Ari Arnbjörnsson's Avatar

Ari Arnbjörnsson

@flassari.bsky.social

Senior Software Engineer, Developer Relations at Epic Games. Former Lead Programmer on #Returnal for #PS5 @Housemarque. https://ari.games for my presentations!

1,597 Followers  |  133 Following  |  170 Posts  |  Joined: 22.10.2024  |  2.074

Latest posts by flassari.bsky.social on Bluesky

The Road to 60 fps in The Witcher 4 Unreal Engine 5 Tech Demo | Unreal Fest Orlando 2025
YouTube video by Unreal Engine The Road to 60 fps in The Witcher 4 Unreal Engine 5 Tech Demo | Unreal Fest Orlando 2025

We just published "The Road to 60 fps in The Witcher 4 UE5 Tech Demo", where you can see how we got 300+ moving characters and 100k+ fully modeled trees and scrubs running at 60fps on a base PS5.
www.youtube.com/watch?v=ji0H...

31.10.2025 13:54 — 👍 20    🔁 5    💬 0    📌 0

Haha, it was a small fix 😄

30.10.2025 13:09 — 👍 0    🔁 0    💬 0    📌 0
Lighting in UE5: Scaling for Quality & Performance | Unreal Fest Bali 2025
YouTube video by Unreal Engine Lighting in UE5: Scaling for Quality & Performance | Unreal Fest Bali 2025

A great talk by Alexis Argyriou from Unreal Fest Bali about performant lighting in UE on various hardware. #uetips
www.youtube.com/watch?v=Q1wh...

30.10.2025 13:05 — 👍 8    🔁 3    💬 0    📌 0
Getting started in the games industry by Ari Arnbjörnsson, Epic Games
YouTube video by W Love Games Conference Getting started in the games industry by Ari Arnbjörnsson, Epic Games

"Getting Started in the Games Industry" is my story of how I entered the game development industry, how I moved from mobile to console games, and how I got my job at Epic Games. With practical advice to the new generation of game makers entering the industry.

www.youtube.com/watch?v=Ai3Q...

22.10.2025 13:47 — 👍 6    🔁 1    💬 0    📌 0
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Making Epic Presentations | Talks and demos Learn tips and tricks that can help you level up your presentation game, from the technical developer relations team at Epic Games.

I had a training session for the speakers of Unreal Fest Orlando on how to speak better, drawing on my own experience fumbling on stage for years.

I've now finally made a proper EDC article + video of it so anyone can learn to become a better speaker!

dev.epicgames.com/community/le...

20.10.2025 15:10 — 👍 5    🔁 0    💬 0    📌 0
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Bring The Great Hitch Hunt to your Halloween party with this karaoke version of "Kill the Hitch!" 🏹

YouTube: youtu.be/T8xX7BsgURI
Download: epicgames.box.com/v/HitchHuntKaraoke

19.10.2025 19:55 — 👍 3    🔁 0    💬 0    📌 0
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W Love Games Conference 2025 - w_love_games on Twitch w_love_games went live on Twitch. Catch up on their Software and Game Development VOD now.

Thank you so much @natashaskult.bsky.social, for not only inviting me to tell my story, but for organizing this amazing, free, and accessible conference for the community 🙌

The recording is available here: www.twitch.tv/videos/25870...
Standalone video coming soon!

"Hi from Helsinki!"

14.10.2025 13:48 — 👍 1    🔁 1    💬 0    📌 0
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I'm so honored to kick off the @wlovegames.bsky.social conference as the keynote speaker ❤️

My talk, "Getting Started in the Games Industry," is a deeply personal story of how I got into the industry, and how that translates into practical lessons for the new generation of game makers.

14.10.2025 13:46 — 👍 5    🔁 0    💬 1    📌 0
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Unreal Fest Bali 2025 - YouTube

We just uploaded FORTY NINE presentation recordings from Unreal Fest Bali, and there's some top-notch content in there 🤩

Check them out here 👇

www.youtube.com/playlist?lis...

14.10.2025 11:17 — 👍 7    🔁 1    💬 0    📌 0

I haven't worked much with PCG so I unfortunately have no idea 😬

14.10.2025 09:42 — 👍 1    🔁 0    💬 0    📌 0
Taking the Pain Out of Engine Upgrades | Unreal Fest Orlando 2025
YouTube video by Unreal Engine Taking the Pain Out of Engine Upgrades | Unreal Fest Orlando 2025

We've been uploading a bunch of Unreal Fest talks to our Unreal Engine YouTube channel, such as this one from Tanglewood about taking the pain out of engine upgrades 👇

www.youtube.com/watch?v=vMEl...

14.10.2025 09:40 — 👍 16    🔁 2    💬 0    📌 0
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It was great to open for The Big Screen Gaming summit at Pocket Gamer Connects 🤘
"Hi from Helsinki!"

10.10.2025 10:52 — 👍 3    🔁 0    💬 0    📌 0
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A Tech Artist’s Playbook for Chaos Performance | Tutorial The purpose of this article is to highlight Chaos settings and asset-authoring choices that most impact physics performance.

We've just added an excellent article on optimizing Chaos in Unreal Engine, with lots of engine internals demystified 👀👇 #uetips

dev.epicgames.com/community/le...

01.10.2025 13:18 — 👍 12    🔁 2    💬 0    📌 0

We're actually mirroring the vast majority of them since we introduced it (we're not mirroring old tickets since they might contain sensitive information).
We're severely limiting the number of private tickets studios get.

29.09.2025 07:01 — 👍 2    🔁 0    💬 1    📌 0

Haha, luckily UDN posts are now mirrored publicly on the Epic Developer Community once resolved.
But you're right, that's a recent change, and it was exclusive to custom licensees (which mostly AAAs could afford) before.

29.09.2025 06:56 — 👍 2    🔁 0    💬 2    📌 0

Game devs in AAA: What are some misconceptions or fun facts about your industry?

I'll start: We don't have exclusive learning resources; we're watching the same YouTube presentations and online tutorials as everyone else.

29.09.2025 06:38 — 👍 17    🔁 1    💬 1    📌 0
NORSE: Oath of Blood - Gameplay Teaser | Tripwire Presents | Gamescom 2025
YouTube video by Tripwire Interactive NORSE: Oath of Blood - Gameplay Teaser | Tripwire Presents | Gamescom 2025

Check out the game!‬
youtube.com/watch?v=XtvW...

27.09.2025 19:08 — 👍 2    🔁 0    💬 0    📌 0
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Words cannot describe how happy I am with the standing-room only crowd @mattoztalay.bsky.social and I got for a PROFILING talk! 😲

Huge thanks to Arctic Hazard and Tripwire Interactive for letting us show profiling data from their upcoming game, NORSE: Oath of Blood 🙏

Video recording coming soon!

27.09.2025 18:58 — 👍 14    🔁 4    💬 2    📌 1
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Sometimes your heroes don't recognize you, and that's OK! Just be chill about it. Don't be like me when I met @timsweeneyepic.bsky.social. He's so famous! Uhm, do as I say, not as I do 😅

17.09.2025 15:08 — 👍 6    🔁 0    💬 0    📌 0
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One week until Unreal Fest Stockholm! I'm so excited because I heard that Jack Condon will be there 🤩
Hmm, I wonder if I can get him to guest-cameo on stage with me 🤔

15.09.2025 11:51 — 👍 4    🔁 0    💬 0    📌 0
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Episode 21 of AnsweRED Podcast with Ari Arnbjörnsson, Senior Software Engineer, Developer Relations at Epic Games talks connecting art and programming, how much courage it takes to ask questions, and more!

🎧 YouTube: cdpred.ly/AnsweREDPodc...
🎧 Spotify: cdpred.ly/AnsweREDpodc...

12.09.2025 12:42 — 👍 16    🔁 3    💬 0    📌 0
Maximizing Your Game's Performance in Unreal Engine | Unreal Fest 2022
YouTube video by Unreal Engine Maximizing Your Game's Performance in Unreal Engine | Unreal Fest 2022

Like this!
www.youtube.com/watch?v=GuIa...

11.09.2025 20:08 — 👍 7    🔁 0    💬 0    📌 0

so many devs treat perf this way, like a series of unquantifiable acts of god

11.09.2025 08:46 — 👍 88    🔁 6    💬 3    📌 0
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Profile.

11.09.2025 07:29 — 👍 795    🔁 156    💬 8    📌 16
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I couldn't even speak straight when I met the one, the only, the most FAMOUS @highlyspammable.bsky.social ! 🤩
I think he even glanced my way *swoon* ❤️

Unreal Fest Stockholm is SO CLOSE! I can't wait to meet all the cool people there.

10.09.2025 13:18 — 👍 7    🔁 0    💬 0    📌 0

Looking forward to seeing some of y’all!

08.09.2025 18:00 — 👍 4    🔁 1    💬 0    📌 0
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Late to an online meeting again? So embarrassing!
A 10-minute default heads-up is way too much time when I just need to join a Zoom.
Pro life hack: Go to the calendar settings and set the default notification time to 2 or even zero minutes. Never be late to an online meeting again!

08.09.2025 13:12 — 👍 1    🔁 0    💬 0    📌 0
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Whoa, I ran into @phyronnaz.bsky.social in Orlando! He made the Voxel Plugin for Unreal!
So many cool people to run into at Unreal Fest. And it's only two weeks now until the next one in Stockholm 😯

08.09.2025 11:22 — 👍 16    🔁 1    💬 0    📌 1
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If you see this dialog in your Unreal Engine project, click Install. At Epic Games, we now ensure that the preferred toolchains for the current engine version are listed in the Visual Studio solution. #uetips

04.09.2025 08:48 — 👍 13    🔁 4    💬 0    📌 0

Haha that's amazing!

03.09.2025 15:50 — 👍 0    🔁 0    💬 0    📌 0

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