uncleflo
Registered since September 28th, 2017
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Webcam Web Design, Private Chat, Tipping & more -
Saved by uncleflo on April 12th, 2021.
Webcam Web Development: Adult Creative's streaming solution offers users the ability to send and receive tips, enjoy private or public cam shows and chat live, all whilst being optimised for low-latency across multiple devices. Webcam Features: Webcam streaming software has to be flawless. You need an easy user interface, optimisation on every device and great features. With our Webcam system, you’ll get all of that and more. Our comprehensive system is incredibly simple to use and allows users to expand their services with the use of private shows, private chats, group chats, tip sending and ability to receive premium content.
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The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)
Saved by uncleflo on June 18th, 2019.
I’ve been dismayed to discover just how many software developers aren’t really completely up to speed on the mysterious world of character sets, encodings, Unicode, all that stuff. A couple of years ago, a beta tester for FogBUGZ was wondering whether it could handle incoming email in Japanese. Japanese? They have email in Japanese? I had no idea. When I looked closely at the commercial ActiveX control we were using to parse MIME email messages, we discovered it was doing exactly the wrong thing with character sets, so we actually had to write heroic code to undo the wrong conversion it had done and redo it correctly. When I looked into another commercial library, it, too, had a completely broken character code implementation. I corresponded with the developer of that package and he sort of thought they “couldn’t do anything about it.” Like many programmers, he just wished it would all blow over somehow.
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AWS Autoscaling | Autoscaling and Load Balancing in AWS | AWS Training | Edureka - YouTube
Saved by uncleflo on May 24th, 2019.
In this Edureka tutorial on AWS Autoscaling and Load balancing, you will learn how to implement Autoscaling and Load Balacing service in AWS practically. Also, we will see how we can divert our traffic to different servers based on their path name. We have covered the following topics in this tutorial: What are Snapshots and AMIs? Why AutoScaling? What is AutoScaling? What is a Load Balancer? Hands-on.
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iPerf - The ultimate speed test tool for TCP, UDP and SCTP
Saved by uncleflo on October 23rd, 2018.
iPerf3 is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports tuning of various parameters related to timing, buffers and protocols (TCP, UDP, SCTP with IPv4 and IPv6). For each test it reports the bandwidth, loss, and other parameters. This is a new implementation that shares no code with the original iPerf and also is not backwards compatible. iPerf was orginally developed by NLANR/DAST. iPerf3 is principally developed by ESnet / Lawrence Berkeley National Laboratory. It is released under a three-clause BSD license.
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You Don't Need jQuery!
Saved by uncleflo on April 7th, 2018.
Free yourself from the chains of jQuery by embracing and understanding the modern Web API and discovering various directed libraries to help you fill in the gaps. In this fifth installment of “You Don’t Need jQuery (anymore)”, I’m going to talk about dealing with events in the browser without jQuery. As always, each section will cover the jQuery approach, followed by a solution using the native Web API instead. After reading this post on events, you should be confident enough to deal with events in your own project without using jQuery. As I’ve mentioned (many times) before, this blog is not about bad-mouthing jQuery. jQuery is, without a doubt, ubiquitous in the world of web development. In the earlier days of web development, jQuery was required to smooth out the significant implementation differences and bugs found in various browsers when dealing with the DOM and the Web API as a whole. Also, the Web API was quite primitive at the time, in some respects, and jQuery helped to make development a bit more intuitive.
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Scrum Certification, Agile Certification | Scrum, Agile Training
Saved by uncleflo on December 28th, 2017.
SBOK™ Guide - A Guide to the Scrum Body of Knowledge (SBOK™ GUIDE). A Guide to the Scrum Body of Knowledge (SBOK™ Guide) provides guidelines for the successful implementation of Scrum-the most popular Agile product development and project delivery methodology The Third Edition of the SBOK™ Guide provides expanded framework related to scaling Scrum for large projects, and scaling Scrum for the Enterprise.
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Zero Knowledge Range Proof
Saved by uncleflo on December 28th, 2017.
ING's zero knowledge range-proof precompiled contract for the go-ethereum client. One fundamental concern in blockchain technology is the confidentiality of the data on the blockchain. In order to reach consensus between all independent nodes in a blockchain network, each node must be able to validate all transactions (for instance against double-spent), in most cases this means that the content of the transactions is visible to all nodes. Fortunately several solutions exist that preserve confidentiality on a blockchain (private transactions, HyperLedger Fabric Channels, Payment Channels, Homomorphic encryption, transaction-mixing, zero knowledge proofs etc.). This article describes the implementation of a zero-knowledge range-proof in Ethereum. The zero knowledge range proof allows the blockchain network to validate that a secret number is within known limits without disclosing the secret number. This is useful to reach consensus in a variety of use cases: Validate that someone's age is between 18 and 65 without disclosing the age; Validate that someone is in Europe without disclosing the exact location; Validate that a payment-amount is positive without disclosing the amount (as done by Monero). The zero-knowledge range-proof requires a commitment on a number by a trusted party (for instance a government committing on someone's age), an Ethereum-user can use this commitment to generate a range-proof. The Ethereum network will verify this proof.
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Github - HHVM
Saved by uncleflo on December 28th, 2017.
HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining the development flexibility that PHP provides. HHVM supports Hack, PHP 5 and the major features of PHP 7. We are aware of minor incompatibilities, so please open issues when you find them. HHVM also supports many extensions as well. HHVM should be used together with a webserver like the built in, easy to deploy Proxygen, or a FastCGI-based webserver on top of nginx or Apache.
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Infinote Protocol
Saved by uncleflo on June 23rd, 2017.
This site describes the Infinote protocol as currently implemented by libinfinity. It provides real-time collaborative editing of documents with the main focus being on collaborative plain text editing. In the meanwhile there are quite a few solutions out there, but all of them implement a different protocol and thus cannot be used with other tools. Our goal is to provide a flexible yet powerful open framework and clients for various environments that can interoperate with each other.
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jinfinote
Saved by uncleflo on June 21st, 2017.
jinfinote is a JavaScript implementation of the Infinote protocol, an open
standard for software supporting collaborative real-time editing of text
files. The goal of this project is to aid in creating a collaborative real-time editor
for the web, similar to EtherPad. Desktop editors such as Gobby are already
available for many platforms, and the intention is to close the missing link to
the web browser.
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Web Services Atomic Transaction (WS-AtomicTransaction)
Saved by uncleflo on November 17th, 2016.
Web Service Atomic Transaction is an OASIS standard. To achieve all-or-nothing property for a group of services, it defines three protocols (completion, volatile two-phase commit, and durable two-phase commit), and a set of services. These protocols and services together ensure automatic activation, registration, propagation and atomic termination of Web services. The protocols are implemented via the WS-Coordination context management framework and emulate ACID transaction properties. Following the standard, a distributed transaction has a coordinator, an initiator, and one or more participants. This document describes the WS-AtomicTransaction namespace. It also contains a directory of links to related resources using Resource Directory Description Language (RDDL) 2.0.
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Secure hash and salt for PHP passwords
Saved by uncleflo on October 17th, 2016.
It is currently said that MD5 is partially unsafe. Taking this into consideration, I'd like to know which mechanism to use for password protection. This question, Is “double hashing” a password less secure than just hashing it once? suggests that hashing multiple times may be a good idea, whereas How to implement password protection for individual files? suggests using salt.I'm using PHP. I want a safe and fast password encryption system. Hashing a password a million times may be safer, but also slower. How to achieve a good balance between speed and safety? Also, I'd prefer the result to have a constant number of characters.
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JSPatterns.com » Object creation patterns
Saved by uncleflo on March 11th, 2016.
OK, think of it as a religious flamewar to the likes of "tabs vs. spaces for indentation". Looks like this particular war is currently (at JSConf and NodeConf) even more heated than it should be. Classes vs prototypes. For or against classes. I personally don't care about the "winner". The thing is that classes currently don't exist in JavaScript. No such thing. However looks like they might in the next iterations of the language (see latest post from Brendan Eich). Some people miss classes so much that they start calling other things classes or come up with some approximation. Problem is, because classes don't exist, people often mean different things when they say "class".
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JavaScript Module Pattern: In-Depth
Saved by uncleflo on March 11th, 2016.
The module pattern is a common JavaScript coding pattern. It’s generally well understood, but there are a number of advanced uses that have not gotten a lot of attention. In this article, I’ll review the basics and cover some truly remarkable advanced topics, including one which I think is original.
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JavaScript: Mixing OOP and Event Driven Programming
Saved by uncleflo on March 11th, 2016.
To expand on my previous article on how to create Objects in JavaScript using Prototypal Inheritence, this article will show you how to implement Event Driven Programming with those objects. Implementing Event Driven Programming in JavaScript sounds difficult, but it's actually rather simpel to implement.To keep with the Prototypal Inheritence theme, we'll create an "EventObject" class that will have the plumbing necessary for implementing Events, and then we'll inherit that class with a simple "Person" class that will have an "onnamechanged" event.
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PHP Websocket Library - Two way real time communication | TechZoneMind
Saved by uncleflo on April 5th, 2015.
From the born of www era and the implementation of JavaScript and ajax, web is looking for a solution to find out real time client-server bidirectional communication. Now It is been suggested to include within HTML5 and has been in full developmental phase. Although it not yet recommenced by W3, it is been wildly implemented in most of modern web browsers including Google Chrome,Opera,Firefox and safari.
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owasp-esapi-php - Project Hosting on Google Code
Saved by uncleflo on February 22nd, 2015.
Don’t write your own security controls! Reinventing the wheel when it comes to developing security controls for every web application or web service leads to wasted time and massive security holes. The OWASP Enterprise Security API (ESAPI) Toolkits help software developers guard against security‐related design and implementation flaws.
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Scratchapixel
Saved by uncleflo on February 22nd, 2015.
Everything You Ever Wanted to Know About Computer Graphics (But Were Afraid to Ask). You love Pixar movies and video games. You would love to learn how they are made and found some books on this topic at the library, but they are full of maths symbols you don't understand!
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Same Side Technique, Point in triangle test
Saved by uncleflo on February 22nd, 2015.
A common way to check if a point is in a triangle is to find the vectors connecting the point to each of the triangle's three vertices and sum the angles between those vectors. If the sum of the angles is 2*pi then the point is inside the triangle, otherwise it is not. It works, but it is very slow. This text explains a faster and much easier method.
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Ray(/segment)-triangle intersection tests for dummies :P
Saved by uncleflo on February 22nd, 2015.
There are various ray-tri tests around. I'll describe a few of the most interesting ones because I think that there's no "definitive" ray-tri intersection. Much depends on the type of application you're going to develop. Some methods are faster if most of the tests are positive (hit), some if they are not (early rejection). Some use lots of memory to precalculate as much as possible so they are very fast for scenes with no cache-hit problems (for examples in scenes with not so many, big triangles and spatial subdivision), while others use less memory and no precalc. etc... The precalculation option is often important so I'll talk about it more here. There are two kinds of precalculations that could be useful: per-frame precalculation (something that can be precalculated for the entire scene, for every triangle, and that just needs to be updated if the triangles are animated, if it changes their position in the next frame). The other type is per-ray-bundle precalculation.
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Calculating reflected ray
Saved by uncleflo on February 22nd, 2015.
This short note gives the equation for a reflected ray as used in many computer rendering applications, eg: ray tracing. Given a ray Ri incident at a point on a surface with normal N one wishes to determine the reflected ray from that point. The geometry and nomenclature is given in the following diagram.
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graphics.stanford.edu/courses/cs148-10-summer/docs/2006--degreve--reflection_refraction.pdf
Saved by uncleflo on February 22nd, 2015.
When writing a ray tracer, sooner or later you’ll stumble on the problem of reflection and transmission. To visualize mirror-like objects, you need to reflect your viewing rays. To simulate a lens, you need refraction. While most people have heard of the law of reflection and Snell’s law, they often have difficulties with actually calculating the direction vectors of the reflected and refracted rays. In the following pages, exactly this problem will be addressed. As a bonus, some Fresnel equations will be added to the mix, so you can actually calculate how much light is reflected or transmitted (yes, it’s possible). At the end, you’ll have some usable formulas to use in your latest ray tracer.
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Intersections of Rays, Planes and Triangles (3D)
Saved by uncleflo on February 22nd, 2015.
The intersection of the most basic geometric primitives was presented in the Algorithm 5 about Intersections of Lines and Planes. We will now extend those algorithms to include 3D triangles which are common elements of 3D surface and polyhedron models. We only consider transversal intersections where the two intersecting objects do not lie in the same plane. Ray and triangle intersection computation is perhaps the most frequent nontrivial operation in computer graphics rendering using ray tracing. Because of its importance, there are several published algorithms for this problem (see: [Badouel, 1990], [Moller & Trumbore, 1997], [O'Rourke, 1998], [Moller & Haines, 1999]). We present an improvement of these algorithms for ray (or segment) and triangle intersection. We also give algorithms for triangle-plane and triangle-triangle intersection.
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www.ietf.org
Saved by uncleflo on January 23rd, 2015.
We provide examples of C code for aspects of RTP sender and receiver algorithms. There may be other implementation methods that are faster in particular operating environments or have other advantages. These implementation notes are for informational purposes only and are meant to clarify the RTP specification. The following definitions are used for all examples; for clarity and brevity, the structure definitions are only valid for 32-bit big-endian (most significant octet first) architectures. Bit fields are assumed to be packed tightly in big-endian bit order, with no additional padding. Modifications would be required to construct a portable implementation.
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treehouse.com
Saved by uncleflo on December 7th, 2014.
When you purchase a Treehouse Software solution, a mature and proven software package and comprehensive documentation are only part of the contents. Also included is the know-how of a company that's been serving enterprises worldwide with industry-leading software products and outstanding technical support for more than 30 years. Treehouse has solutions and people with the expertise to make your project a success, and a track record to prove it.
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