Questions tagged [3d]
For challenges involving either three-dimensional graphics, three-dimensional geometry or spatial data structures in three dimensions (e.g. octrees).
28 questions
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3 Dimensional Minesweeper
3-Dimensional Minesweeper
I've been on a minesweeper kick for a while, but all the questions are for 2 dimensions (or that one in 1D). But 2D is 2 easy!
Challenge
Write the shortest code possible to ...
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3D Hide & Seek Word Puzzle
Challenge
Create a 3D word puzzle where the cube's dimensions match the length of the input word. The uppercase word (A-Z) must be validly placed within the cube in one of the fixed orientations: ...
- 2,309
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Generate the vertices of a geodesic sphere
As in this challenge, the task is to generate the vertices of a polyhedron. The polyhedron here is the one obtained by dividing a regular icosahedron's triangular faces into smaller triangles so that ...
- 871
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How spherical is my ellipsoid?
Define the (unnormalised) Willmore energy of a surface as the integral of squared mean curvature over it:
$$W=\int_SH^2\,dA$$
For surfaces topologically equivalent to a sphere \$W\ge4\pi\$, and \$W=4\...
- 4,739
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CGAC2022 Day 22: Present stack headache, Part 2
Part of Code Golf Advent Calendar 2022 event. See the linked meta post for details.
Santa has a bunch of presents wrapped in cuboid boxes of various sizes. As his sled flies above a chimney, a stack ...
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CGAC2022 Day 21: Present stack headache
Part of Code Golf Advent Calendar 2022 event. See the linked meta post for details.
challenge idea by emanresu A
Santa has a bunch of presents wrapped in cuboid boxes of various sizes. As his sled ...
- 79.2k
21
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18
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Convince me Gabriel's Horn is possible
From Wikipedia, Gabriel's Horn is a particular geometric figure that has infinite surface area but finite volume. I discovered this definition in this Vsauce's video (starting at 0:22) where I took ...
- 1,219
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I give you ascii-art, you make it pseudo-3d
Do you know the optical effect of a tridimensional hand painted whit horizontal lines?
Examples
This challenge consists of making something like that effect with ascii, and transforming one 2d input ...
- 1,406
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26
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Print a 3D shape
Write a program or a function to print the following cube (if you allow me to call it so) in different sizes:
...
- 1,091
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Ellipsoid surface area
Related: Ellipse circumference
Introduction
An ellipsoid (Wikipedia / MathWorld) is a 3D object analogous to an ellipse on 2D. Its shape is defined by three principal semi-axes \$a,b,c\$:
$$ \frac{x^2}...
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Counting painted sides of cubic shapes
Sandbox
Many of us have seen math problems where a shape made of unit cubes is dipped in paint, and the answer is the number of painted sides. We'll generalize that problem in this challenge.
Input
A ...
- 2,635
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Reconstruct a 3d arrangement of cubes from two of its projections
Setup
Take the following 4x4x4 cube along with a 2D view of 3 of its faces, with a common 1x1x1 cube highlighted:
The arrows ...
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Golf Lathe Machine
You probably know what a Turing Machine is but do you know what is a Turning Machine (lathe)?
Ok you already know.. and what about a Golf Turning Machine ??
Ok I tell you..
A Golf Turning Machine is ...
- 11k
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ASCII TURNED SHAPE
How can we depict a turned shape simply and nicely using ascii characters in 3D space?
I suggest this method :
Instead of a circle we use a square rotated by 45° for the cutting section so that we ...
- 11k
15
votes
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answers
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Binary self-rotation
Given a binary 3D array, for each layer, cyclically rotate up each of its columns as many steps as indicated by the binary encoding of the columns of the layer above it, and then cyclically rotate ...
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