I create particle demo build with Papervision3D for the technical book of wonderfl. BitmapEffectLayer is effective for drawing particles.

• demo
• source

And I posted demo & source code at wonderfl (here).

I create flash demo with Papervision3D and Stardust – as3 particle engine. Stardust supports 2D and 3D and easy to extend.

• demo (Flash Player 9)

Three demo of learning is posted at wonderfl. Source code and demo is here.

• [Stardust] マウスに追随するパーティクル
• [Stardust] 3Dオブジェクトの軌道にパーティクルをつける
• [Stardust] キラキラの3Dパーティクル