Show HN: Gaussian Splat of a Strawberry

This was also my first thought when I zoomed in into the strawberry. I wonder if you can achieve a microscope like effect with a more suitable setup. E.g. better lighting, zoom, lens, etc.

danybittel22• 2 months ago

I have done 2x macro (an ant).. and want to try 5x.. but as you get closer, the depth of field becomes really shallow. You can do focus stacking but you risk that the individual areas in focus are less ideal aligned and the tracking can't make any sense out of the geometry anymore.

jcattle• 2 months ago

Don't know if this would be in your wheelhouse, but for very nice macro splats, check out the work by Dany Bittel: https://danybittel.ch/macro.html

For example this bumblebee: https://superspl.at/scene/cf6ac78e

Edit: I completely missed that this was posted by him (:

kridsdale13• 2 months ago

Incredible that specular highlight isotropy vectors are somehow encoded.

galsapir• 2 months ago

From the link: "Shot from 90 perspectives, 88 focus stacked images each. Nikon Z8, full frame, f/7.1, exposure 1/160, ISO 100, Laowa 180mm macro lens, with LED light and bluescreen." Insane!

danybittel22• 2 months ago

And it only takes 20 Minutes to shoot all 7920 photos, the Z8 is crazy fast.

dudefeliciano3• 2 months ago

i made some decent splats (admittedly much lower quality than this) by taking video with my iphone13 mini and then chopping it up into individual frames via ffmpeg

MattCruikshank6• 2 months ago

Where's the Lytro camera when you need one?

I was really pulling for OTOY to keep making light field capture and display technology...

danybittel22• 2 months ago

There is actually still a Lytro type camera for industrial application available: https://raytrix.de/ Too low res, too expensive for my use case unfortunately.

mgaunard• 2 months ago

What happened to the bottom of that poor strawberry?

danybittel22• 2 months ago

It was mounted at the bottom.. and I can't quite reach it with my camera. Might have to try some two pass way.

gobdovan3• 2 months ago

Mount it on a needle/skewer, it should let you capture it in one pass.

CatMustard• 2 months ago

I wonder would a good, sharp needle and thread make for good mounting for a soft object like this? Thread the needle, pass it right through the strawberry and the secure the thread on something above and below. As long as the strawberry doesn't slide down the thread (hopefully a strawberry is light enough friction would hold it in place!)

Anyway, very cool splat, fair play

josh-wrale2• 2 months ago

How about green screen + rotate the strawberry on a skewer

gobdovan3• 2 months ago

Gaussian splat casualty. The bottom looks like partially missing from the reconstruction.

timonoko2• 2 months ago

When you cut the splat in half, result is either fuzzy fog or sort-of fibrous crystals. As depicted here.

timonoko2• 2 months ago

What? KIRI Engine makes splats. I always wondered what 3DGS might mean.

Yes. I knoweth what "splats" are: They are splats of fuzzy blobs on the display surface.

brazzy• 2 months ago

Lovely! How was the mechanical setup to ensure that all those shots are consistent, and how long did it take?

danybittel22• 2 months ago

I posted some pictures.. takes only 20 min!

a1o2• 2 months ago

Can you show the setup?

(Can we do a Gaussian Splat of the setup of the photograph for the Gaussian Splat of the Strawberry?)

danybittel22• 2 months ago

I just posted some images.. I have actually done my studio, (quality is.. let's say painterly ;-): https://superspl.at/scene/0a3916cd

a1o2• 2 months ago

THAT IS AMAZING!! Seriously, impressive work! Thanks for the link.

burningion• 2 months ago

The splat of the studio has the perfect amount of detail. It looks like you're streaming from the camera direct to the computer usually? How do you check the progress / quality while capturing? Seeing the (great) results makes me more curious about the process of creating now.

svetlins• 2 months ago

Great work! There are more awesome splats on the author's profile page: https://superspl.at/user?id=danylyon

voidUpdate• 2 months ago

Gaussian splats look really good from a distance, but as soon as you zoom in, they really fall off a cliff :/

bozdemir• 2 months ago

this is awesome, I wonder what's under there, looks black, maybe thats where they mounted and rotated the strawberry...

danybittel22• 2 months ago

Yes mounting.. and I can't quite reach all the way from below.

vessenes• 2 months ago

Dany, this is so cool.

I'm wondering if the splat community has decided this paper is valuable -- https://github.com/fraunhoferhhi/Self-Organizing-Gaussians -- looking at all the detail in the strawberry splat made me wonder how small one can get the download, and what the current state of the art is for compression.

danybittel22• 2 months ago

Thanks! We have two compressed formats, the sog by PlayCanvas and spz with sparkjs. Both now support LODs and compress really well.

zokier3• 2 months ago

My intuition is that in theory focus stacking should not be necessary as preprocessing step for 3dgs (or photogrammetry). Does anyone know if there is any recent developments in this regard?

Focus stacking generally is not perfect process and can lead to artifacts/errors and I'd imagine those can then compound when stacked images are used for 3dgs. Also the image focus actually provides some depth data in itself that could be useful?

KeplerBoy3• 2 months ago

If you don't focus stack and try to train on partially unfocused images, the optimizer will try to match the rendered view to be also partially unfocused.

You would have to mask out the blurry areas for each image. I guess one could just implement a feature where the optimizer only optimizes gaussians within the sharp distances relative to the camera.

zokier3• 2 months ago

Other way of looking at the question is if you could make focus stacking better by using the full multi-view dataset? Afaik focus stacking essentially does depth estimation so it seems like multiple views would help with that.

Another way would be some kind of 4d GS where one dimension is the focus distance. But I'd guess the renders would inherently have shallow depth then, which is less useful usually.

danybittel22• 2 months ago

This is an interesting question. There has been some attempt to model the camera better than just a pinhole camera, that could work. https://dof-gaussian.github.io/ https://github.com/leoShen917/DoF-Gaussian

My take.. at a macro scale, the dof is usually so small, that it's hard to get a reliably track. So you'd need some sort of way to tell that these stacked photos belong into a series, and then you sort of are doing focus stacking :-) I do think the alignment algorithm could be improved. Maybe the approaches I linked could be used to make a much more robust focus stacking algorithm, that also corrects for 3D geometry. That would be really cool!

Vinnl2• 2 months ago

I read [1], but I still don't quite know what I'm looking at. My guess is a 3D model reconstructed from lots of detailed pictures?

[1] https://en.wikipedia.org/wiki/Gaussian_splatting

marceldegraaf• 2 months ago

This video explains how Gaussian splatting works: https://www.youtube.com/watch?v=X8yRlA7jqEQ

k2xl• 2 months ago

This was great, thanks for sharing

ddon• 2 months ago

Thank you for the link, amazing video!

StevenNunez• 2 months ago

https://youtube.com/watch?v=X8yRlA7jqEQ is how I learned about them. They're really cool!

jaccola2• 2 months ago

Lots of translucent blobs composited to produce the appearance of a strawberry.

There is no mesh or model. The visual surface of the strawberry could be made up of blobs spaced far apart physically and not where the surface appears to be.

This is why they are called radiance fields, they model the light not the geometry.

Practically the blobs positions/rotations can be constrained to better physically match the geometry of a strawberry.

KeplerBoy3• 2 months ago

I'm not sure i agree. The blobs are exactly where the surface appear to be because they are constrained by multiple viewing angles.

Otherwise the splat would fall apart as soon as the viewing angle is changed slightly (Which it absolutely does in many examples on supersplat, you cannot really create an out of distribution view with 3GS, it's not magic)

KerrickStaley• 2 months ago

Here’s a good 2 minute explainer https://youtu.be/HVv_IQKlafQ

Vinnl2• 2 months ago

Oh thanks - I was waiting for a moment where I could turn up sound to watch the other video, but I didn't realise that that would set me back half an hour. This is the perfect amount of background for now!

stevepotter• 2 months ago

Others have provided details about how it works. I suggest zooming way in on that image and you'll start 'breaking though' the surface and that'll help you get an idea of how it works. Important thing is there is no defined geometric surface ("mesh"). Also important to know is that it's very, very hard to get a good splat without taking a ton of photos at different angles. It's also really, really easy to create a crappy looking splat. But when it's done right, it's a marvel

lubesGordi2• 2 months ago

When you say its very very hard to create a good splat, what do you mean? And what is good? I would say that strawberry is very detailed and its a good splat. I also kind of like the way some of the 'rougher' splats look. I feel like they'd work well in a car racing simulator.

ZeWaka• 2 months ago

I don't know, there's plenty of models these days that generate good splats just from objects at home.

I took maybe 10 pictures of a model I built and threw it at my 3060 during dinner and it came out quite nice.

davnicwil• 2 months ago

is the point of doing it for the artistic value / challenge or are there other benefits of not using a mesh or physical model of the object?

Tade0• 2 months ago

Beautiful.

What I love about gaussian splats is the way they degrade - instead of a hard cutoff or LoD changing spheres into cubes etc., they get increasingly "dreamy" - the basic idea is still there, just less detailed.

Take for example this scene:

https://superspl.at/scene/e721ea7c

If you navigate closer to the trees, things around you become blurry - as if the very fabric of reality unraveled.

scrumper• 2 months ago

I don't know anything about them but it's a cool effect. At least on this strawberry, you're not zooming in but rather traveling closer. I don't see the increasing (made up) detail you'd expect from a zoom, we sort of pop through the skin into an invented interior.

danybittel22• 2 months ago

I like that they are sort of between a photo and a 3D model. Nothing quite like it.

xattt• 2 months ago

Is there a specific name for this “dreaminess” effect?

jl6• 2 months ago

Splattenuation

acc_297• 2 months ago

its funny that sky features like clouds and blue patches end up being fit very close to ground level because there isn't a difference in perspective to cue in the algorithm that the skybox should be tall, I wonder if there is any way to incorporate the fitting algorithm with simultaneous lidar data about true distances of things to allow scenes to be viewed from further up

amelius• 2 months ago

That's what Google Street View should be like more.

0x1ceb00da• 2 months ago

Gaussian splats are huge. I don't think they'll scale to google maps level. It'll be too much data.

stevep98• 2 months ago

They remind me a lot of the 'memories' scene in Minority Report:

https://www.youtube.com/watch?v=arTIRgdEb1g

ACCount37• 2 months ago

Yeah, it's an incredibly cool effect. Reality breaking down into fog and frosted glass and paint smudges and slivers of northern lights and all the dandelion fluff. Even navigation becomes harder and less predictable as coherence recedes.

This feels so much closer to how minds must store and process spatial information than the usual 3D models do.

squidsoup• 2 months ago

You might enjoy some of my art derived from gaussian splats in that case, I've been calling them gaussographs.

https://bayardrandel.com/gaussographs

More recent work on my instagram

https://www.instagram.com/bayardrandel/

danybittel22• 2 months ago

Love these!

ivolimmen• 2 months ago

Wow this is a time killer... ended up here: https://superspl.at/scene/ff1d0393 beautiful!

data-ottawa2• 2 months ago

It’s amazing this runs perfectly smooth on my iPhone 12 mini

That is indeed a very cool scene being about to wander around and still have decent resolution

lopsotronic3• 2 months ago

Ah the timeless joy of falling through the floor geometry.

Seriously though - it's breathtaking.

The first guy who figures out the bridge between splats and dynamism - animation, editing, responsiveness - is going to be one of the immortals of 3d design.

joshvm• 2 months ago

That one has a strange rendering error for me, the trees and horizon are in front of the mill building and the exterior isn't properly rendered unless you are in orbit mode. But my mind was a little blown when i discovered that I could walk up the stairs. It needs shift to run!

The scene desperately needs some clipping on the boundaries. If you use an app like Scaniverse, you can add a bounding box to cull far away points which are often poorly reconstructed.

If you have a newer iPhone with a LIDAR scanner, highly recommended. You can make dolls-house renderings of your house or garden which is surprisingly useful for planning and measuring walls/features.

ramon156• 2 months ago

Imagine if we start designing GPUs around this technology as opposed to vectors. Imagine what voxel engines would look like. Would love a simulated experience or a small scale that theorizes about this.

ovenchips3• 2 months ago

I built PlayCanvas in 2011 to power video games. Here we are in 2026 and it's powering strawberries.

dormento• 2 months ago

Thank you for your service!

This is one of the most endearing things about open source IMHO, the way people can find novel uses for it.

ovenchips3• 2 months ago

I completely agree with you. I'm constantly bowled over by the creativity of the SuperSplat/PlayCanvas communities.

ovenchips3• 2 months ago

For anybody interested, SuperSplat (and PlayCanvas) is open sourced on GitHub: https://github.com/playcanvas

ImJasonH• 2 months ago

I'm really interested to see what folks can do with animated Gaussian splats: https://youtu.be/X8yRlA7jqEQ?si=dXeHa03jO7MTBNLA

The filesize of a 3d animated splat is seemingly very small, and the method enables ~arbitrary FPS. But it seems the setup required to record it is still huge and expensive, which limits its usefulness.

Even with that there are some interesting use cases, eg. I'd love to be able to watch concerts this way, and freely move around the stage and crowd from any angle.

idoco• 2 months ago

Great video. I was about to share it here myself.

ImaCake• 2 months ago

You can do it with a phone camera, ffmpeg, colmap, and opensplat on an m4 macbook air easy enough. I got a nice render of my logitech mouse from it.

chimpanzee2• 2 months ago

Just wow!

As I scrolled through the website, I was even more impressed with this one though!

https://superspl.at/scene/c67edb74

FigmentEngine• 2 months ago

shame the bishop behind looks a bit flat though ;-)

MattCruikshank6• 2 months ago

I just wanted to do a quick size comparison...

If I'm reading Chrome right, that's 171 MB, for the website, and the data.

If I'm doing the math right, that's 40 seconds worth of the bandwidth from Netflix, at its highest rate.

mkmk• 2 months ago

Beautiful and quite neat to 'walk' up into the ceiling and look down. Feels like you're either quasimodo or God, depending on how nuts you are.

ComputerGuru• 2 months ago

This one keeps crashing the browser after it reaches 100%. Safari/iOS, iPhone 13. I was able to navigate and use a few of the other ones linked to from the comments, though. Curious.

busymom0• 2 months ago

I have the same phone and it crashed for me too after reaching 100%

bestouff2• 2 months ago

This doesn't work at all for me (Linux desktop, tried with Firefox and Chrome). I only see "fullscreen-extended blurry thumbnails" of the splats.

slimbuck• 2 months ago

If you can, please check any output/errors on the developer console?

bestouff2• 2 months ago

https://pastebin.com/gyzQDstw

Last lines:

  HTTPS-First Mode: Upgrading insecure speculative TCP connection “http://superspl.at/” to use “https”.
  HTTPS-First Mode: Upgrading insecure request “http://superspl.at/” to use “https”.
  Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://sentry.sc-prod.net/api/302/envelope/?sentry_version=7&sentry_key=d107d06d48c2e0f20554f721048e3faa&sentry_client=sentry.javascript.react-router%2F10.50.0. (Reason: CORS request did not succeed). Status code: (null). 2
  can't access property "messageManager", target is null ExtensionParent.sys.mjs:75:42
      verifyActorForContext resource://gre/modules/ExtensionParent.sys.mjs:75
      recvAPICall resource://gre/modules/ExtensionParent.sys.mjs:1186
      _recv resource://gre/modules/ConduitsChild.sys.mjs:90
      receiveMessage resource://gre/modules/ConduitsParent.sys.mjs:474
  Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://sentry.sc-prod.net/api/302/envelope/?sentry_version=7&sentry_key=d107d06d48c2e0f20554f721048e3faa&sentry_client=sentry.javascript.react-router%2F10.50.0. (Reason: CORS request did not succeed). Status code: (null). 2
  Missing resource in locale fr: devtools/client/toolbox.ftl
  can't access property "messageManager", target is null 3 ExtensionParent.sys.mjs:75:42
  Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://sentry.sc-prod.net/api/302/envelope/?sentry_version=7&sentry_key=d107d06d48c2e0f20554f721048e3faa&sentry_client=sentry.javascript.react-router%2F10.50.0. (Reason: CORS request did not succeed). Status code: (null).
  TypeError: Response constructor: Response body is given with a null body status. Utils.sys.mjs:279:17

probably_wrong• 2 months ago

Works for me with Firefox 140.10.2esr on Devuan 5.

corford• 2 months ago

Works for me on Debian 13, Firefox 140.10.2esr-1~deb13u and Strix Halo gfx

evrimoztamur• 2 months ago

There is a faint sensation of translucency, I wonder if that's an artefact of the process, or if it's the actual optics of the surface layer if the strawberry...

vanderZwan• 2 months ago

Well, at certain angles you actually get very noticeable gaps in the strawberry that are visible when rotating it, but almost invisible when static. I think it's mostly due to that.

danybittel22• 2 months ago

It's an artefact unfortunately. Gaussian splats have no concept of refraction and have a hard time dealing with reflection. Highlights, usually so so. Something I always wrangle.

zokier3• 2 months ago

I wonder if that is somehow related to how you seem to have very strong studio light for the subjects? Somehow the bright light penetrating deeper into the material or something like that

sbarre• 2 months ago

Looking at all the outdoor scenes that you can walk around, I wonder how long until we start seeing this in places like Google Maps/Earth, as a replacement for the low-res 3D renderings we have now.

I guess the number of samples required to generate a GS is the constraint now, but maybe that will get solved.

dudefeliciano3• 2 months ago

rendering them is also non trivial from what i understand, since the millions of indivudal point positions need to be recalculated all the time while moving

kridsdale13• 2 months ago

Turns out, GPUs are amazing at this.

jofzar• 2 months ago

Google already has some splats on google maps,

https://youtu.be/gXug7Kb3p4I

classified• 2 months ago

Impressive, but my poor GPU is melting :)

arnabdey05033• 2 months ago

Very nice. did you segment the images before?

danybittel22• 2 months ago

Yes it's shoot in front of a bluescreen.

arnabdey05033• 2 months ago

Nice.

arnabdey05033• 2 months ago

Any suggestions to capture and reproduce very small details in the object? Something works well for you?

KeplerBoy3• 2 months ago

Can you elaborate why you chose slang-splat over let's say Lichtfeld studio? How does it compare to the other splat-training tools?

danybittel22• 2 months ago

I usually use PostShot.. but the quality was not very good. I want to try LichtFeld but my Graphics Card has too little memory.. so I reached out on twitter, some people ran tests and Mykhailo got some better quality out of it so I took his training. You can d/l the COLMAP dataset for free and try yourself.

artursapek• 2 months ago

ew the bottom is moldy

dredmorbius• 2 months ago

For those unfamiliar with Gaussian Splatting: <https://en.wikipedia.org/wiki/Gaussian_splatting>.

(I'm ... still not sure what I'm looking at on TFA, and whether or not my browser configuration fails to fully present the site as intended.... OK, if all you're seeing is a blurred image of a strawberry, yes, you'll want to enable a bunch of JS resources. I'm using uMatrix, several hosts must be enabled.)

karmakaze• 2 months ago

I like to think of Gaussian Splatting as a stage full of improv actors who are iteratively/concurrently filling details in regions down to pixels until the full picture is painted.

tantalor2• 2 months ago

Really terrible performance in Chrome, I'm getting between 10-15fps.

What's the matter?

jrflo2• 2 months ago

It appears to be rendering locally, my fans started spinning up when I was wandering through another image on the site.

tantalor2• 2 months ago

Where else would it render??

duckerduck• 2 months ago

Makes me wonder if we'll ever see a video game where the world is created by set designers irl.

lubesGordi2• 2 months ago

Sim racing is at least kind of like that.

MattCruikshank6• 2 months ago

I know feelings about AI are mixed. But when AI can dream up gaussian splats in real time, from a prompt, and do refinement as you get closer to things... That's going to be pretty bonkers.

perching_aix• 2 months ago

That's kinda what NERFs are (neural radience fields). They actually preceeded this Gaussian story, with Gaussians coming in and outperforming them. Maybe they'll merge later for something even better, I don't know enough about them.

MattCruikshank6• 2 months ago

Sure, but NERFs were trying to match your input photos and poses, not some arbitrary prompt, if I understand correctly.

cubefox5• 2 months ago

NERFs have significantly higher image quality than 3D Gaussian Splatting or more recent similar techniques, though they are much slower to render.

notdefio• 2 months ago

This sounds like it could be a great concept for a future sequel to LSD: Dream Emulator

yard2010• 2 months ago

If I'm not mistaken that is the inspiration for one of Alt-J albums

Lerc3• 2 months ago

This will be the future of a class of 3d Game. the prompt may not be text however.

An input of a kind of schematic representation of what the designer wants would be better. It may resemble a storyboard or a collection of organised notes that large projects tend to already use.

Fully generative could probably do some cool things, but people will still want to bring their peronal vision to life.

MattCruikshank6• 2 months ago

Yeah, when you describe that, I picture Wave Function Collapse to generate a map schematic... And then a text prompt, and some style photos the designers want it to match.

satvikpendem• 2 months ago

Curious, why wouldn't the future be a full world model like Google's Genie? It just renders every pixel so someone could still make their vision come to life via a prompt too.

basch• 2 months ago

I could see a kind of fun game / design tool / worldbuilding where you get a blurry world and you describe what you are seeing, and it comes into focus. The game world, mechanics, aesthetic, and playstyle build as you form your view. A sort of fog of war meets rorschach game.

corysama• 2 months ago

We are currently at real-time video generation that can be converted to splats or meshes.

https://research.nvidia.com/labs/sil/projects/lyra2/

buibuibui• 2 months ago

How can I start creating Guassian Splat of my environment with my 360 camera? Is it possible to do that with local software?

Centigonal• 2 months ago

This is like a beautiful little miniature. It's cool to see gaussian splatting applied to a detailed small thing versus a big scene.

I have a question about perhaps the most boring aspect of this strawberry: the license. you write, "You can download it under CC BY license, but attribution is appreciated rather than required." IANAL, but I'm pretty sure you can't license your work CC-BY and then waive the BY requirement in the description. Rather, you'd have to license it with something more permissive like CC0 and request attribution if you want attribution to be optional. Is that right?

RobotToaster2• 2 months ago

I'm pretty sure it's allowed, just as saying "do what you want with it" is an informal license, it's just a little pointless.

danybittel22• 2 months ago

That's what I thought too.. supersplat has no way to set it to CC0 otherwise.

CobrastanJorji• 2 months ago

It's their content. They can do anything they like.

Sort of. There are countries like France where attribution rights are fundamentally inalienable, and the author can always demand attribution, even after forever waiving the right to attribution. But in the US, the party who benefits from a contractual provision can generally choose to ignore or forfeit that provision. Whether it's still called the "CC BY" after that is debatable, since the whole point is attribution, but licensing by the CC BY and immediately waiving that requirement seems legitimate to me.

MattCruikshank6• 2 months ago

I want some math Phds to sit down with the Corridor Crew guys and figure out how to make Gaussian Splat reconstruction way better, the way they came up with CorridorKey.

weystrom• 2 months ago

I tried making one, but I couldn't make through the camera position tracking bit, software was super unintuitive. Very interested in gaming applications for this tech, but still waiting for it to be more approachable from a layman's point of view.

ChadNauseam• 2 months ago

One thing you can do with this that works quite well is use it to "decrop" (widen the viewing angle) of a video. This is very useful for stabilization which usually involves cropping. Here's an example: https://x.com/i/status/2051504427287404568

Once they get quicker to train, I expect this to be a popular use of them

sovok2• 2 months ago

Also interesting: https://github.com/apple/ml-sharp

Apples model to generate Gaussian splats from a single image. Takes about 30 seconds on an M1 Pro.

It falls apart once you move too much, but for a little side-wiggling or a second-eye view for VR, it's great. And looks a lot better than the old approach of depth map + vertex shaders that I use in https://github.com/combatwombat/tiefling. But ml-sharp has 2.6 GB weights, a bit too big to run in the browser.

RobotToaster2• 2 months ago

Any idea what kind of vram is needed to run this on Nvidia?

sovok2• 2 months ago

The Python process peaks at about 15 GB, so maybe a 24 GB GPU works. But others seem to have problems wih Nvidia: https://github.com/apple/ml-sharp/issues/84

kridsdale13• 2 months ago

It runs natively on the Photos app in Vision Pro, which shares 16GB of ram with GPU and CPU.

mnorris• 2 months ago

The smallest Nvidia gpu I've run Sharp on is an Nvidia T4 which I think has 16 GB on the chip

ben7799• 2 months ago

Is this thing the basis of what Apple is doing in the Photos app in the most recent OS revisions?

It seems to work a lot quicker than 30s now on iDevices and Macs.

0xWTF• 2 months ago

How did they decide what the inside of the strawberry looks like? Because that seems very incorrect.

db48x3• 2 months ago

The flesh of the strawberry is very slightly translucent. By taking images from many angles, you can derive some information about the interior. This is not a separate step, it is simply the optimizer finding splats that contribute the right amount of color and light at various viewing angles. Of course those splats aren’t really going to look right to anyone who has ever eaten a strawberry, because they are only derived from the input images and not your past memories of a real strawberry.

You’ll also see the same type of problems in any incomplete part of any scene. Go poke around any of them and you’ll find places where there wasn’t enough information to make a satisfying reconstruction. For example, the back of the moon <https://superspl.at/scene/2ac8f423>, the fridge in the coffee shop <https://superspl.at/scene/6a0c3ccf>, underneath the footbridge in the forest <https://superspl.at/scene/23ebe85c> (or indeed anything in the distance), etc, etc.

lightedman2• 2 months ago

A Youtuber that records jookin (a mid-South form of dance) uses Gaussian splats for his videos to bring the dancers out into the forefront and hold center stage, it's a neat trick.

https://www.youtube.com/watch?v=k0MGoFaIiWs - WARNING - heavily adult lyrics and a loud starting "MOTHERFU*AAAAAAS" right off the top.

hamburglar• 2 months ago

What makes you say this is using Gaussian splats? It looks like simple motion-based cropping to me.

lightedman2• 2 months ago

Because I know the video producer and have talked about this in-depth with him.

evan_• 2 months ago

That doesn’t really look like Gaussian splats to me- but this video, Helicopters by A$AP Rocky, uses the technique well:

https://youtu.be/g1-46Nu3HxQ?si=y_u257DzgOg2QV83

divan2• 2 months ago

Does anyone know if it's already possible to build gaussian splat of the person that moves/rotates from the single camera? (I.e. to use sequence of frames to reconstruct occluded parts of the body for other frames)

thrownthatway2• 2 months ago

I watched this 1 month old video two days ago:

https://youtu.be/X8yRlA7jqEQ

It kinda splatted my mind.

As I understand it, Gussian Splats aren’t a method of constructing missing data in the sense you’re asking here.

But there are other, well established, methods of generating missing data in convincing manner, that are beyond my field of expertise or interest to be able to repeat here.

With the added benefit that if I’m wrong, being wrong can be a great way to spur discussion 8)

divan2• 2 months ago

There is definitely some body of research around what I'm asking [1] [2]. Just curious if someone have a good grasp on the current state of it.

[1] https://openaccess.thecvf.com/content/CVPR2025/papers/Wu_Sin...

[2] https://arxiv.org/abs/2409.04196

ArekDymalski• 2 months ago

As I have learned about Gaussian Splatting just a few weeks ago, I have (perhaps funny/naive/stupid) question: is there any progress or at least theoretical chance to have dynamic lighting?

aruametello• 2 months ago

out of the box, I imagine that surfaces can be lit, but probably not shadowed correctly. (structures aren’t solids, more like particles in 3d space)

it could look like the real-time lighting of an old game engine on rather modern assets. (quake 2-3 era)

or perhaps some "occlusion pre-pass" could be done to create a voxelized sparse volume from the splats that set a "voxel opacity value" for each to absorb light? (not far from how prebaked GI works nowadays)

note: not an expert on rendering, just a nutjob that did stuff in opengl in the old days.

hellohello22• 2 months ago

There can be some issues with shadowing yeah, especially if you render with splatting/rasterization, but its fine if you raytrace I think.

hellohello22• 2 months ago

There are some works on doing this directly e.g. https://arxiv.org/abs/2601.23065 but getting accurate materials is a challenge for anything more than diffuse.

AI-based relighting will no doubt start working soon.

wren6991• 2 months ago

Noting the permissive license, could we be witnessing the birth of a new Utah teapot or Sponza atrium?

danybittel22• 2 months ago

Oh, that would be amazing! The photos are also available and some people definitely take it for a test ride. However.. This dataset with the stacking is far from generic.

porphyra• 2 months ago

That new Laowa 180mm macro lens is amazing. So sharp, free of chromatic aberrations, compact, and I like the long working distance and reduced perspective distortion that the 180mm focal length offers.

stuxnet79• 2 months ago

Word of warning to mobile users, this website completely crashed my Firefox instance on Android.

NoSalt• 2 months ago

Is it me, or does the backside of that berry not look too good?

ted_dunning• 2 months ago

If you don't like the backside, check out the inside!

varispeed2• 2 months ago

Thanks for the reminder how fucked up British government is. Can't run VPN here. (imgur is not available in the UK thanks to those authoritarian twats called Labour)

danybittel22• 2 months ago

I also have them on x: https://x.com/DanyBittel/status/2055624819941483005 I thought direct image links are more welcomed here.

ziofill• 2 months ago

What do you mean you can’t run a VPN?

varispeed2• 2 months ago

Can't install anything on this particular machine.

BobbyTables2• 2 months ago

Looks like it’s already going bad…

painted-now• 2 months ago

It definitely looks impressive.

But something looks off: the red area around the "seeds" is pushed towards the center of the strawberry - or that at least the outer most layer is somewhat transparent and some deeper layers are visible.

danybittel22• 2 months ago

Those are artefacts. Splats are not perfect around reflections.

monkpit• 2 months ago

I’m impressed by Gaussian Splatting and I love these kind of demos, but I have a noob question - can they respond to lighting?

dagmx• 2 months ago

Not traditional Gaussian splats since they have their lighting baked in but there are alternate forms that have the ability to do so but largely in academia or very specific use cases

vipshek• 2 months ago

This took me down a rabbit hole that led to this company, doing Gaussian splat videos: https://www.4dv.ai/. Fascinating.

lucb1e• 2 months ago

If you just see a blurry image and nothing loads or happens, check the javascript console if it says "WebGL not supported"

thatxliner• 2 months ago

it's weird at the bottom

socalgal2• 2 months ago

4meg: https://sketchfab.com/3d-models/strawberry-dd6a4248076145448...

48meg

Splats make pretty pictures but they are 10x the data for pretty much anything I've seen.

3gig for this one: https://superspl.at/scene/8429e5e2

eckelhesten• 2 months ago

I’m curious to why not all modern PC/console game developers use this technology to create realistic graphics in their games?

If my old phone can render it with fairly high frame rate, I’m sure a full game with realistic graphics would work well on a mid/high end PC.

steve_adams_86• 2 months ago

I’m not sure if the same limitations apply today, but when I last looked into it:

1. Lighting is baked in so they don’t fit well in dynamically lit environments

2. Splats aren’t as suitable for bodies you’d animate, like meshes are. They also don’t work well for very thin or sharp surfaces in general

3. Splats are pretty memory-hungry so large scenes would require better hardware than consoles can offer

These might not be as true today, and I can’t recall exactly when I read this. Probably 3 years ago or so. I recently read they’re making their way into games, so it’ll happen as the kinks are worked out.

account42• 2 months ago

500
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navigator.sendBeacon is not a function

And it shouldn't be one.

FrogHire• 2 months ago

This is so beautiful. Am I crazy for saying I kinda wanna cry seeing this strawberry?

Show HN: Gaussian Splat of a Strawberry

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