Finally finished with the base of my road placement. Still some placeholder assets, but one step at a time. Thank you @boristhebrave.bsky.social for sylves, very easy to work with :) #indiedev #madewithunity #gamedevs

Why? There wasn't enough color contrast between cells without adding the border.

I've put the formulas elsewhere, but yes, it's basically making distances a bit shorter/longer in a random direction per-cell.

I think the border of the cells ends up piecewise parabolas.

There's a lot to experiment here, this is just random scales and rotations, but you could do other things.

The matrices are created something like:
T = [[rand_range(0.5, 1.5), 0],[0, rand_range(0.5, 1.5)]]
T = rotate(T, rand_range(0, 2*PI))

Then distance is
dist = (T @ (pixel_pos - point_pos)).magnitude

Note that M = T.transpose @ T for the way those slides expressed it.

Implicitly. This (and several other tweets) are just the result of taking an interesting idea and making a quick standalone generator using Cursor, and don't tie into my other work.

Finding an algorithm for the shapes seems tricky.

Yes, sorry, it's *anisotropic*, I got it wrong.
Yes, I pick a random scaling between 0.5 and 1.5 for each axis, then a random rotation. The points are evenly spread across the image. The maths works like those slides, though I came up with the idea and name independently.

Isotropic Voronoi cells.

I was trying to get a partition that feels a bit like how fields are laid out in the English countryside, it's not too far off.

Temperature is widely used in machine learning, but unexplored in procedural generation circles.

It's an extremely handy global control over the generation's luck/creativity/variance.

Article with interactive demo: www.boristhebrave.com/2025/05/07/f...

The A/B Not Taken Thank you for your interest in FrostGPT™. Rate which response you like the most? Response 1 Two roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth; Then took the other, as just as fair, And having perhaps the better claim, Because it was grassy and wanted wear; Though as for that the passing there Had worn them really about the same, And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day! Yet knowing how way leads on to way, I doubted if I should ever come back. I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I— I took the one less traveled by, And that has made all the difference. Response 2 Two paths diverged in an autumn wood, And sorry I could not journey both And be one wanderer, long I stood And gazed down one as far as I could To where it curved in the undergrowth; Then saw another, as equally fair, And having perhaps the stronger claim, Because it was verdant and needed wear; Though as for that the passing there Had worn them truly about the same, And both that morning equally lay In leaves no foot had trodden black. Oh, I saved the second for a future day! Yet knowing how path leads on to path, I questioned if I should ever come back. I shall be sharing this with a sigh Somewhere decades and decades hence: Two paths diverged in a wood, and I— I took the one more traveled by, And that has made all the difference.

With apologies to Robert Frost.

I've updated the page with symmetry filtering

Exploring Rectangle Subdivisions Last week, I saw a talk on Vuntra City, a procedurally generated city with a fully explorable city. Developer Larissa Davidova explained that she settled on using Recursive Subdivision for the city…

Back to classic proc gen today. What ways are there of subdividing a rectangle? I enumerate the *irreducible* subdivisions, which imho are the most visually interesting.

www.boristhebrave.com/2025/05/03/e...

Running Tracery bots with LLMs Tracery bots were a fun, simple, way of making generative texts. They are basically an easy way to specify generative grammars via a simple JSON file format. There used to be a horde of fun little …

New Article: I'm still investigating the intersection of AI and classical proc gen. This time, I look at text generation with Tracery combined with LLMs.

www.boristhebrave.com/2025/03/08/t...

After decades of general python terribleness for packaging, I'm discovering uv is actually good?
- fast
- does things sensibly (defaults to npm style .lock files)
- not dogmatic

Generating Tilesets with Stable Diffusion Recently I’ve been playing around more with gen AI techniques. I thought I’d try to generate a set of tiles that all connect together. It’s harder than it sounds – Stable Di…

New article, I tried using Stable Diffusion to make tiles for games.

The trick is to generate all the tiles in parallel, so they can share edge information from each other.

www.boristhebrave.com/2025/02/04/g...

They are also easier to understand.

Also there's a lot of art in crafting a generator. Popular games tend to have those ineffibles done really well, it's hard to learn from other sources what works and what does not

Love this. I've decompiled a few games, you can learn a lot from even simple ones. Get in touch if you get stuck.

I suspect # means equals or not equals. It's not an operator in the manual, so I suspect it's a formatting glitch.

I'll be at @unireps.bsky.social this Saturday presenting a new experimental pipeline to visually explore structured neural network representations. The core idea is to take thousands of prompts that activate a concept, and then cluster and draw them using MultiDiffusion. 🧵👇

It would look deeper if it was a DAG including all abstract base classes that are duck-typable from each type.

I felt like writing a more personal blog post today.
www.boristhebrave.com/2024/12/24/b...

Trying with AddForce seems to rule it out, yes. I'm stumped, sorry.

How is your car controlled.
My guess is still that the forces the joint is applying are not enough to overcome friction. So it doesn't rotate, except for in an early clip where you jerk the rope.
I think it's translating due to some other reason than joint forces.

Is it actually applying force at all? Do you see the velocity increase? What happens without ground friction.

It looks like it might be only moving due to position correction.

Each pair of red lines is one possibility, and the orange ones are the selected ones? You pick tiles in priority order, not randomized?
Looks neat

The superior solution is to have multiple settings files, which can override each other. That means you don't have to guess how others want to use your tool.
See every IDE ever.

Ha, I returned to my #procjam 2023 project which I gave up because it wasn't working, made a one line change, and now it does.

www.boristhebrave.com/2023/12/03/g...

If only such good homages were inevitable! I'm still waiting for the equivalent in the point and click genre.
But yes, it's situated more tightly in existing culture than HS.

I was gonna say Undertale, but Homestuck is unquestionably weirder and bigger impact (at least, on the cosplay metric).

How do you cope with streaming? It's a platform where you cannot go back and fix your mistakes.

So far, I've implemented 6 different grids using this system. They're all "game ready" - they efficiently support all operations you are likely to want do do, such as adjacencies or cell picking.

Let me know what tilings you'd like to see.

Substitution Tilings I’ve been working on adding aperiodic grids to Sylves. Aperiodic tilings are made tilings are made of a fixed set of tiles, rotated and translated to fully cover the plane.But they are not pe…

I've written up a new article on my implementation of aperiodic substitution tilings for my grid library, Sylves.

www.boristhebrave.com/2024/11/30/s...