Game developer, technical artist, engineer, VR/AR enthusiast, dreamer. I also make shaders for VRChat creators.https://bsky.app/profile/sim.redhttps://bsky.app/profile/sim.red/post/3mipkd65pnk2xDo you remember the caps game from the 2000s? I thought it'd be cool to recreate it in VRChat as a game world where you can collect them. What rules did you use? (I know they varied by country)05 Apr 2026 01:00 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mipkd65pnk2xhttps://bsky.app/profile/sim.red/post/3mifncxyegc2xLight Volumes v.3.0.0 release! - Realtime lighting, speculars and reflections support - Fully path-traced global illumination (Quest compatible) - Spherical gaussians support - Even more performant! Full feature list here on github: https://github.com/REDSIM/VRCLightVolumes/blob/vrclv-3.0/README.md01 Apr 2026 02:27 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mifncxyegc2xhttps://bsky.app/profile/sim.red/post/3mi257ju77k2lFinally, finished my Divergence Meter casing! Will also need to make a proper firmware for it with ability to control it over Bluetooth/Wi-Fi27 Mar 2026 12:39 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mi257ju77k2lhttps://bsky.app/profile/sim.red/post/3mhxah4wwrk2zWorking on something... NOT SOON (TM)26 Mar 2026 08:59 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mhxah4wwrk2zhttps://bsky.app/profile/sim.red/post/3mhcgqu22222rJust completed "Venture into the (Un)known" @vrchat.com event and discovered all the secret tapes!18 Mar 2026 02:26 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mhcgqu22222rhttps://bsky.app/profile/sim.red/post/3mh6mi3q7fk2yI think I have enough improvement ideas to make VRC Light Volumes 3.0. But more features means more if's and for's, which increases shader compilation time dramatically. Would be really nice to have global keywords specifically for Light Volumes, which would solve this issue.16 Mar 2026 13:58 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mh6mi3q7fk2yhttps://bsky.app/profile/sim.red/post/3mgjdbpr7bs2aGPU Infinite Grass v.1.2.0 released! - Surface Normal support (better shading) - Correct light attenuation (was broken before) - Unity Fog support - Editor GUI improved - Other fixes Already available on Booth and Patreon: redsim.booth.pm/items/7997362 https://patreon.com/posts/15093708608 Mar 2026 02:47 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mgjdbpr7bs2ahttps://bsky.app/profile/sim.red/post/3mfpkj6xpgd2dA very rough proof of concept of Baked Directional AO for VRC Light Volumes. I'm not sure if I want to integrate it into light volumes for real, but it could be a VERY performant solution to make super cheap realtime contact shadows.25 Feb 2026 20:47 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mfpkj6xpgd2dhttps://bsky.app/profile/sim.red/post/3mfmovd354c27GPU Infinite Grass v.1.1.0 released! - Unity Terrain support - Surface Mask shader improved - New surface setup workflow - You can now draw grass on ceilings too - Fixed several bugs where grass wasn't rendering in VRChat or Play Mode redsim.booth.pm/items/799736224 Feb 2026 17:28 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mfmovd354c27https://bsky.app/profile/sim.red/post/3mfjhsycrd226Testing GPU Infinite Grass with Unity Terrain... And I surprised how perfectly liminal it looks with just a default terrain texture!23 Feb 2026 10:43 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mfjhsycrd226https://bsky.app/profile/sim.red/post/3mffxdhqxxs2xWorking on the GPU Infinite Grass most requested feature: Unity Terrain support! Gonna be in the next update very soon, as well as lots of small bug fixes and improvements.22 Feb 2026 01:10 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mffxdhqxxs2xhttps://bsky.app/profile/sim.red/post/3mfc2xczzbc2lIt's only one hour left to get GPU Infinite Grass with 20% discount! redsim.booth.pm/items/7997362 https://redsim.booth.pm/items/799736220 Feb 2026 12:04 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mfc2xczzbc2lhttps://bsky.app/profile/sim.red/post/3mf7qoqnyck2lToday is the last day to get GPU Infinite Grass with 20% discount!19 Feb 2026 13:55 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mf7qoqnyck2lhttps://bsky.app/profile/sim.red/post/3mf3cky52gs2gI accidentally made the GPU Infinite Grass Booth page private for an hour or few... X_X Sorry for that! Now it's available again: redsim.booth.pm/items/7997362 https://redsim.booth.pm/items/799736217 Feb 2026 19:32 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mf3cky52gs2ghttps://bsky.app/profile/sim.red/post/3mf2hgdgyuk2iMy new "GPU Infinite Grass" is finally out! Renders millions of grass blades to the horizon! Mobile/Quest-ready, Light Volumes support, bendable by players and objects. Available on Booth & Patreon. 20% off for the first 3 days! redsim.booth.pm/items/7997362 https://patreon.com/posts/15093708617 Feb 2026 11:26 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mf2hgdgyuk2ihttps://bsky.app/profile/sim.red/post/3mdwnn5qp5s22I remember it like it was yesterday...03 Feb 2026 05:42 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mdwnn5qp5s22https://bsky.app/profile/sim.red/post/3mdhdkwljrs2gHacking to the Gate28 Jan 2026 03:31 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mdhdkwljrs2ghttps://bsky.app/profile/sim.red/post/3mdgb5vy2es2cI finally made the Divergence Meter prototype work! Now need to polish it and write a proper firmware.27 Jan 2026 17:16 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mdgb5vy2es2chttps://bsky.app/profile/sim.red/post/3md3xags7522oMururururururururururururu!23 Jan 2026 14:52 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3md3xags7522ohttps://bsky.app/profile/sim.red/post/3md3ompsprs2oJust got some PCBs I designed from JLCPCB. I hope, this thing will work as expected!23 Jan 2026 12:17 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3md3ompsprs2ohttps://bsky.app/profile/sim.red/post/3mczwilu7sk2rMy grass system is now closer to the release! It's now possible to draw up to 3 types of grass, or even more, but randomized or sorted by size. You can draw it on top of any mesh with the brush instrument I provide, or with vertex color paint in Blender.22 Jan 2026 19:33 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mczwilu7sk2rhttps://bsky.app/profile/sim.red/post/3mciscty5dc2sI was bored today, so I made an ESP32 pixel-camera. Would be really cool to make it a real portable device, but I'm too lazy (have a grass shader to finish)16 Jan 2026 00:03 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mciscty5dc2shttps://bsky.app/profile/sim.red/post/3mcga6mlv322aToday I improved GPU Grass with a feature I call "batched instancing". It builds a grass batch at runtime and instances it. No world size increase, less GPU memory usage, runtime grass amount control, and better perf. 144 FPS with 11.2M grass triangles visible to the horizon!14 Jan 2026 23:33 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mcga6mlv322ahttps://bsky.app/profile/sim.red/post/3mcd5ki7yvc2tHere's something I promised to show you… GPU grass that is actually fast and usable! It can be dynamically scattered over any mesh in your scene, can be bent by people's avatars or props, and it even works on Quest and mobile just fine. Still WIP, but you can check this world:13 Jan 2026 18:08 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mcd5ki7yvc2thttps://bsky.app/profile/sim.red/post/3mc2zz7rfi22yThe PCB I was working on and ordered from JLCPCB. I hope it will work when I assemble it! I bet, some of you can easily guess what it's gonna be...10 Jan 2026 12:43 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mc2zz7rfi22yhttps://bsky.app/profile/sim.red/post/3mc27dmwymk2qI can't stop working on new GPU particle systems. That's so many optimized stuff you can do with it! Will show you something really cool later...10 Jan 2026 04:46 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mc27dmwymk2qhttps://bsky.app/profile/sim.red/post/3mbnby33sec2gWorking on a PCB schematic for a device I wanted to make years ago...05 Jan 2026 01:29 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mbnby33sec2ghttps://bsky.app/profile/sim.red/post/3mb5sj7gn3s2kOnly two days left until 2026, and I'm releasing a new GPU Fireworks asset to celebrate the New Year! It includes timer that launches fireworks at each time zone. You can also generate any firework mesh you want! And it lights up the world with VRCLV. redsim.booth.pm29 Dec 2025 21:42 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3mb5sj7gn3s2khttps://bsky.app/profile/sim.red/post/3m7dbjzbobs2pGPU Particle Volumes got a few hotfixes. Version v.1.0.3 is out! If you installed it via the .unitypackage, please re-download it from Booth/Patreon. VCC users can simply update the package. The snow shader itself hasn’t changed.06 Dec 2025 15:04 +0000at://did:plc:w3st6pd4in2b45s5qsoonjyr/app.bsky.feed.post/3m7dbjzbobs2p