = new ParticleEmiter3D("", pm, new FireParticle());


fireEmiter.particlesLife = 40;


fireEmiter.emitParticlesPerFrame = 15;


_view.scene.addChild(fireEmiter);

package


{


         import flare.core.*;


         import flash.geom.*;





         /**


         * ...


         * @author Ariel Nehmad


         */


         public class FireParticle extends Particle3D


         {


                  private var gravity:Number;


                  private var velocity:Vector3D = new Vector3D();


                  private var rotationVelocity:Number = 0;


                  private var sizeVelocity:Number;





                  override public function clone()

article3D


                  {


                        // return a new custom particle.


                        // the ParticleEmiter3D will clone all particles he needs.


                        return new FireParticle();


                  }





                  override public function init( emiter

articleEmiter3D ):void


                  {


                        super.init( emiter );





                        /* all particle initialization here. */





                        super.x = Math.random() * 10.0 - 5.0;


                        super.y = Math.random() * 10.0 - 5.0;


                        super.z = Math.random() * 10.0 - 5.0;


                        super.sizeX = 5;


                        super.sizeY = 5;








                        velocity.x = Math.random() * 1.0 - 0.5;


                        velocity.y = Math.random() + 0.5;


                        velocity.z = Math.random() * 1.0 - 0.5;





                        if ( emiter.useGlobalSpace ) velocity = emiter.localToGlobalVector( velocity );





                        velocity.scaleBy( 2 );





                        rotationVelocity = Math.random() * 0.3 // - 2.5


                        sizeVelocity = Math.random() * 0.1 + 0.15;


                  }





                  override public function update( time:Number ):void


                  {


                        /* update the particle. */








                        x += velocity.x;


                        y += velocity.y;


                        z += velocity.z;





                        if ( y < 0 ) y = 0;





                        sizeX += sizeVelocity;


                        sizeY += sizeVelocity;


                        rotation += rotationVelocity;


                  }


         }


}

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