Robert St. (@rob_robby) header
Robert St. (@rob_robby) profile picture
Germany
Joined June 2007
Photo by Robert St. (@rob_robby)Photo by Robert St. (@rob_robby)Photo by Robert St. (@rob_robby)Photo by Robert St. (@rob_robby)Photo by Robert St. (@rob_robby)Photo by Robert St. (@rob_robby)Photo by Robert St. (@rob_robby)Photo by Robert St. (@rob_robby)
Robert St. retweeted
The Unreal Engine 5.9 MegaJam Preview is here! It’s the first Unreal Engine release built primarily with agentic workflows and opens up a few new Experimental features: check out Unreal MCP’s expanded toolsets, work with AI coding agents directly in Editor, explore AI-assisted content creation, and run your projects in a browser. This isn’t your typical Unreal Engine Preview, but it’s ready just in time for the Epic MegaJam. Invite your agents and start experimenting: epic.gm/ue-5-9-preview
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Robert St. retweeted
Built a physical simulation of a record player with WebGL2 and Web Audio. It's *shockingly* accurate: vinyl-gl.vercel.app. Instead of playing a song, it works by converting it into the physical shape of a groove. Then a simulated stylus rides those walls 384,000 times a second, and you hear the voltage that motion would induce in a cartridge. So the crackle, the pops, the wow/flutter, the dull inner grooves are natural byproducts of the simulation. You can also "DJ" the record. (The converted songs are in the public domain or CC-licensed. Code is linked for you to remix and re-deploy.)
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Would you be interested in Petafab if you could create your own maps? I could create a level editor + import (documented file format), if you want to create levels with external AI tools or Blender. Level is fully destructible and there’s fluid volumes, weapons, spawn gates…
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Robert St. retweeted
Can y'all help us hit 50k stars on Github today? So close!
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Robert St. retweeted
This Sunday at 11AM Pacific I'll be doing another skeletal animation programming stream on Maria Beketova's channel. We'll be starting this one with an explanation of the quaternion trick I pulled at the end of last stream :) youtube.com/live/FLyWOSeETkE twitch.tv/sudolovemebabyy
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PETAFAB just released on Steam at $9.99: store.steampowered.com/app/5… PC, Mac and Steam Deck/Machine. 90Hz on Steam Deck OLED. Up to 540Hz + 8000Hz late-latch mouse on high end PC for ultra-low latency. Let's see if you can beat my high scores :D
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My calendar kindly reminds me: ”Launch” Maybe I thought that I would forget the launch day :)
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If you want to beta-test Petafab iOS/iPad RC build, please send me a PM. Controls have been improved, there's gyro support, leaderboards, achievements, phone specific balancing and all sounds/music. I plan to send it to Apple tomorrow. Their submit queue is also 2 weeks now :(
iPhone 15 Pro running PETAFAB at locked 60Hz and stays cool. Metal 4 (GPU ptrs + 100% bindless) + mesh shaders + tile shader lighting + compute SDF ray-tracing (primary + soft shadows + AO rays). Compute fluid sim. NEON optimized swarm physics, ragdolls, pathfinding.
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Vulkan BDA bug report for @intel. Open source repro case: github.com/sebbbi/NoGraphics… Linux drivers don't have this bug. Windows drivers do.
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RC is finally out. No issues found in my own internal testing (Windows PC, MacBook Neo, Steam Deck, ROG Ally). Added 60+ beta-tester names in the credits. Thanks for all the help! Super valuable feedback!
Final day of the project. Computer deploying RC builds. I am at local store. Going to be a long day…
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Robert St. retweeted
Cheap cloud scattering approximation using tiny neural networks that I was working on a while back for our engine. iPhone 12, 1080p @60+ fps
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Epic's Unreal Fest Tokyo presentation gives a first look at the planned transition from UE5 to UE6. Epic plans to move away from UE5’s Actor system, Blueprints and C++ Gameplay Framework. >AI-assisted migration. >Removing the old gameplay framework. >Moving existing projects to the new systems. Early Access is targeted for 2027.
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Do you want to beta test ultra-low latency FPS mouse aim? PM me if you have 240Hz+ monitor and 2000Hz+ mouse. I will give you a Steam key. Game download is only 400MB.
Mouse late latch on my 1000Hz mouse reduces input lag by 6.4ms on my 240Hz 4K monitor. Feels AWESOME! Instant response. Background thread writes mouse info (up to 2000Hz) directly to GPU memory. No submit/queue delay. Needs persistently mapped GPU pointers + GPU-driven renderer.
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New iPhone/iPad TestFlight build coming today. If you want to beta-test touch controls or gyro, please PM me. I need feedback to make mobile controls great.
iPhone 15 Pro running PETAFAB at locked 60Hz and stays cool. Metal 4 (GPU ptrs + 100% bindless) + mesh shaders + tile shader lighting + compute SDF ray-tracing (primary + soft shadows + AO rays). Compute fluid sim. NEON optimized swarm physics, ragdolls, pathfinding.
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We’ve updated the Unreal Engine EULA so devs can now choose to train AI models on their UE and MetaHuman projects, and benefit from AI models that understand their code and content. This change does not give Epic any rights to your content or code. Check out the blog for the details: epic.gm/ue-eula-updates
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Replying to @ThreatInteract
@ThreatInteract wondering if you want to benchmark PETAFAB? Would be a nice comparison point to big engines. Also showcasing that temporal pipeline is not mandatory. 540Hz native 1440p / 240Hz native 4K. No upscaling or frame gen. Send me a PM if you want a beta key.
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Robert St. retweeted
ChatGPT is unifying Chat and Work I wonder how that changes usage limits
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To be perfectly transparent, not all features are exposed in the Demo's UI. The full version includes far more settings, like Sea Currents, swells, wind direction, etc. I intentionally kept it simple to not overwhelm anyone. Link to playable demo: easywaterscape.williamfauche…
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