Peter McNeill

Ever curious software engineer, now @Roblox. Was engine director at King, made a bunch of stuff at Halfbrick. Probably made games you played as a kid?

[Peter McNeill @MrChickenRocket]

My massive article on Roblox Optimization is out! How massive? It has chapters!

It comes with an uncopylocked game called Cardboard Box Simulator, which has been optimized to run at 60fps on low spec phones at full quality. It also contains a whole bag full of neat tricks and approaches for making your own builds run well.

https://t.co/MFHsp4MUlj

#Roblox #robloxdev

[Peter McNeill @MrChickenRocket]

Fun little effect! #robloxdev

[Peter McNeill @MrChickenRocket]

@knightoftism @cordnogkid @PurpleColonelSP It’s okay to not like things but I think you’re on your own arguing tomb raider was bigger than ocarina of time.

[Peter McNeill @MrChickenRocket]

@RayTrailers https://t.co/7Tqt4rqzcx

[Peter McNeill @MrChickenRocket]

So GRI had a gameplay problem: Some characters have wallhacks as a skill. This made trees you could shoot through way too effective. The solution: make the trees solid. This had its own challenges, but now we have fuzzy trees! #RobloxDev

[Peter McNeill @MrChickenRocket]

@Khaelises Yup! The trees were procedurally generated (SDF blobs) and the cards are bands that run right the way around the mesh in a grid shape with a carefully made tiling texture. No normal manipulation - just transparency to get rid of the SSAO.

[Peter McNeill @MrChickenRocket]

@FiniSolberg The fuzz is passthrough

[Peter McNeill @MrChickenRocket]

@TrenchWarsRBX Yeah the whole game is set up to be fully destructible now, so there’s nowhere to hide but there’s no wall bangs either. If you can shoot someone they can see you and shoot you too.

[Peter McNeill @MrChickenRocket]

@endominvs @smartyrbx Glad its sorted!

[Peter McNeill @MrChickenRocket]

@BloodyWing4 IK, yes.

[Peter McNeill @MrChickenRocket]

More robots. #RobloxDev

[Peter McNeill @MrChickenRocket]

@bytejon Maybe not to the same simulated degree, but with prebuilt destruction I think you could get close.

[Peter McNeill @MrChickenRocket]

Good ol' building destruction in Roblox. One of my coworkers said my buildings looked like the toolbox default happy house and I gotta say I took that kinda personally. #RobloxDev

[Peter McNeill @MrChickenRocket]

@ReverseRBLX Just bones with spheres on it that then gets meshed.

[Peter McNeill @MrChickenRocket]

I have a "spore creature creator" going in Roblox! Any leg count and body shape works. And there is zero chance I'm going let any of you degenerates play with it because I know what you'll make... #robloxdev

[Peter McNeill @MrChickenRocket]

@RaySwayCX Nice! Good stuff!

[Peter McNeill @MrChickenRocket]

@SharkieCoding Yeah! There’s a bunch of things going on but it’s just modular bits

[Peter McNeill @MrChickenRocket]

@followIndoPr0 @mwupfront Or Chermside, or.. Indro? Really?!

[Peter McNeill @MrChickenRocket]

@shostekofsky It seems largely unbothered by death.

[BitwiseAndrea @BitwiseAndrea]

🌈 Color3 just got three new methods: GetContrastingColor, GetContrastRatio, and GetLuminance 💡

https://t.co/fz9XOGpsZ7

See how good you are at guessing color contrast in the demo game and be humbled by how bad you are at guessing luminance!

https://t.co/eml7vM0b6m

[BitwiseAndrea @BitwiseAndrea]

I've been messing around a lot with EditableImages and CaptureService a lot lately and wrote up a cute tutorial on how you can use them together to create cool in-game effects!

https://t.co/BLfhqCt5vf

#roblox #robloxdev

[Peter McNeill @MrChickenRocket]

Welp. Thats it - this is what alien intelligence looks like, folks. Completely orthagonal to something humans are equipped to do or even really comprehend.

[Rikiya Takehi @rikiyatakehi]

We asked GPT-6 Astra to edit Qwen3.5-0.8B weights to improve math.
It directly changed only 0.016% of weights, fixing 0.8B's reasoning loops & improving math up to 6x and even instruction following 3x, without gradients or training.

We call this Weight-Space Programming: frontier LLMs can now natively read/write neural network weights! 🧵
Blog: https://t.co/bOWCcFhCVq