January 2020
Intermediate to advanced
356 pages
6h 4m
Chinese
Content preview from Swift游戏开发经典实例
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Scene Kit
｜
261
解决方案
首先需要定义粒子系统自身。
点击
File
菜单，选择
New
→
File
。选择
SceneKit Particle System File
。点击
Next
，
选择一种模板。
要加载粒子系统，需要创建
SCNParticaleSystem
实例，并指定要加载的文件名：
if let particleSystem = SCNParticleSystem(
named: "Fire.scnp", inDirectory: nil) {
let particlesNode = SCNNode()
particlesNode.position = SCNVector3(2, 5, 5)
particlesNode.addParticleSystem(particleSystem)
scene.rootNode.addChildNode(particlesNode)
}
粒子系统不等于节点，相反，你需要创建粒子系统，然后将它附加到另一个
节点上。
讨论
粒子系统能创建大量单独的粒子，而粒子是简单图形形状，它们根据设计者定义的
模式进行运动。
例子系统能够很好地模拟没有固定形状的对象和现象，如云朵或雨水。
ni kyi
在
SceneKit
中尝试一下各种属性，看看粒子系统的外观会有什么变化。
8.18 Metal
问题
你想学习
Metal
，这是
SceneKit
中的一种低级绘图引擎。
262
｜
第
8
章
解决方案
下载并学习
Metal
基础课程示例（
https://apple.co/2 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.