Joachim malan

Lead Technical Artist at Jagex

[RED_SIM @RED_SIM]

A new clustered froxel-based lighting prototype for Light Volumes 3.0.0!
It uses froxels to precompute visible light IDs, so shader don't have to iterate through every light. This scene has 128 active lights and performs around 60 FPS on Android. ~13 FPS with no clustering.

[The Farmer's Dog @FamersDog]

What a fantastic video from
“Farms and Furious”
The cross over we didn’t know we needed ❤️ 😂

[slash1s @slash1sol]

THE ENGINE DIRECTOR BEHIND AAA CONSOLE GAMES WALKED ON STAGE AT A C++ CONFERENCE AND TOLD A ROOM OF EXPERTS THAT THE CLEAN, OBJECT ORIENTED CODE THEY ARE PROUD OF IS A LIE AND IT QUIETLY THROWS AWAY 90% OF THE MACHINE THEY PAID FOR

85 minutes from Mike Acton -- engine director at Insomniac Games, where wasting cycles is not an abstract debate, it is the difference between a game that ships and one that dies.

-> His first principle is blunt: the only purpose of any program is to transform data. Not to model the world in pretty classes. Move data, fast.

06:33 -- The lie he calls out: "Software is the platform". No. The hardware is the platform. Ignore it and you cannot even reason about the cost of your own code.

Most devs never look at what the CPU actually does. They stack abstractions until the machine spends its life waiting on memory it should never have touched.

49:38 -- He prints a value, zips it, and measures the waste directly. A brutal little trick that exposes how much of your data is pure noise.

And this is the AI era's blind spot too. Agents generate more abstract code faster, on hardware nobody profiles, while the GPU bill quietly explodes.

You thought clean code was the goal. This is the man shipping real engines saying the machine is the goal, and clean code is often how you lose it.

Bookmark it & you'll never look at your own abstractions the same ↓

[しゅーや / Syuya Mukai @syu_ya23]

バズっているこちらの反射についての動画が、興味深かったので、概要とUE5での表現について…

この動画のざっくりとした内容としては
・2008年のアイアンマンを見て、鋭い反射だけでなく、うっすらとした「にじみ」のような広がり(reflection tail-off)があることに気付く
・ILMのシェーダーでは、2つのスペキュラーローブを持ち、それらを混ぜ合わせられた
・reflection tail-offは、2つのスペキュラーローブ(鋭い反射と、もっと広がった柔らかい反射)が重なっているという見解
・実際の金属表面にある微細な凹凸・傷（複数スケールの粗さ）がこの現象を引き起こしている
・CG上で、ラフネスに微細なノイズを入れたり、GGX、複数レイヤーなどで再現を検証する
というもの。

UE5のSubstrateでは、まさに"2つのスペキュラーローブ"を表現できるSecond Roughnessというインプットがある
Second Roughnessで、通常のRoughnessとは別に、スペキュラ ローブのラフネスを制御できる。
Second Roughness Weightで"Roughness"と"Second Roughness"の混合比率を決めるのだが、少しわかりづらい
そこで"Substrate Haziness-To-Secondary-Roughness"ノードを使うと、直感的な"Haziness"から、Second RoughnessとSecond Roughness Weightの両方を自動で算出してくれる

こういうのとても好き。
なによりも動画の投稿者のリサーチ力と研究心がすごい…

[DreamFeed @DreamFeedGames]

WIP on my Annihilation inspired shimmer shader and material in Unreal.

[Twonks @twonkscomics]

Great job 👏

[Mustafa @oprydai]

i often think about this…

[Ryan Els @RyanEls4]

We can always refactor it later 😏

[R.S. Russo @R_S_Russo]

🤭

[DaVinci @BiancoDavinci]

sad story

[Polemic Paine @PolemicTMM]

Rather useful and addictive web site.

Interactive live map of the UK rail network showing where all currently running trains are. Click on them full routing and live scheduling.

https://t.co/TRFPHdraEH

[Matt Wulff @makeitmatto]

A top 5 lecture of 2026

[Saint Nomad @Saint_n0mad]

a valuable lesson was learned that day

[lyn !! ★ @understndinglyn]

fucking what

[Bruno Santos🇵🇹 @brunoeducsant]

Great visual explanation of 3D Gaussian Splatting concept .
@MattNiessner