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Metal入门资料015-噪点技术

float2 f = fract(p); float bottom = mix(random(i + float2(0)), random(i + float2(1.0, 0.0)), f.x); 我们再次添加timer uniform以动画内容。 输出图像应如下所示: 它看起来很酷,但仍然不够现实。 为了使它看起来更逼真,我们需要了解并应用纹理。如果您有兴趣,可以阅读更多关于bilinear filtering,关于value noise和关于Fractional Brownian motion的信息。 您还可以看到Cubic Hermit Spline的示例。 源代码在这里

Docker 上传镜像&拉取镜像

latest: Pulling from docker.io/fantj/nginx Digest: sha256:e4f0474a75c510f40b37b6b7dc2516241ffa8bde5a442bde3d372c9519c84d90 Status: Downloaded newer image for docker.io/fantj/nginx:latest [root@FantJ ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/openjdk 8-jre bef23b4b9cac 2 weeks ago 443 MB docker.io/fantj/nginx latest ae513a47849c 4 weeks ago 109 MB docker.io/nginx latest ae513a47849c 4 weeks ago 109 MB [root@FantJ ~]#

每日科技英语:arduino术语5

每日科技英语:arduino术语5 Arduino Technical Specs: 5. Clock Speed(时钟频率/速度) 16 MHz In a computer(电脑), clock speed refers to the number of pulses(脉冲) per second generated by(由.产生) an oscillator(晶振) that sets the tempo(速度/频率) for the processor(处理器). Clock speed is usually measured in (用.

聊聊新媒体与传播(英文)

聊聊新媒体与传播(英文) 本文是我申请某港校新媒体硕士时准备的材料(因此采用了英文),在此和谐了相关的个人信息。文章主要想表达对新媒体及传播领域相关的一些个人思考,现在拿出来与大家分享。 正文如下: Media and New Media What is new media?

iOS中self与super

通过self访问成员变量格式:self- 成员变量名 4.self使用注意 同时有对象方法和类方法存在的时候,self不会调错 self只能在方法中使用;不要使用self来调用函数,也不可以在函数内部使用self; 使用self调用本方法,导致死循环调用。 二.super关键字 1.super基本概念 super是个编译器的指令符号,只是告诉编译器在执行的时候,去调谁的方法.

Kotlin 笔记 反射

Kotlin 笔记 反射 Kotlin 中函数和属性是一等公民,可以直接引用它们。 要使用reflection需要手动添加kotlin-reflect.jar 类引用 val c = MyClass::class kotlin中定义的类的type是KClass,要得到java的class reference,需要调用MyClass::class.java 函数引用 fun isOdd(x: Int) = x % 2 !

让爱好成为优势――BBC每日学习

不一致 n. (金属等的)刺耳的撞击声 不协调 冲突 时 态: clashed, clashing, clashes clash with与…冲突,不调和 15.stretch back回溯 The legacy of occupation and empire that stretches back over centuries? This — this debate stretches back decades. 实际上,这并不是第一次就移除邦联旗进行辩论,对吧?这一辩论可追溯至几十年前。 海内存知己,天涯若比邻。济南半日相聚,实属不易。期待友谊的第一个十年

24 Hours in Amsterdam

Japanese are so good at fusing food. But this is a topic for another day.) and pancakes, topped with fruits and syrup or meat and vegetables. sweet pancake salty pancake Desperados and Heineken beer Marijuana If you've got a plan to try marijuana in Amsterdam, I can assure you it's really easy to find. most cafes and bars sell it. There are also shops selling "seed" and "cannabis". cruises are their houses on the move!

298. Binary Tree Longest Consecutive Sequence

= null) { if (root.val root.right.val) { dfs(root.right, count + 1); } } return count; } public static void main(String[] args) { TreeNode root = new TreeNode(1); TreeNode three = new TreeNode(3); root.right = three; three.left = new TreeNode(2); TreeNode four = new TreeNode(4); three.right = four; four.right = new TreeNode(5); BinaryTreeLongestConsecutiveSeq blcs = new BinaryTreeLongestConsecutiveSeq(); int result = blcs.longestConsecutive(root); System.out.println(result); // 3 } }

0610 - AES256CBC, my first wheel for Python

0610 - AES256CBC, my first wheel for Python AES256CBC Wrapper for AES 256 CBC using Python." password = AES256CBC.generate_password() encrypted = AES256CBC.encrypt(txt, password) decrypted = AES256CBC.decrypt(encrypted, password) assert decrypted == txt Note: The password must be exactly 32 chars long for AES-256. The encrypted strings are base 64 encoded.

python文档学习: 逻辑控制相关

python文档比如while或者if后接数字, 如果等于0, 就相当于假, 如果非零那就是真:a = 1 b = 2 if not a * 2 - b: print 'hello' 如果接序列, 如果非空就代表真, 否则为假:a = [1, 3] b = [] if a: blabla... if b: blabla... 比较符可以连着用:if a b and c or d, 相当于((not (a b)) and c) or d and和or被称作是short-circuit操作符. 执行顺序是从左到右, 一旦得到确定值后面的逻辑运算就不做了.

Open files in 'rt' and 'wt'有什么区别?

Open files in 'rt' and 'wt'有什么区别? 今天看穿山甲的那本爬虫书,在创建CSV文件那一章节看到这样的代码 csvFile = open("files/editors.csv", 'wt', newline=''