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Unity includes a tool for baking SDF textures: 🧊 I made this experimental shader for fully volumetric glass shaped to any object using a 3D distance texture. Handles layered self-refraction in a single pass (look at the ears, when the model is rotated), + explicit backface rendering via another... show more

Mirza Beig

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66,404 просмотров • 5 месяцев назад •via X (Twitter)

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$Great question! 🤔 How do you simulate *multiple* layers of glass/refraction in video games? In the last breakdown, I discussed how to create a glass shader in Unity URP. In essence, we were taking the render of the scene from the camera without any transparent objects. This is available in URP as the global _CameraOpaqueTexture. This is good enough for most use-cases, and more or less the classic way of doing it. 🔍 What is _CameraOpaqueTexture? As the name implies, there are no transparent objects rendered into this texture, so it's not possible by default to have something like a transparent-type ocean material/shader rendered through a refractive glass shader (which samples and distorts this texture to render on its surface, as if it's transparent). ⚠️ Why it’s tricky: It's much easier to sort without much further setup if you don't have refraction, and only a transparent material, because in that case you're not simulating the transparency yourself via sampling the rendered scene texture. But for refraction, it's required-- unless you want to go down the ray/path tracing route. You could simulate accurate, real dispersion... and that's about as expensive as it sounds, and it requires a rework of your entire rendering. --> 🚫 It's not a viable suggestion to offer. 📚 There are well-known terms regarding transparency sorting you can search up, but as you've specifically asked for refractive boxes, I'll discuss briefly about that. 🧱 Simulating layers of refraction: For this kind of rendering, you need some way to render the backfaces before rendering the front. And the backfaces that are rendered may contain whatever data you'd like for additional processing in the layer front-facing mesh render. 🧪 Examples: You could render the back face as a glass shader of its own, as an intermediate step after _CameraOpaqueTexture. Then you sample this texture instead and you end up with multi-layered refraction, "just like that". You can also render the back normals only, via a fully opaque shader, and use that to manually account for that during the front render. You could even bake in data needed for thickness in realtime. 🛠️ Without making it complicated for yourself, the most straightforward method is via render textures, and you can easily set some fractional resolution. Cameras in Unity have an open slot for target textures to render to. You can use custom render textures to process _SelfTexture2D. ⏱️ It's great to do low-resolution processing for more complex tasks, like blurring and caustics. You can get massive performance boosts, considering the square law and number of pixels/fragments that need calculations (quadratic scaling). 🚧 I've not fully exploited the possibilities myself, but research/development with PRISM is ongoing!$

Great question! 🤔 How do you simulate multiple layers of glass/refraction in video games? In the last breakdown, I discussed how to create a glass shader in Unity URP. In essence, we were taking the render of the scene from the camera without any transparent objects. This is available in URP as the global _CameraOpaqueTexture. This is good enough for most use-cases, and more or less the classic way of doing it. 🔍 What is _CameraOpaqueTexture? As the name implies, there are no transparent objects rendered into this texture, so it's not possible by default to have something like a transparent-type ocean material/shader rendered through a refractive glass shader (which samples and distorts this texture to render on its surface, as if it's transparent). ⚠️ Why it’s tricky: It's much easier to sort without much further setup if you don't have refraction, and only a transparent material, because in that case you're not simulating the transparency yourself via sampling the rendered scene texture. But for refraction, it's required-- unless you want to go down the ray/path tracing route. You could simulate accurate, real dispersion... and that's about as expensive as it sounds, and it requires a rework of your entire rendering. --> 🚫 It's not a viable suggestion to offer. 📚 There are well-known terms regarding transparency sorting you can search up, but as you've specifically asked for refractive boxes, I'll discuss briefly about that. 🧱 Simulating layers of refraction: For this kind of rendering, you need some way to render the backfaces before rendering the front. And the backfaces that are rendered may contain whatever data you'd like for additional processing in the layer front-facing mesh render. 🧪 Examples: You could render the back face as a glass shader of its own, as an intermediate step after _CameraOpaqueTexture. Then you sample this texture instead and you end up with multi-layered refraction, "just like that". You can also render the back normals only, via a fully opaque shader, and use that to manually account for that during the front render. You could even bake in data needed for thickness in realtime. 🛠️ Without making it complicated for yourself, the most straightforward method is via render textures, and you can easily set some fractional resolution. Cameras in Unity have an open slot for target textures to render to. You can use custom render textures to process _SelfTexture2D. ⏱️ It's great to do low-resolution processing for more complex tasks, like blurring and caustics. You can get massive performance boosts, considering the square law and number of pixels/fragments that need calculations (quadratic scaling). 🚧 I've not fully exploited the possibilities myself, but research/development with PRISM is ongoing!

Mirza Beig

61,581 просмотров • 1 год назад

FASTER for #Amiga OCS/ECS: switched over to single pass (rather than 4 pass) rendering for car and scenery bobs, giving a noticeable increase in performance. Further evidence for any existing doubters out there that this is definitely not a lazy port from the ST! 😄

FASTER for #Amiga OCS/ECS: switched over to single pass (rather than 4 pass) rendering for car and scenery bobs, giving a noticeable increase in performance. Further evidence for any existing doubters out there that this is definitely not a lazy port from the ST! 😄

Jonathan Thomas @atariste.bsky.social

11,176 просмотров • 1 год назад

#UEFN Material tips 🗣️🔥 Use Bump Offset to create fake depth for textures. In this example, I used it to add a darker secondary fence texture that feels behind the main one, like in the 3D world, while remaining a 2D texture applied to the mesh.

#UEFN Material tips 🗣️🔥 Use Bump Offset to create fake depth for textures. In this example, I used it to add a darker secondary fence texture that feels behind the main one, like in the 3D world, while remaining a 2D texture applied to the mesh.

Giova

17,118 просмотров • 1 год назад

Minecraft is now rendering on a PS5 emulator. It's still heavily glitched, but this is another meaningful step for PS5 emulation. Current progress: • Main menu boots • World loads • Some blocks, like beds, render correctly • Basic rendering pipeline appears functional The biggest issue now seems to be texture handling. The PS5's texture memory still isn't being translated correctly into Vulkan images, causing most textures to break. It's far from playable, but every correctly rendered object is another clue that the emulator is moving in the right direction. Credit: discord/Arbis

Minecraft is now rendering on a PS5 emulator. It's still heavily glitched, but this is another meaningful step for PS5 emulation. Current progress: • Main menu boots • World loads • Some blocks, like beds, render correctly • Basic rendering pipeline appears functional The biggest issue now seems to be texture handling. The PS5's texture memory still isn't being translated correctly into Vulkan images, causing most textures to break. It's far from playable, but every correctly rendered object is another clue that the emulator is moving in the right direction. Credit: discord/Arbis

Techjunkie Aman

103,408 просмотров • 1 месяц назад

Here is DLSS5 working on an animation I made in Unreal. It uses the existing geometry, animation, textures and lighting to render. It doesn't make stuff up out of thin air. There is zero generative AI. This is the exact use of AI that people have wanted. As a tool where artists maintain full art direction. Neural rendering makes creating amazing art with real 3D models easier and more accessible. All 3D artists should be excited. Here is another explanation by Daniel Vávra ⚔ Is this a 3D model? I encourage you to create a 3D model or animation sometime and try it out for yourself, it can be fun creating something!

Here is DLSS5 working on an animation I made in Unreal. It uses the existing geometry, animation, textures and lighting to render. It doesn't make stuff up out of thin air. There is zero generative AI. This is the exact use of AI that people have wanted. As a tool where artists maintain full art direction. Neural rendering makes creating amazing art with real 3D models easier and more accessible. All 3D artists should be excited. Here is another explanation by Daniel Vávra ⚔ Is this a 3D model? I encourage you to create a 3D model or animation sometime and try it out for yourself, it can be fun creating something!

Unreal Sensei

124,309 просмотров • 6 дней назад

Deus EX: MD's frosted glass panels. Playing for... research/reference. 🙂🤗 This game is ~10 years old! I love the masking effects, but you can see it's *not* rendering multiple layers of transparency. Most likely, they have a single blurred texture which they blend.

Deus EX: MD's frosted glass panels. Playing for... research/reference. 🙂🤗 This game is ~10 years old! I love the masking effects, but you can see it's not rendering multiple layers of transparency. Most likely, they have a single blurred texture which they blend.

Mirza Beig

170,749 просмотров • 5 месяцев назад

Virtual Textures in the Browser. This is a WebGL 2.0 implementation I did in 2023. The car model is from Sketchfab by Pavel Matoušek. It's a worst-case for virtual textures because the texture is generated from photogrametry software and has pathologically bad UV layout. The texture is 16,384 x 16,384 pixels, which is 180 Mb of PNG data. Loading this in Blender would crash Blender for me back then. The GPU memory requirement for this texture is 1 Gb. The VT displays the model after loading just 34 Kb (one tile). The other tiles are fetched in via a smart priority queue in the background as you move camera around the scene. The physical page texture is 2k, which is 16 times smaller than the source. The solution supports multiple separate virtual textures, and has GLTF integration. Texture filtering as well as anisotropy are fully supported as well. You can try the demo yourself here: Here's a writeup I did while working on this: The video recorded on a very crummy internet connection and I intentionally reload the page in the middle. The delay comes from the geometry download, actual texture part is near-instant.

Virtual Textures in the Browser. This is a WebGL 2.0 implementation I did in 2023. The car model is from Sketchfab by Pavel Matoušek. It's a worst-case for virtual textures because the texture is generated from photogrametry software and has pathologically bad UV layout. The texture is 16,384 x 16,384 pixels, which is 180 Mb of PNG data. Loading this in Blender would crash Blender for me back then. The GPU memory requirement for this texture is 1 Gb. The VT displays the model after loading just 34 Kb (one tile). The other tiles are fetched in via a smart priority queue in the background as you move camera around the scene. The physical page texture is 2k, which is 16 times smaller than the source. The solution supports multiple separate virtual textures, and has GLTF integration. Texture filtering as well as anisotropy are fully supported as well. You can try the demo yourself here: Here's a writeup I did while working on this: The video recorded on a very crummy internet connection and I intentionally reload the page in the middle. The delay comes from the geometry download, actual texture part is near-instant.

Alex Goldring

19,368 просмотров • 7 месяцев назад

I'm not certain how I came across this tool, but it has proven to be extremely helpful for creating some texture effects while I work on stylized shaders. Below is a quick preview of the most useful effects. #3d #texture #tips #tools

I'm not certain how I came across this tool, but it has proven to be extremely helpful for creating some texture effects while I work on stylized shaders. Below is a quick preview of the most useful effects. #3d #texture #tips #tools

Ciro Cardoso

61,824 просмотров • 1 год назад

Ever since I saw the 'pass through' fidgets, I wanted to try using the same technique for something a bit bigger. It took me a while to get it smooth, but here is my Twisted Headphone Stand. Stls and 3mf:

Ever since I saw the 'pass through' fidgets, I wanted to try using the same technique for something a bit bigger. It took me a while to get it smooth, but here is my Twisted Headphone Stand. Stls and 3mf:

3DPrintBunny

18,385 просмотров • 1 год назад

FASTER for #Amiga OCS/ECS: I never imagined saying this in a million years, but I seem to be struggling to get the performance I need out of the blitter, and I don't even have all the stuff on screen yet! Anybody know a faster way of rendering bobs than the cookie cutter method?

FASTER for #Amiga OCS/ECS: I never imagined saying this in a million years, but I seem to be struggling to get the performance I need out of the blitter, and I don't even have all the stuff on screen yet! Anybody know a faster way of rendering bobs than the cookie cutter method?

Jonathan Thomas @atariste.bsky.social

13,897 просмотров • 1 год назад

Here's a look at the new updated body textures for our 3D customizable vtuber model! :D I wanted to soften the shading and add more detail -^u^- ✨ Only 28 days left until the update releases!💜

Here's a look at the new updated body textures for our 3D customizable vtuber model! :D I wanted to soften the shading and add more detail -^u^- ✨ Only 28 days left until the update releases!💜

Pastell & Palette🤍 3D Customizable Model!

15,876 просмотров • 2 месяцев назад

ok a full view of the in progress new vox model it will be FREE Includes 4 wires on the model and all the others are separated since it's spline rigged i think will be fine for use normal suit casual suit vox populi song suit face MUST be animated SEPARATED in another file and used as TEXTURE on his monitor, the v1 vox method worked fine but was a lil limited tbh and could break easily, this one works better and it's more accurate texture are simple but cool i guess? i didn't wanted to use cell shader again

ok a full view of the in progress new vox model it will be FREE Includes 4 wires on the model and all the others are separated since it's spline rigged i think will be fine for use normal suit casual suit vox populi song suit face MUST be animated SEPARATED in another file and used as TEXTURE on his monitor, the v1 vox method worked fine but was a lil limited tbh and could break easily, this one works better and it's more accurate texture are simple but cool i guess? i didn't wanted to use cell shader again

Lukasz 🇧🇷

42,521 просмотров • 9 месяцев назад

A ~Special~ date with Nikki ~ I wanted to try something doing something really "out there" for this Valentine's. So I went with, "Using hypnosis on a date in Huniepop." This isn't exactly what I had in mind, but it's as close as I can get. I hope you guys enjoy it

A ~Special~ date with Nikki ~ I wanted to try something doing something really "out there" for this Valentine's. So I went with, "Using hypnosis on a date in Huniepop." This isn't exactly what I had in mind, but it's as close as I can get. I hope you guys enjoy it

H🔞 (Orders/Comms Always Open)

14,783 просмотров • 2 лет назад

so i guess because my pc got wiped i might as well posted something i had baking in the oven for quite a while really wanted to do an animation meme but i lost the files to everything so this is all i have left :[

so i guess because my pc got wiped i might as well posted something i had baking in the oven for quite a while really wanted to do an animation meme but i lost the files to everything so this is all i have left :[

🏳️‍⚧️ CAWSMIC 🏳️‍⚧️

88,501 просмотров • 3 лет назад

First, I built only a debugging tool for my new STEP-to-STL converter, but this project quickly became the 3D model viewer I'd always wanted! Try it Free & OpenSource:

First, I built only a debugging tool for my new STEP-to-STL converter, but this project quickly became the 3D model viewer I'd always wanted! Try it Free & OpenSource:

Stefan - CNC Kitchen

53,055 просмотров • 1 месяц назад

This is what a hand drawn SDF shadow map looks like on a 3D vtuber model! A lot of games that have an anime art style use this technique🩷 I wanted to try making my own for our 3D customizable vtuber avatar✨It will be included for free in the first update!

Pastell & Palette🤍 3D Customizable Model!

23,129 просмотров • 9 месяцев назад

I always wanted to try writing a MUD (old school multi-user dungeon/text adventure game). Playing MUDs is what inspired me to work on World of Warcraft. I used Grok to generate a command parser for the game in python. Took about 15 tries this morning to get something that would handle what I wanted. It handles "intents" like move, attack. It can chain commands and also understands moving into and out of objects "climb in the well." It can handle some simple inference, like using "it" to refer to the last object used. It's a fun experiment. I'll keep it going from time to time.

I always wanted to try writing a MUD (old school multi-user dungeon/text adventure game). Playing MUDs is what inspired me to work on World of Warcraft. I used Grok to generate a command parser for the game in python. Took about 15 tries this morning to get something that would handle what I wanted. It handles "intents" like move, attack. It can chain commands and also understands moving into and out of objects "climb in the well." It can handle some simple inference, like using "it" to refer to the last object used. It's a fun experiment. I'll keep it going from time to time.

Grummz

31,317 просмотров • 1 год назад