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Sparse Volumetric Light maps (WebGPU). Worked on ensuring C0 continuity across the entire map. For now this is achieved by purging incomplete node levels, works well enough even if it's a bit of a blunt tool. Actual locations for probes during the bake are now going through an optimization... show more

Alex Goldring

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15,814 Aufrufe • vor 4 Monaten •via X (Twitter)

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Sparse Volumetric Light maps (WebGPU). Pretty happy with the current state. - Improved probe placement optimization, reducing light leaks - Worked on various smaller bugs light map stats: - VRAM Size: 20Mb - Probe samples: 16,384 - Probe count: 324,674 - Bake time: 267s - Bake hardware: RTX 4090

Sparse Volumetric Light maps (WebGPU). Pretty happy with the current state. - Improved probe placement optimization, reducing light leaks - Worked on various smaller bugs light map stats: - VRAM Size: 20Mb - Probe samples: 16,384 - Probe count: 324,674 - Bake time: 267s - Bake hardware: RTX 4090

Alex Goldring

20,350 Aufrufe • vor 4 Monaten

My #threejs Lumen Decor Studio is getting an update. It will now support more settings and more complex scenes, thanks to the latest library updates. I'm combining #WebGPU SSGI with light probes, giving us the best of both worlds. Real-time light bounces via SSGI, and when the camera stops moving, I bake probes to measure the average light in the room, generating fill lights that paint an envmap. I also created a denoiser for SSGI, avoiding the previous blur that discarded the AO. Now, everything is lighter, a little noisier, but it complements indirect light well. Live link coming soon. BTW: The video is on my YouTube Channel in case you want to watch it in a higher resolution: #creativecoding #archiviz #WebGPU

My #threejs Lumen Decor Studio is getting an update. It will now support more settings and more complex scenes, thanks to the latest library updates. I'm combining #WebGPU SSGI with light probes, giving us the best of both worlds. Real-time light bounces via SSGI, and when the camera stops moving, I bake probes to measure the average light in the room, generating fill lights that paint an envmap. I also created a denoiser for SSGI, avoiding the previous blur that discarded the AO. Now, everything is lighter, a little noisier, but it complements indirect light well. Live link coming soon. BTW: The video is on my YouTube Channel in case you want to watch it in a higher resolution: #creativecoding #archiviz #WebGPU

Anderson Mancini

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Since using probes is a very technical subject and difficult to understand without visual examples, I decided to create a video with an exaggerated example to show the incredible results that mrdoob 's work with probes can provide. As you can see in the video, the hybrid solution of probes with SSGI blends the best of both worlds: projected lights when the objects emitting the color are in the scene, and indirect light provided by the probes when they are not. Of course, nobody is going to use red and green walls at home lol. This is just a visual example to exaggerate the use and demonstrate how the technology works from a creative point of view. I hope it helps someone 🤗. #threejs #threejsJourney #creativecoding #webgpu

Since using probes is a very technical subject and difficult to understand without visual examples, I decided to create a video with an exaggerated example to show the incredible results that mrdoob 's work with probes can provide. As you can see in the video, the hybrid solution of probes with SSGI blends the best of both worlds: projected lights when the objects emitting the color are in the scene, and indirect light provided by the probes when they are not. Of course, nobody is going to use red and green walls at home lol. This is just a visual example to exaggerate the use and demonstrate how the technology works from a creative point of view. I hope it helps someone 🤗. #threejs #threejsJourney #creativecoding #webgpu

Anderson Mancini

12,199 Aufrufe • vor 16 Tagen

Few more feature highlights from the upcoming early access: Task Notes & World Map. Task Notes allows you to save task details from the traders. Since early access has +30 tasks, it seemed kind of necessary to have this tool, so you can check those details without the traders (once added to notes). World Map is a tool for checking out the accessible maps, zones and getting an overview of the game world. This tool has an item requirement, so you can only open the map view once compatible map item is equipped. Vostok area remains always unmapped, so you can only locate Area 05 maps with this tool. Visually the world view is also bit placeholder, but will probably do the job for now.

Few more feature highlights from the upcoming early access: Task Notes & World Map. Task Notes allows you to save task details from the traders. Since early access has +30 tasks, it seemed kind of necessary to have this tool, so you can check those details without the traders (once added to notes). World Map is a tool for checking out the accessible maps, zones and getting an overview of the game world. This tool has an item requirement, so you can only open the map view once compatible map item is equipped. Vostok area remains always unmapped, so you can only locate Area 05 maps with this tool. Visually the world view is also bit placeholder, but will probably do the job for now.

Road to Vostok

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Working on sparse volumetric light maps for WebGPU. Got generation part sorted. The resolution is adaptive, refining near geometry and skipping through most of the empty space. The video is question uses a map that's only 10MB in size, including everything. That's less the amount of GPU memory that a single leaf takes up on one of threes in the scene, or texture on one of the sign-posts. We get about 1 sample every 30 centimeters in the world space. As a side note: gave my renderer quite the workout, rendering each probe as a separate non-instanced mesh for debugging.

Working on sparse volumetric light maps for WebGPU. Got generation part sorted. The resolution is adaptive, refining near geometry and skipping through most of the empty space. The video is question uses a map that's only 10MB in size, including everything. That's less the amount of GPU memory that a single leaf takes up on one of threes in the scene, or texture on one of the sign-posts. We get about 1 sample every 30 centimeters in the world space. As a side note: gave my renderer quite the workout, rendering each probe as a separate non-instanced mesh for debugging.

Alex Goldring

18,651 Aufrufe • vor 4 Monaten

The DOJ has opened a civil rights investigation into the Portland Police Department. This probes focus is on allegations of discrimination and biased policing practices during recent anti-Immigration and ICE protests in Portland.

The DOJ has opened a civil rights investigation into the Portland Police Department. This probes focus is on allegations of discrimination and biased policing practices during recent anti-Immigration and ICE protests in Portland.

Patricia 🇺🇸

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Working on Sparse Volumetric Light-maps. Thanks to CynicatPro🎃 for pointing me at Unreal's version. In a nutshell it's just another sparse voxel data structure. My implementation is, no doubt, different from Epic Games Store's own. I'm using 4x4x4 probe grid with intermediate nodes having very wide branching factor of 64 as well (4x4x4). I liked the parameters that Unreal is using, of limiting both total memory as well as the lowest level of detail, which is common in sparse grid implementations. Here's Bistro scene with just 1Mb limit. This is roughly equivalent to a 512x512 lightmap texture in 2d, except surface light maps require unique UVs and you typically get very little detail out of 512 resolution texture with a lot of light leaking. There is also no directional response. My implementation encodes second-order spherical harmonics for each probe (9 coefficients), encoding RGB channels as RGBE9995 (4 bytes). So far only worked on the structure, actual bake is yet to come. I've been eyeing sparse voxel structures for a while now, and have been studying them roughly since the GigaVoxel paper by Cyril Crassin but never really implemented anything for the GPU before. I was always the BVH-kind of guy. It's a fascinating topic. --- Stats for the scene: --- Total memory usage: 1.000 MB Node count: 609 Unique probe count: 24,025 Probe reuse: 38.36 % Unexpanded nodes: 15,714 --- Again, note that there is no GI going on here, only the structure of the probe tree and the algorithm for building it from a given scene.

Working on Sparse Volumetric Light-maps. Thanks to CynicatPro🎃 for pointing me at Unreal's version. In a nutshell it's just another sparse voxel data structure. My implementation is, no doubt, different from Epic Games Store's own. I'm using 4x4x4 probe grid with intermediate nodes having very wide branching factor of 64 as well (4x4x4). I liked the parameters that Unreal is using, of limiting both total memory as well as the lowest level of detail, which is common in sparse grid implementations. Here's Bistro scene with just 1Mb limit. This is roughly equivalent to a 512x512 lightmap texture in 2d, except surface light maps require unique UVs and you typically get very little detail out of 512 resolution texture with a lot of light leaking. There is also no directional response. My implementation encodes second-order spherical harmonics for each probe (9 coefficients), encoding RGB channels as RGBE9995 (4 bytes). So far only worked on the structure, actual bake is yet to come. I've been eyeing sparse voxel structures for a while now, and have been studying them roughly since the GigaVoxel paper by Cyril Crassin but never really implemented anything for the GPU before. I was always the BVH-kind of guy. It's a fascinating topic. --- Stats for the scene: --- Total memory usage: 1.000 MB Node count: 609 Unique probe count: 24,025 Probe reuse: 38.36 % Unexpanded nodes: 15,714 --- Again, note that there is no GI going on here, only the structure of the probe tree and the algorithm for building it from a given scene.

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I'm started learning Unreal. As a Unity dev of 8 years, are you kidding me? You can get this kind of realtime GI & reflections straight out the box in UE? No light probes/baking? what's the catch? this feels like a trap.

I'm started learning Unreal. As a Unity dev of 8 years, are you kidding me? You can get this kind of realtime GI & reflections straight out the box in UE? No light probes/baking? what's the catch? this feels like a trap.

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Lightmap switching is now part of day/night cycle. Despite dozens of environment elements (light color/rotation, materials, fog, reflection probes, etc.) being controller per frame at 288X speed, the performance is only becoming more stable by the day. #VRChat #unity3d

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Touch reconstruction works super well with only 4 probes

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In Unity 2022 we can finally use Realtime GI together with Progressive lightmapping without it clearing probes. That means pi 's LTCGI can now be combined with proper light probes too! #VRChat #Unity3d

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