## glTF
Graphics Library Transmission Format. An open standard developed and maintained by the Khronos Group, it supports 3D model geometry, appearance, scene graph hierarchy, and animation.[4] It is intended to be a streamlined, interoperable format for the delivery of 3D assets, while minimizing file size and runtime processing by apps.[4][6] As such, its creators have described it as the "JPEG of 3D." See https://en.wikipedia.org/wiki/GlTF  File suffix: *.gltf and file composition is JSON or Text with references to a binary file of same name.

## GLB
Binary form of glTF.

## JSON
JSON (JavaScript Object Notation) is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of name–value pairs and arrays (or other serializable values).  See https://en.wikipedia.org/wiki/JSON.

## Perl
A programming language, often used by exceptional programmers.  See https://en.wikipedia.org/wiki/Perl

## STL
A file format native to the STereoLithography CAD software. Triangle mesh model used for 3D printing.  See https://en.wikipedia.org/wiki/STL_(file_format), see also https://en.wikipedia.org/wiki/Stereolithography.