RED_SIM
@sim.red
Game developer, technical artist, engineer, VR/AR enthusiast, dreamer.
I also make shaders for VRChat creators.
I also make shaders for VRChat creators.
FlexiCurve, my garland tool, updated to v.1.2.1. Now it supports tinsel garlands and VRC Light Volumes! And it's open-source and free: github.com/REDSIM/Flexi...
You can also support me buying the new tinsels preset for it on my Booth or Patreon!
redsim.booth.pm/items/7676455
You can also support me buying the new tinsels preset for it on my Booth or Patreon!
redsim.booth.pm/items/7676455
November 22, 2025 at 1:56 AM
FlexiCurve, my garland tool, updated to v.1.2.1. Now it supports tinsel garlands and VRC Light Volumes! And it's open-source and free: github.com/REDSIM/Flexi...
You can also support me buying the new tinsels preset for it on my Booth or Patreon!
redsim.booth.pm/items/7676455
You can also support me buying the new tinsels preset for it on my Booth or Patreon!
redsim.booth.pm/items/7676455
New Game Boy Advance inspired prop for your avatars & worlds! Special shader shows inner parts with parallax, blurs/refracts light, supports VRCLV & Unity lighting, monitors FPS with a graph, and even plays GIFs! Available on my Booth: redsim.booth.pm/items/7272387
August 7, 2025 at 9:58 PM
New Game Boy Advance inspired prop for your avatars & worlds! Special shader shows inner parts with parallax, blurs/refracts light, supports VRCLV & Unity lighting, monitors FPS with a graph, and even plays GIFs! Available on my Booth: redsim.booth.pm/items/7272387
アバターやワールド向けのGame Boy Advance風プロップ！パララックスで内部を表現し、光をぼかし・屈折、VRCLV＆Unityライティング対応、FPSグラフ表示やGIF再生も可能！Boothで公開中: redsim.booth.pm/items/7272387
August 7, 2025 at 9:58 PM
アバターやワールド向けのGame Boy Advance風プロップ！パララックスで内部を表現し、光をぼかし・屈折、VRCLV＆Unityライティング対応、FPSグラフ表示やGIF再生も可能！Boothで公開中: redsim.booth.pm/items/7272387
Light Volumes v.2.0.0 released!
Now it has Light Volume based super optimized analytical Point Lights, Spot Lights and Area Lights. (Up to 128 at the same time)
Ability to project images and cubemaps.
Also baked shadow masks and even more features!
github.com/REDSIM/VRCLi...
Now it has Light Volume based super optimized analytical Point Lights, Spot Lights and Area Lights. (Up to 128 at the same time)
Ability to project images and cubemaps.
Also baked shadow masks and even more features!
github.com/REDSIM/VRCLi...
July 20, 2025 at 5:39 PM
Light Volumes v.2.0.0 released!
Now it has Light Volume based super optimized analytical Point Lights, Spot Lights and Area Lights. (Up to 128 at the same time)
Ability to project images and cubemaps.
Also baked shadow masks and even more features!
github.com/REDSIM/VRCLi...
Now it has Light Volume based super optimized analytical Point Lights, Spot Lights and Area Lights. (Up to 128 at the same time)
Ability to project images and cubemaps.
Also baked shadow masks and even more features!
github.com/REDSIM/VRCLi...
Just reworked the light sources attenuation in VRC Light Volumes 2.0 You'll be able to set the size of a light source itself, like a bulb's radius, instead of setting the range of the light. It's completely different comparing to Unity's lights, but the overall visual look is more physically correct
July 3, 2025 at 9:12 PM
Just reworked the light sources attenuation in VRC Light Volumes 2.0 You'll be able to set the size of a light source itself, like a bulb's radius, instead of setting the range of the light. It's completely different comparing to Unity's lights, but the overall visual look is more physically correct
Light Volumes 2.0 will support baked 3D shadows for point and spot lights, and that's how it can be used!
Thanks to @pema99.bsky.social for implementing this feature!
Thanks to @pema99.bsky.social for implementing this feature!
July 1, 2025 at 2:04 AM
Light Volumes 2.0 will support baked 3D shadows for point and spot lights, and that's how it can be used!
Thanks to @pema99.bsky.social for implementing this feature!
Thanks to @pema99.bsky.social for implementing this feature!
Area Light Volumes... Thanks to @pema99.bsky.social for implementing and contributing such an amazing feature to VRC Light Volumes! I can already imagine people using it as studio softboxes for photography!
June 8, 2025 at 2:39 AM
Area Light Volumes... Thanks to @pema99.bsky.social for implementing and contributing such an amazing feature to VRC Light Volumes! I can already imagine people using it as studio softboxes for photography!
Now Point Light Volumes supports Cubemap projections! Volumetric fog makes it look just stunning!
But here's some bad news...
If I release it, all world creators will need to update their worlds to the new Light Volumes version. Otherwise it will break the back compatibility.
But here's some bad news...
If I release it, all world creators will need to update their worlds to the new Light Volumes version. Otherwise it will break the back compatibility.
May 28, 2025 at 5:33 PM
Now Point Light Volumes supports Cubemap projections! Volumetric fog makes it look just stunning!
But here's some bad news...
If I release it, all world creators will need to update their worlds to the new Light Volumes version. Otherwise it will break the back compatibility.
But here's some bad news...
If I release it, all world creators will need to update their worlds to the new Light Volumes version. Otherwise it will break the back compatibility.
Point Light Volumes prototype! They can be both Point and Spot Lights, can be calculated mathematically or use a special LUT texture that controls the cone falloff and attenuation! Up to 128 lights per scene. Works up to 3- 4 time faster than regular Light Volumes. AudioLink works too!
May 27, 2025 at 6:54 PM
Point Light Volumes prototype! They can be both Point and Spot Lights, can be calculated mathematically or use a special LUT texture that controls the cone falloff and attenuation! Up to 128 lights per scene. Works up to 3- 4 time faster than regular Light Volumes. AudioLink works too!
Spot Light Volumes! Everything is parametric here and not baked into a 3D texture, as regular light volumes, which makes it even more optimized. Will work on it a little bit more and see if it's worth to add it to the main project branch.
May 25, 2025 at 11:23 AM
Spot Light Volumes! Everything is parametric here and not baked into a 3D texture, as regular light volumes, which makes it even more optimized. Will work on it a little bit more and see if it's worth to add it to the main project branch.
Point Light Volumes? Not sure if I will integrate it, but I just don't like people using baked volumes as fake point lights and spot lights. Integration for shader makers would just require to update my .cginc file I provide. For people - to update the shader and reupload their avatars again.
May 25, 2025 at 12:00 AM
Point Light Volumes? Not sure if I will integrate it, but I just don't like people using baked volumes as fake point lights and spot lights. Integration for shader makers would just require to update my .cginc file I provide. For people - to update the shader and reupload their avatars again.
VRC Light Volumes v.1.0.0 released! A VRChat asset that brings nextgen voxel based lighting into your worlds! Get it here for free on my GitHub: github.com/REDSIM/VRCLi...
May 21, 2025 at 3:26 AM
VRC Light Volumes v.1.0.0 released! A VRChat asset that brings nextgen voxel based lighting into your worlds! Get it here for free on my GitHub: github.com/REDSIM/VRCLi...
VRC Light Volumes AudioLink support! Just imagine VRChat clubs using this! Minimal performance cost and buttery-smooth FPS, even on potato PCs.
Thanks to @vard.cc for integrating AudioLink support
Thanks to @vard.cc for integrating AudioLink support
May 13, 2025 at 8:03 AM
VRC Light Volumes AudioLink support! Just imagine VRChat clubs using this! Minimal performance cost and buttery-smooth FPS, even on potato PCs.
Thanks to @vard.cc for integrating AudioLink support
Thanks to @vard.cc for integrating AudioLink support
I just implemented dynamic additive Light Volumes feature! It can be used as super optimized real-time lights. No shadow casting but still looks cool. Here I also integrated it into Silent's Filamented shader to make it work with lightmaps on baked objects too.
April 23, 2025 at 12:53 PM
I just implemented dynamic additive Light Volumes feature! It can be used as super optimized real-time lights. No shadow casting but still looks cool. Here I also integrated it into Silent's Filamented shader to make it work with lightmaps on baked objects too.
This week I've been working on the VRChat Light Volumes scripts to bring you an easy and comfortable editor workflow. I also implemented the Volumes rotation feature and optimized the shader a lot to make it work even more solid on potatoe-PCs. Here's a small video of how it currently works.
April 21, 2025 at 12:18 AM
This week I've been working on the VRChat Light Volumes scripts to bring you an easy and comfortable editor workflow. I also implemented the Volumes rotation feature and optimized the shader a lot to make it work even more solid on potatoe-PCs. Here's a small video of how it currently works.
Compared to light probes, it affects objects partially. Additionally, it supports features like dynamic day/night cycles, movable lights, togglable and dimmable lights, and more. It’s also compatible with dynamic batching, which can make it even faster than light probes in some cases.
April 14, 2025 at 5:53 PM
Compared to light probes, it affects objects partially. Additionally, it supports features like dynamic day/night cycles, movable lights, togglable and dimmable lights, and more. It’s also compatible with dynamic batching, which can make it even faster than light probes in some cases.
VRC Light Volumes is a next-gen voxel based baked volumetric lighting solution for VRChat, I'm working on right now! It affects avatars, dynamic props, etc. Works really fast without major overhead even on Quest. It will be fully open-source and free, so stay tuned! #vrchat #gamedev #shader
April 14, 2025 at 5:53 PM
