Overview This entry shows how to make five intersecting tetrahedron, using Blender and sverchok add-on. When you search for "Five intersecting tetrahedron blender", you may find some tutorials on how to make it with Blender 1 . Those pages…

Overview To make Seifert surfaces, SeifertView1 is one of the most powerful tool. The algorithm to make the surface is written in related document2 (and in this blog entry, mainly chapter '2.3 Seifert Surfaces' will be referred). If you ha…

Updated (Aug. 23, 2020) This rigid origami node was already merged in sverchok's master (Aug. 20, 2020). So you can use the rigid origami node (select modifier change -> rigid origami from sverchok's node editor menu) without loading this …

Updated (Aug 23, 2020) This script node was already merged in sverchok's master. So you can use rigid origami node in sverchok (select modifier change -> rigid origami) without using this script node. And when this node was merged, some so…

Overview When using 3D-CG tools like Rhino + Grasshopper or Houdini, finding articles about 'origami' is relatively easy. In such documents, the Miura fold1 (Miura-ori) is often mentioned. Currently (June 2020), however, I'v not been able …

OverView I read about Wikipedia's Hopf fibration1 page. This graphic model is really beatiful. After some research, I found a blog https://nilesjohnson.net/hopf-production.html, offering mathematical details, a fibration animation in a You…

OverView I wrote about creating Calabi Yau Manifold with python in my previous post1 . After that, I found an article2 about another version of this manifold having torus-knot-like shape. In my previous entry, I made the original manifold …

Overview I got interested in manifold (in math)1 after creating some minimal surfaces and implementing 4d rotation in my previous post. especially, Calabi-Yau manifold2 looks beautiful. After finding some websites to modeling this, I tried…

OverView I already wrote about 4d rotation in my previous post1. After that, I found some articles about Tesseract (four-dimensional analogue of the cube)2 . Also, some people have already posted Youtube videos3 explaining it using some ma…

Updated (Nov. 6, 2020) Four-D rotation script for Animation nodes has been uploaded in my gist. https://gist.github.com/asahidari/b4714563570e7ce1c27b1bb61b9a727d Image below is how to use the script. OverView In my previous writing*1 abou…

Overview When Searching for Riemann's minimal surface, you can find many drawings generated in Mathematica. But it seems difficult to find the way to create the surface in another environments. So I tried to make another example,using pyth…

Overview When writing some python code in Jupyter and displaying 3d surfaces using matplotlib, I sometimes want to export the surfaces into STL (stereolithography) files to use the 3d models in other software(Blender, Meshlab, etc.). Altho…