# presenting these files .

## this https directory
- [current directory](.) .

## HTML documents .
- the-star-tetrahedron : <https://www.cosmic-core.org/free/article-46-geometry-platonic-solids-part-7-the-star-tetrahedron/>

## Blender3D for ".blend" files .
- download and install to use ".blend" files <https://www.blender.org/download/> .
- Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, and video editing.
Blender is a public project, made by hundreds of people from around the world; by studios and individual artists, professionals and hobbyists, scientists, students, VFX experts, animators, game artists, modders, and the list goes on.

## this https directory
- [current directory](.) .