本游戏资料是个关于PA粒子场特效脚本Unity素材资源，大小：182 MB，格式：unitypackage，使用软件：Unity，供广大设计师学习使用，语言：英语。

Unity3D是一个让你轻松创作的多平台的游戏开发工具，是一个全面整合的专业游戏引擎。Unity代表了一个质的飞跃——内置的光照贴图（lightmapping）、遮挡剔除（occlusion culling）和调试器。编辑器经过彻底革新，让你可以获得卓越的性能体验。不可思议、无法阻挡的产品已经看到了曙光。

Unity是一款跨平台的游戏开发工具，从一开始就被设计成易于使用的产品。作为一个完全集成的专业级应用，Unity还包含了价值数百万美元的功能强大的游戏引擎。Unity 4作为一个游戏开发工具，它的设计主旨就是让你能够创建令人惊讶的游戏。如果你之前尝试过Unity，请查看Unity 3都做了哪些更新。如果你是第一次尝试，那就好好看看吧，看Unity都能为你带来什么。Unity作为一种开发环境，可让你脱离传统的游戏开发方式，以一种更简单的方式专注于你的游戏开发。开发网络游戏、移动游戏、单机游戏，Unity都能完全胜任。

PA Particle Field Scripting Effects

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Requires Unity 5.0.1 or higher.

Webplayer Demo | Animated Documentation | Forum

PA Particle Field is a GPU Based alternative particle system, built from scratch specifically designed for looping ambient effects (though it can do so much more).

Built to reduce drawcalls, fillrate and CPU overhead (especially on mobile devices and VR), each field supports up to 16250 particles with just 1 drawcall and can be fully customized.

Features:

New Turbulence modes

Mesh Particles

WorldSpace and LocalSpace simulation

Streched billboards

Custom facing direction

Multiple sprites in a single field (using a spritesheet)

Spritesheet animation

Per particle color

Custom shader support with helpful macros

Also Exclusion Zones allow you to exclude particles from areas and assign priority between them, useful for bus shelters in the rain etc. Each field can handle 3 Exclusion Zones at once and are assigned and handled automatically.

The package comes with 7 demo scenes:

Snow, Caustics, Rain, Stardust, Bokeh, Clouds, Meshes, Animated Meshes, Fish plus a custom vertex program demo and a comparison scene showing PA Particle Field handling 195000 particles with ease.

PA Particle Field manages its efficiency by getting rid of particle birth and death. Instead it recycles particles using a bounding box, when a particle reaches the edge of the box it reappears on the opposite side.

When simulating in worldspace (the default mode) the field can be moved without moving the particles it controls, giving the effect of simply revealing the particles at the new position, creating the illusion of an infinite particle field.