Recent content on Mamadou Babaei
Unreal Engine 5.7 Android Packaging & APK Build Tutorial | Meta Quest & HTC VIVE Standalone Let’s cut the noise. You want quick, clean, and painless Unreal Engine APK builds and packaging? You’re in the right place. A while back, I released two videos: one on deploying Unreal Engine projects to Android and Meta Quest , and another on enabling proper hand-tracking using the Meta XR…
Optimizing Unreal Engine VR Projects for Higher Framerates (Meta Quest, HTC VIVE, FFR, ETFR, NVIDIA DLSS, AMD FSR, and Intel XeSS Tips Included!) Ever felt like your VR project is running so slow it could be a snail’s day job? 🐌 Or maybe your framerate is auditioning for a role in The Matrix—dodging bullets, but also every performance standard? 😅 Well, today, we’re fixing that! I’ll…
Building Unreal Engine 5.6 from the GitHub Source Code With Android Support Alright, I’m back with another video. If you caught the last one on building Unreal Engine 5.6 from source on Windows , you already know the drill. As promised—this is the GNU/Linux edition. We’re doing it the Linux way this time: clean, efficient, and just a bit different. Let’s dive in. UPDATE [2025/07/04] : The original…
Rust Devs Think We’re Hopeless; Let’s Prove Them Wrong (with C Memory Leaks)! When Rust developers think of us C++ folks, they picture a cursed bloodline — generational trauma passed down from malloc to free . To them, every line of C++ we write is like playing Russian Roulette — except all six chambers are loaded with undefined behavior. They look at us like we’re hopeless. Like we’re one…
Building Unreal Engine 5.6 from the GitHub Source Code Alright… I’m back. Yes, I know—I vanished for a while. But just like the upcoming Unreal Engine 5.6 release, I’ve been quietly cooking in the shadows. And now… we’re both making a comeback. Today’s tutorial is all about how to build Unreal Engine 5.6 from source—on Windows. That’s right, 5.6 isn’t officially out yet, but we’re not…
Unreal Engine OpenXR Hand-Tracking on Android with Meta XR (Quest 3S/Pro/3/2) and HTC VIVE OpenXR (Focus Vision/XR Elite/Focus 3) Plugins Hey everyone! Welcome back to the channel! In the last tutorial, we tackled deploying Unreal Engine projects to Android and Meta Quest in standalone mode—because who doesn’t love the thrill of watching their code actually work on a headset? But if you caught…
Deploy Unreal Engine Projects to Android and Meta Quest 3S/3/Pro/2 in Standalone Mode All right… so… you might be wondering—where have I been? Did I fall into a virtual void or some digital black hole? Did I get sucked into a never-ending loading screen? Did Unreal Engine finally crash me for good? Well, almost. But I’m back! Back from the digital abyss. And let me tell you, I was this close to…
Procedural Virtual Hand Mesh Animation Using OpenXR Hand-Tracking in Unreal Engine Building on the Introduction to Virtual Reality, OpenXR Hand-Tracking, and Gesture Recognition in Unreal Engine tutorial, this slightly more advanced tutorial will dive deeper into the following topics: Transitioning seamlessly between motion controller and hand-tracking modes in Unreal Engine. Adding custom…
WebRTC IP Leak Demonstration using Rust and JavaScript Deep in the vast jungle of the internet, an elusive predator lies in wait: the WebRTC IP leak . This invisible hunter slithers through the dense digital undergrowth, silent and unseen, ready to strike its next target. The IP addresses of its unsuspecting victims are exposed in an instant. But its danger isn’t merely technical; if…
Introduction to Virtual Reality, OpenXR Hand-Tracking, and Gesture Recognition in Unreal Engine Here’s a lesser-known fact about me. Once upon a time, when it was just me and the dinosaurs… Okay, maybe not that far back, but long before VR headsets, the Metaverse, and the social media craze, I used to teach people things for 8 years! I loved it so much that, honestly, I could talk for…
I recently purchased a second-hand HP Proliant ML350p Gen8 in order to be used as a home server and to my disappointment realized I won’t be able to disable the hardware RAID that comes with this model, at least at first glance. Well, there is a way to do that, which is supported by HP themselves. And, this is how to do it the easy way! But, before we proceed any further, you might ask why…
UPDATE [2021/11/08] : For whitelisting macOS, one could simply add Mac to PlatformAllowList inside the .uplugin file. e.g. : Whitelisting Linux inside ModelingToolsEditorMode.uplugin 'Modules' : [ { 'Name' : 'ModelingToolsEditorMode' , 'Type' : 'Editor' , 'LoadingPhase' : 'Default' , 'PlatformAllowList' : [ 'Win64' , 'Linux' , 'Mac' ] } ] , I’ve been trying to enable and make use of…
Host Unreal Engine 4 projects on Microsoft Azure DevOPS with unlimited cost free Git LFS quota UPDATE 1 [2021/07/25] : It seems that Git LFS is able to resume your pushes after a network failure. At least it’s like that on Microsoft Azure DevOPS. So, it should be totally redundant to divide huge commits into smaller ones. How have I noticed this? Today, I pushed a huge single commit (around…
Well, anyone who has ever developed a C++ game or application with Gregorian to Jalali date conversion (or, vice versa) requirement is well aware of the hurdles of doing such a task. I, for one, have been maintaining my own cross-platform C++ library for almost two decades now, with occasional bugs coming up from time to time. Recently, I have been playing with boost::locale (developed by Artyom…
A few months back due to various changes in how Funtoo is being managed, I migrated back from Funtoo to Gentoo after almost a decade. After some time I realized my laptop randomly gets stuck on a blank screen and freezes just right before my login manager ( SDDM ) starts. I noticed the hard-disk LED is blinking and the system is actually not freezed and probably is working and stuck on something.…
For those who don’t know, I maintain various official FreeBSD ports and for almost 18 months my submitted updates to www/wt has been stuck due to lack of a review. Hopefully, tonight it has been committed to the official FreeBSD Ports tree and has been divided into two ports: www/wt for following the 4.x releases www/wt3 for following the 3.x releases Although Wt Webtoolkit 4.x is a…
UPDATE 1 [2019/05/11] : Thanks to @mirrorbox ’s suggestion, I refactored the script to use service status instead of ps aux | grep which makes the script even more simple. As a result, the syntax has changed. Since I keep the article untouched, for the updated code visit either the GitHub or GitLab repositories. The new syntax is as follows: # Syntax $ /path/to/daemon-keeper.sh Correct…
i3wm setup with amazing gruvbox color scheme and a wallpaper from Reddit Update [2019/05/08] : Many people have been asking for the wallpaper in the above screenshot. It is from System Failure II, oil on canvas, 31x43” on r/Art . Well, I am really fascinated by Reddit art and genuine creative ideas such as Scrolller which was made possible thanks to gazillions of art pieces scattered throughout…
HackYourFuture First Game Development Workshop Report OK! Today, HackYourFuture held their first-ever gamedev workshop titled “Introduction to Unreal Engine 4 Game Development Using Blueprint” at their Amsterdam office, which I’ve been given the opportunity to present to their alumni on HackYourFuture’s behalf. Since I’m still very excited and fascinated by the…
Call of Duty 4: Modern Warfare Well, I haven’t played a multiplayer game in ages until recently, when my cool boss announced regular playtimes for all the employees in our company as a group activity in order to put the fun back into work. Since I’m a die-hard COD4 fan and I used to play Promod LIVE heavily with colleagues and friends, I proposed Call of Duty 4: Promod LIVE 220 which…
Hexo was so perfect and fast that I thought I will live with it happily ever after forever. Shortly, after I migrated this blog from Octopress 2.x to Hexo , I came across Hugo static generator with support for blogging. The idea of having a blazingly fast static generator written in a compiled native language seemed intriguing to me. I tried to migrate my blog to Hugo soon after multiple times…
Update 1 [2016/09/30]: A section has been added to the end of the article for dealing with major FreeBSD upgrades. Update 2 [2016/09/30]: A section has been added to the end of the article for upgrading current installation of Discourse to newer versions. Update 3 [2016/09/30]: A section has been added to the end of the article for installing Discourse under Ruby version managers which is required…
Figure 1. Android Robot Well, I started my Android development on a Samsung I9100 Galaxy S II . I never had any trouble getting ADB to work on Microsoft Windows since I had the drivers from Samsung which was already installed due to my previous Cyanogenmod installation process. Afterwards, I received a Nexus 7 and a bit latter a Nexus 5 which became my primary development device of choice. Google…
Picture A: Gray (black and white) post-processing effect in Cocos2d-x Update [2020/10/23]: Since I wrote this tutorial many things has changed in Cocos2d-x and I haven’t been using it in years as I switched to Unreal Engine 4. According to this GitHub issue opened by my blog readers, in order for this code to work there has to be some modifications to the code which is provided on that issue…
Packt $5 Campaign - Packt Publishing From the 17th December 2015 into the New Year, Packt Publishing is inviting the tech world to explore its extensive library of eBooks and Video courses for one amazing price. Every single eBook and Video course Packt has ever created will be available on packtpub.com for just $5!
Join Packt and Prepare for Tech in 2016 - Take Packt’s Year in Review survey and get any eBook or video for just $5! At a time of rapid development and innovation, tech skills have never been more valuable. The right skills and cutting-edge knowledge can bring huge rewards. Over the summer, Packt Publishing carried out a survey of more than 20,000 people from across the world of tech , to…
Be Skilled & Ready with Packt’s revamped learning library – over 3,000 titles for a whole year now just $100! With new features and our latest books and videos just for you, there’s no reason to stay behind when it comes to IT This week, Packt Publishing has reduced the price of its PacktLib subscription service as it rolled out dozens of new features and improvements to give you the best…
There once was a time when I did the following inside my home directory: $ wget 'some-url' -O 'output-file.mp4' I clearly remember copying the output file name from a web page. Unfortunately, the copied text has a new line at the beginning of it and I didn’t notice that. That’s because the newline or carriage return characters are control characters and have no visual representation.…
A Linux kernel panic on tram 7B at its hometown, Helsinki (Click to enlarge) Undeniably, flaming has been around since the dawn of the Internet age. And even worse, it has been on the rise ever since. Gazillions of flame wars on websites such as Slashdot or Reddit surely is enough proof, the greatest of which is the perennial debates between users of competing operating systems. No doubt I’m…
Update 1 [2016/09/23]: OmniBackup now officially supports GNU/Linux. More info … Update 2 [2016/09/23]: Official documentation moved to GitHub which means this guide won’t be maintained anymore and maybe out of date or inaccurate. A week ago was System Administrator Appreciation Day . It is celebrated on the last Friday in July and it has been celebrated since July 28, 2000 . But,…
There is an old saying that the only safe computer is one that’s disconnected from the network, turned off, and locked in an underground bunker—and even then you can’t be sure! Since most of us can’t afford to keep our servers in an underground bunker, the least little thing that could have been done in order to keep their threat exposure at rock-bottom is protecting them by…
What does your industry look like? I can only say wow! Packt Publishing has just released their comprehensive IT industry salary reports, with data from over 20,000 developers around the globe . If you really want to identify or get an idea of the upcoming trends over the next few years, you should consider this comprehensive analysis in order to get the most out of your career and skills. This…
Modern web development is filled with an abundance of tools and technologies, but it’s difficult to know where to begin. You want both efficiency of your work and high performance of your site; Gulp brings that right to your doorstep. With its rising popularity, you don’t want to leave Gulp out of your toolbox.
Until not so long ago, to add my own cron jobs I always had the habit of modifying /etc/crontab on my FreeBSD system which turned out to be wrong . In simple words, there are two types of crontab files: System crontab which should not be altered due to the troubles it cause during FreeBSD upgrades User crontab which has one less column than the system crontab file
From 30th April, 2015 Packt Publishing has thrown open the virtual doors of its new Free Learning Library and offering its customers a daily chance to grab a fresh free eBook from its website. The publisher is encouraging people to learn new skills and try out new technologies and so every day it will be offering a different eBook from its huge list of titles free for anyone to download. Packt…
Well, I was living a happy life with Octopress 2.x despite the fact that I didn’t do much blogging in the past couple of years. Moreover, in my estimation Octopress still should be considered as one of the greatest blogging platforms among its peers and I really got nothing against it. But, I see a few shortcomings which made me looking for alternatives (and some of these still affects the…
Digital Restrictions Management (DRM) harms almost everyone, but most people have never heard of it. Today is one of our best opportunities to change that. There are people around the world coming together to say that we will not tolerate the remote deletions, unethical surveillance, and invasive restrictions of DRM. In fact, with events in at least nine countries and huge online participation,…
Almost three weeks ago I received a review request from one of the Packt Publishing staffs to review Application Development with Qt Creator, 2nd Edition written by Ray Rischpater which has been recently published by Packt Publishing. Since I’ve been developing cross platform Qt (cute, often mispronounced as Q-T cue-tee) applications from Qt 4 era back in 2008 – when Qt Creator was not…
As a Nexus 7 tablet user I’ve been struggling with my Nexus 7 WiFi from the moment that I’ve owned it. It was originally released with Android 4.2.0 installed. Nonetheless, Android 4.2.1 and 4.2.2 didn’t get me anywhere with the WiFi issue. In fact, you may have suffered from this issue, and are already familiar with. After inserting a SIM-Card into the device, Android asks to…
[Update] : Thanks to digitaltoast for informing me about the missing real_ip_header CF-Connecting-IP; from the script and providing a patch for it. OK, I suppose you know what CloudFlare is, and are familiar with Nginx configuration process, before we proceed any further. Just in case you don’t know, CloudFlare offers free and commercial, cloud-based services to help secure and accelerate…
If you’ve ever used a GNU Gentoo or Funtoo Linux variant, or a live version of any of them, you may have noticed their eye-catching colorful terminal or console. Whether you’re on a virtual console or one of KDE , GNOME , XFCE , LXDE terminal apps. A Colorful Xfce4 Terminal on FreeBSD (Bash) The default Xfce4 Terminal on FreeBSD (sh csh) When I’ve migrated from Funtoo to FreeBSD…
GNU nano is my favorite text editor while I’m on console. Although, it doesn’t offer syntax highlighting by default, it comes with a decent set of syntax highlighting files. Usually, these files are exist in /usr/local/share/nano or /usr/share/nano , depending on your distro’s preference. You can enable syntax highlighting for your prefered language(s) by including related…
GNU nano is my favorite text editor while I’m on console. However, there’s one thing about nano which annoys me: automatic text wrapping! Hopefully, there are two simple ways to overcome this. By using either -w command-line argument, or set nowrap configuration command within the file ~/.nanorc . 1. The temporary solution by using -w command-line argument, which should be used each…
Previously I’ve described the process of building Crypto++ on both FreeBSD and Windows using the GCC, MinGW and VC++ compilers . Now, we want to develop our own cross-platform cryptographic wrapper library around Crypto++. I’ve already uploaded the full source code to GitHub . You can find the link to the code on GitHub at the end of this article. Before you proceed, you have to build…
Crypto++ is an awesome free and open source C++ class library of cryptographic algorithms and schemes which fully supports 32-bit and 64-bit architectures for many major operating systems, including FreeBSD, Linux, Solaris, Windows, Mac OS X and iOS. Currently, Crypto++ officially supports the following compilers: MSVC 6.0 - 2010 GCC 3.3 - 4.5 C++Builder 2010 Intel C++ Compiler 9 - 11.1 Sun Studio…
Most of the time I see some C++ programmers who check if a pointer is NULL before deleting it. if (ptr != NULL) { delete ptr; ptr = NULL; } Well, according to C++03 [ISO/IEC IS 14882:2003] §5.3.5/2 which explicitly states: …if the value of the operand of delete is the null pointer the operation has no effect. C Standard Core Language Defect Reports and Accepted Issues, Revision 82 delete…
As you’ve noticed there’s still no official support for Microsoft Visual Studio 2012 in recent Pixel Mine nFringe releases. While ago I came across an awesome forum post at Epic Games Forums which describs a simple process of getting nFringe to work with VS2012. Since then I’ve used it in my day to day development tasks and I had no difficulties at all using it. And damn,…
Well, I’ve failed to install .NET Framework 2.0/3.5 in Windows 8 using Program and Features in Control Panel, which I need for an older project I’ve done long ago. But I came across an easy solution which did the trick. In Windows Command Prompt (cmd.exe) or Run dialog, enter the following command and hit Enter: > Dism /online /enable-feature /featurename:NetFx3 /All…
My first exposure to videogames occurred during a visit to my aunt’s house in the late 80’s. I was riveted at the sight of motioning icons on the TV screen. Later, I learned the videogame was called River Raid, and the console 8-bit Atari 2600. When my parents bought me my first gaming console the next summer, I found my lifelong passion: making games. Although the game development industry in my…