【3D】脉冲粒子新版本

导读：
　　New Pulse Particles build
　　There's a new build of Pulse Particlesposted.
　　There's a new rule implemented, "BoundingBoxRule". This will cause particles to bounce within a box. there's an option for specifying the box position/size in the particle explorer, the SimpleParticles interface is updated, and the Object Orientated interface is up to date as well, so everyone can enjoy bouncing particles.

新脉冲粒子的版本，新的版本实现了一个新的约束，即-弹性盒子规则。这个规则使得例子在一个盒子内部弹跳，有一个选项供调节特定的管理器的盒子的位置/尺寸。最简单的例子的接口业已更新，面向对象的接口也即将出现，每个人都可以享受弹跳粒子带来的乐趣。
　　Particle emitters no longer have to be a point source. You can specify a width &height to emit particles along. This has also been added to the particle explorer.

基本的粒子发射器再也不需要是一个点源，你可以设置粒子源的宽，高。这些选项已经添加到了粒子管理器
　　All the internal angles have been transitioned from degrees to radians. A lot less computation is taking place now. The external API's still take degrees, so there shouldn't be any code changes for users.

所有的你不角度都已经转化为了弧度，因此少了很多不必要的计算。当然外部的API仍然接受角度，为了用户考虑嘛
　　Gravity works completely different now. Before it was applying a y-offset to simulate gravity. Now it actually changes angle/speed. This gives a more realistic gravity and allows the rotateToAngle option to work with gravity effects.

重力的作用完全不同了，以前通过使用Y位移来模拟重力，现在是改变速度/角度，这样就可以产生更加真实的重力效果
　　The jitter when using PointSwarm or MousePointSwarm is gone.

本文转自
http://www.rogue-development.com/blog/2008/01/new-pulse-particles-build.html