A simple program for reading STL 3D models
I wrote this for a speed comparison between Java, Go, and C++. Each one has a basic and smart STL loader. The basic simply parses the file and stores it as is: a list of faces each containing a normal and three points in space. The smart loader keeps the points in a separate array and has the faces point to them to ensure uniqueness.
Here are some results for reading in an stl file with 295,645 faces and 149,281 unique vertices:
| Language | Basic Parse (ms) | Smart Parse (ms) | Repo |
|---|---|---|---|
| C++ | 72 | 170 | here |
| Go | 758 | 1,535 | here |
| Java | 344 | 413 | private |
| Javascript | 217 | dunno | sample |