GSWT: Gaussian Splatting Wang Tiles
yunfan.zone64 points by klaussilveira 5 hours ago
64 points by klaussilveira 5 hours ago
This is very cool. I wonder how well it could be combined with Wave Function Collapse (or the Nested variant)
The in-browser demo is very cool! It's not clear from the linked page, but the GitHub repo[0] includes links to sample tile datasets that can be used for the demo.
Very cool, performance is abysmal at least on my m1 pro mac though - only getting ~2fps.
There's no link to the paper, so I can only infer, but, if I understand correctly, this is a very simple idea: take a single Gaussian splat "tile" and find a cut when two copies are placed near each other and overlapping, using dynamic programming to vary the size of overlap and where the cut should be. Have a variety of cuts to break a uniform tiling (the Wang tiles part) and now you have different tiles with different nearest neighbor constraints that you can use to tile the plane.
Probably a lot of details to be worked out in how to stitch Gaussian splats together but I imagine it's pretty do-able.
I think one of the problems with Gaussian splatting is generating content. You can take a static picture of something but it's hard to know how to use it for interaction. This is a way to generate 3d textured sheets, like sunflower fields, walls, caves, etc.
In my opinion, great idea.
You could always make cinema quality environments in a traditional pipeline and render the splats offline for later realtime consumption.
Crazy to see 2 of my niche interests interact. Great idea, you could extent the idea to use example based texture synthesis, such as Image Quilting https://www.merl.com/publications/docs/TR2001-17.pdf
Is it possible to make them skew(the right word here ?) in some way so that they could appear to blow in a breeze?
Yes just like there are shaders for the same thing with mesh-based grass. This repo already has some animation abilities: https://github.com/sparkjsdev/spark?tab=readme-ov-file#featu...
Most implementations of 3d gaussian splats are static. They are based on pointclouds and not polygons. As these are captured with images and generated from them, the process has no semantic understanding of its content. There is no technical way to rig each flower or move vertices like in traditional 3d animation. It is mainly a pointcloud with no segmentation.
But there are projects working on the semantic part, which could open a way to animate the detected objects individually in future.
I i wasn't thinking individual flowers, though that would be nice, but maybe whole tiles somehow
For something as simple as this, you could probably just move the splats around with
(x_hat*sin(y*t) + y_hat*sin(x*t))*exp((z_l-z_h)/2*z_h)
Or if you want to be more advanced, generate some curl noise and use it as a prefactor instead of x,y inside the sin(). And include the corresponding up-down motion as the stalks are constant length.
It is possible to import a 3d gaussian splat into houdini and animate it there. https://m.youtube.com/watch?v=3u9SAmr61gA
The gaussian splatting never cease to amaze me. I wonder if it would be OK to proceduraly (not by LLM) generate natural worlds for video games with that...
If you can't be bothered to make it, I can't be bothered to buy it, especially when it looks like blurry dog shit.
Procedurally generated game worlds have been a thing since video games started, some of them even garnered some popular appeal, like a lego-looking one about crafting mines or something
Can we get a demo of this with a wind modifier added. My goodness! I can’t wait to explore virtual worlds with this kind of grass/foliage detail.
Everybody Wang Tiles tonight.
But seriously, I didn't realize I wanted this. I was hoping to experiment with just repeating the same tile. This gives me hope that other people will make these techniques approachable.