DeBroglie v0.1

2018-10-062021-05-31 | Boris

Introducting my latest project, DeBroglie.

DeBroglie is a C# library and Windows command line application implementing the Wave Function Collapse algorithm with support for additional non-local constraints, and other useful features.

Wave Function Collapse (WFC) is an constraint-based algorithm for which takes a small input image or tilemap and procedurally generating a larger image in the same style, such as.

DeBroglie is stocked with loads of features to help customize the generation process.

Basically, you can use it to generate cool tile based stuff.

Barycentric Perlin Noise

2018-05-122021-11-12 | Boris

Perlin noise is a classic procedural texture. It gives a wavy grayscale image, that has all sorts of uses in computer graphics. Commonly, it’s used to blend two textures together.

But what if you want to blend three or more textures together? Well today I have the answer.
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Random Paths via Chiseling

2018-04-282022-03-20 | Boris

I went over a previous project to randomly generate paths between points and came up with a much more efficient and versitile algorithm.

(EDIT: In 2022 I found an even better way.)

The algorithm is simple. Start with the entire area covered in path tiles, then and remove tiles one by one until only a thin path remains. When removing tiles, you cannot remove any tile that will cause the ends of the path to become disconnected. These are called articulation points (or cut-vertices). I use a fast algorithm based on DFS to find the articulation points. I had to modify the algorithm slightly so it only cares about articulation points that separate the ends, rather than anything which cuts the area in two. After identifying articulation points it’s just a matter of picking a random tile from the remaining points, and repeating. When there are no more removable tiles, you are done. Or you can stop early, to give a bit of a different feel.

I call it “chiseling” as you are carving the path out of a much larger space, piece by piece.

See on github .
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Dual Contouring Tutorial

2018-04-152021-11-12 | Boris

How to create a sharp mesh from a function without even trying

In part 1 and part 2 of the series, we looked at the Marching Cubes algorithm, and how it can turn any function into a grid based mesh. In this article we’ll look at some of the shortcomings and how we can do better.

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Marching Cubes 3d Tutorial

2018-04-152021-11-12 | Boris

In the first article I showed how the Marching Cubes algorithm works in 2d.

In this tutorial, I cover how it can be extended to 3d.
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Marching Cubes Tutorial

2018-04-152021-11-12 | Boris

In Minecraft, you can dig in any direction – removing a block at a time with well defined edges. But other games manage to destruct terrain smoothly, without all the blockiness of Minecraft.

The following tutorial in Marching Cubes, a technique for achieving destructible terrain, and more generally, creating a smooth boundary mesh to something solid. In this series, we’ll cover 2d in this first article, follwed by 3d in the next , and Dual Contouring in the third. This last is a more advanced technique for achieving the same effect.

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