Matthew Roumeliotis

YES!! There's a huge smile on my face right now. 😁 Nerd details: This is recursive window rendering of a tree of three windows directly to the screen, the mirrors, and an LCD panel I temporarily mounted to the hood of the car. The two text displays (same text on both for now, but it can be different) and g-meter are three separate windows with their own render textures. Text/points/lines/quads can be rendered directly to each one separately (happens largely in parallel on the GPU) first. Then it recursively renders the child onto its parent as a quad, then that renders onto its parent, and so on, for the entire tree. In the end, the three windows are really just one render texture due to that copy process, so drawing it to 3D objects (mirror and LCD panel on the hood of the car in this case) is just a matter of keeping track of which texture index is for the window I want to render. I can just as easily set one of the children to draw on the panel/mirror instead of the whole combined window, say just the g-meter or its parent. Note also that the rendering in the mirror is mirrored left/right like it should be. This is actually super easy: The texture coordinates of the 3D models are used in the end, and the mirror has the left/rights flipped so it renders as a mirror image. I look forward to eventually rendering the scene into the rear view mirror instead of the GUI, but at least I know the stage is set for that in the future. I'm stoked. This made me really happy. 🤣 And now for millions of hashtags: #simulation #simulators #racecar #videogames #videogame #videogameindustry #videogaming #vehicledynamics #gameplay #gamedev #gamedevelopment #games #gamedeveloper #directX12 #D3D12

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Back with another update to my video game archive system now running in React. Aside from updating the code to work within the React application, visually it remains the same. Now there are over 300 games in the database. #DevAccelerator #React #MySQL #VideoGames

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What is next for #NVIDIA & #AI? Well, #NIMS are pretty cool.... messages=[{"role":"system","content":"You are a helpful assistant."},{"role":"user","content":"write a rap song about nvidia nims"}], Yo, listen up, I got a story to tell 'Bout a chip, that's doing well NVIDIA NIM, the name, the fame A neural network processor, that's changing the game :) https://lnkd.in/efmD984i

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Multiplayer games are hard to make, but multiplayer games with user generated content are even harder: Once we give players the chance to make content that others can see, we need to be careful. Because remember: 1. Racism is a thing 2. Cheaters do exist 3. And the internet is full of trolls Do you want to give players freedom to express themselves in your game? Then you have to: 1. Moderate the content player made ("Time To Penis" is a thing, google it) 2. Make it fit the game's world so it doesn't look out of place 3. Ensure it is balanced It took years for Ariokan, the online card game where players can create balanced cards at any time, to get this right, using a mix of humans and automation for moderation and balancing. (No genitals or "I win" cards so far) It's doable, but not easy: especially if you target a mass market and not just the circle of friends/colleagues that test your game. >>>>>>>>>>>>>>>>>>>>>> P.S: I post about Multiplayer Game Development 5x/week. Follow me for more insights, or book a call to supercharge your multiplayer game!🔔 #JustDevIt #gamedevelopment #multiplayer #netcode #gamedev #ugc #usergeneratedcontent  

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I'm doing some live R&D in github for my next article. "How to create a first person shooter that scales to millions of players". https://lnkd.in/dNDs3t-4 So far R&D into player input processing with XDP indicate are that it's definitely possible to hit the 1M player mark with each player sending 1mbps of data from client -> server for inputs to a "player server". Each player server needs a 100G NIC and conservatively can process ~50k players each, so you need 20 player servers to hit 1M players at a cost of ~40c US per-player per-month so far. Blocked right now on what appears to be a ring buffer bug in XDP/BPF, so I'm going to move forward with researching other aspects of hyper scaling FPS netcode: 1. Simulating local player state forward in BPF hash maps, storing it back in the map post sim. Sending local player state back to clients on request in XDP. Should be relatively easy, given the same bandwidth amount back down to clients for player state as at is up for inputs. ~1mbps per-player @ 1200 bytes of state per-player. Just need to make sure the player simulation and BPF hash map accesses can keep up at 100HZ with 50k players. 2. Building snapshots containing other player state with the world divided into some geospatial areas. Most likely 10x10 grid for simplicity, eg. 100 "world servers". Estimating 1000 other players visible on average, gives 100*1000 bytes of player state at 100HZ. Expect this will be around 100mbps per-player. Yes, this part is definitely going to require 1G internet. You could bump to 10,000 other players visible for 1gpbs per-player, however I have concerns around line rate and packet loss amplification at this rate, even if you do have 10G internet. 3. Thinking about player simulation update code interaction with the world primitives. eg. raycasts, damage other player, find players in volume etc... it seems possible, but radically different to how game server netcode is written now for FPS. 4. A concept of a "world database" sort of like "Redis" for game servers enabling large game worlds much bigger than can be simulated or processed on a single machine is something that I keep coming back to. Player simulations must interact with other players and the game world somehow. If it all turns into asynchronous calls, like golang goroutines blocking on IO and then waking up to do work I can see how this can all come together. One goroutine per-player on the player server, async calling to this world database. Interested to hear your thoughts on this. What do you think?

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There was a saying in the game industry you will circle back and forth with the same group of people. People were terrified to speak up when treated badly. I've seen people saying we need to do better but when it came to them they were still doing the same thing over and over again. It's a false assumption, the United States boasts the most video game developers in the world currently, with 268,698 video game employees as of 2023 and revenue of approximately $54.9 billion USD. Canada and European nations also feature large numbers of game developers. Not counting the ones from the other countries. What should we do here? Knowing that we all have vast choices to move on, it's a big, big world and you always have choices. Please keep that in mind when fear dominates your thoughts. Try to advocate yourselves when need to. What does it have to do with work? We as human beings have only limited amount of energy and focus. The less we spent on combating uncertainty of our future, the more can be allocated to work on the games we deeply care about. I care deeply, and I can see you do too. Let's start by acknowledging it.

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I'm making a website to provide Linux support for Unreal Projects for free! See, I've been using Linux a lot recently and I've found that nearly everything I do (Gaming, Game Dev, C++ Programming) is much more performant and better on Linux. However, it's clear to me that many people/companies don't have the time (and possibly resources) to look into Linux support, so, I'm creating a website to allow people/companies to upload their projects and get them exported to Linux for free! Why? I believe that we should start making games accessible to everyone. In 2024, games should not be locked behind Windows or Proton (a Linux compatibility tool to play Windows games) and we should be doing more to provide games to everyone, no matter what you're on. Everyone should be able to enjoy games without having to fork out extra money for Windows. I'll be providing more information soon (working on some background stuff to ensure everything is pretty secure) so stay tuned! If you're interested, leave a comment! I'd be happy to answer questions about this and how it will work.

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💻 Version control can be a daunting topic for game developers, especially if you’re not from a technical background. But it doesn’t need to be that way. We recently launched a new guide and three new tutorials that cover best practices for version control and project organization, to help you and your team set up your Unity project smoothly and efficiently. Read more: https://lnkd.in/gCFvUTC2

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⚡ Diving Deeper into Quadratic Equations with C Programming! ✍️ I'm excited to share a recent coding project where I wrote a C program to solve quadratic equations of the form ax^2 + bx + c. 🔍 Why is this important?Understanding how to implement mathematical formulas in programming is fundamental for tackling more complex problems. This project deepened my comprehension of quadratic equations and reinforced my skills in C programming. 💡 Key Takeaways: Implementing the quadratic formula in C.Calculating the discriminant to determine the nature of the roots.Handling different scenarios based on the discriminant's value. I’m thrilled to continue my journey in programming and mathematics. Check out the full code on my GitHub here https://lnkd.in/dQ4BGF5d . Let's connect and share more coding insights and experiences! #Programming #CProgramming #Math #Learning #Coding #SoftwareDevelopment #Tech

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🎬 Today’s Game Dev Goals! 🎬 I’ll be diving into the intro scene setup, drafting some engaging dialogue, and scouting for a composer to create a unique soundtrack for the main menu, credits, and intro. This game is getting its own vibe, one note and one line at a time! If you know any talented composers, or have any tips on scene transitions, hit me up—I’m all ears! Stay tuned for more progress as the project comes to life. 🎮 👉 Excited? Drop a comment or recommendation! #GameDevJourney #IndieDev #IntroScene #GameMusic #GameDialogue #SoundtrackSearch #BehindTheScenes #GameDesign #IndieGame

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Most game pitches fail—but do you know why? 🤔 Brian Upton, an industry veteran with 20+ years of experience, shares the reasons in his talk at GDC 2015 "30 Things I Hate About Your Game Pitch." The presentation has more the 1.5 Million views on YouTube. 📈 Brian states that industry experts end up making these mistakes!😱 Want to make sure your pitch stands out for all the right reasons? Check out my presentation below, where I’ve summarized Brian’s invaluable insights into actionable tips. ⬇️ Watch the original talk here: https://shorturl.at/MIcYS #GameDesign #Gaming #GDC

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I'm having a late night agonizing over which features I feel are necessity to include in my app for tomorrow's hackathon deadline (All of them! I want them all!), but I stumbled on something during my break that I wanted to share. If you've got an interest in AI, NVIDIA just released a boatload of free courses. Since I have a toddler brain when it comes to AI, I'm looking forward to the Generative AI Explained course. What course gets your blood pumping?? #Developer #ArtificialIntelligence #AI #NVIDIA #CUDA #DeepLearning #BigData https://lnkd.in/gGY3ZX7r

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A nice #rust tip for using zip

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