Questions tagged [3d]

For challenges involving either three-dimensional graphics, three-dimensional geometry or spatial data structures in three dimensions (e.g. octrees).

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32
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10answers
11k views

3D: Discrete Dogfighting Duel (Now open to non Java submissions)

UPDATE: isSuicidal() was added to the plane class, this allows you to check if a plane is on an irreversible collision course with the walls!! UPDATE: updateCoolDown() separated from simulateMove() ...
21
votes
18answers
4k views

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 ...
35
votes
6answers
3k views

Check if three letters can form a "Godel-Escher-Bach cube"

This question is inspired by the cover of the book "Godel, Escher, Bach": The challenge here is to write a function that tells if three given letters can produce a 3D sculpture that can be read from ...
16
votes
7answers
1k views

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 ...
21
votes
8answers
875 views

Wrap a seasonal present

Task Given a wrapper element and a non-jagged 3D array, wrap the array top, bottom, and all-around. You must handle both character and numeric data, but the wrapper and the present will have the same ...
18
votes
2answers
1k views

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 ...