For several years, on and off, I have dabbled in 3D printing. To download and order printed items is something trivial these days, however my interest is in the [relatively simple] 3D modeling formats in use. I started out using SketchUp but eventually found it to be restrictive. The only artifact remaining from those days is this compiled X3G file, ready to print on a FlashForge printer (note: I have the older FlashForge with a frame made out of wood; your results on newer models currently available may vary).
Compiled X3G file for printing a ship on a FlashForge printer (Side note: never trust compiled code. You have been warned. Read this classic write-up for reference.)
My next step was to generate STL files directly. Building a surface is relatively simple, and you can use the following C code to try that out.
C code to convert a surface height matrix into a STL file for 3D printing (read the code for usage details)
Lately I like describing shapes in the OpenSCAD language which has support for set operations (intersect, subtract, union, etc.) as well as loops etc. Here is the code to generate a brick compatible with the Lego Duplo line. The brick is hollow to allow for some further experimentation that a will not go into right now.
Batch AVI to MP4 on Windows
Way back when, in the days when you had to line up and wait in order to work on a computer in Bulgaria, some teenagers decided to build an adventure game. Here it is, direct from the archives. (Runs in 16-bit MS-DOS mode. Mostly in Bulgarian. Once in the interactive part of the game, to quit press Esc, select "Quit", then press "D"---not that you would ever want to leave...)
Hovering Castle game
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