Alexander Shendi<p>A lone red tetrahedron on a dark blue background. Left: C-Program using OpenGL 3.3 (340 loc), Right: PC-Scheme using BGI Graphics on <a href="https://rollenspiel.social/tags/Pocket386" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pocket386</span></a> (~200 loc + ~200 loc matrix lib).</p><p>OK, I cheated for #2. I sorted the faces by depth by hand.</p><p><a href="https://rollenspiel.social/tags/PCScheme" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PCScheme</span></a> <a href="https://rollenspiel.social/tags/Geneva" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Geneva</span></a> <a href="https://rollenspiel.social/tags/OpenGL" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenGL</span></a> <a href="https://rollenspiel.social/tags/BGI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BGI</span></a> <a href="https://rollenspiel.social/tags/dos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dos</span></a><br><a href="https://rollenspiel.social/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputing</span></a></p>