W:Blut » work in progress http://www.wblut.com Experiments in generative graphics Tue, 13 Dec 2011 18:12:26 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 W:Blut http://0.gravatar.com/avatar/f53eecb68a71cc8113e72e1e53c94f7d.png?s=48 http://www.wblut.com Obsessive polyhedron disorder http://www.wblut.com/2011/04/30/obsessive-polyhedron-disorder/ http://www.wblut.com/2011/04/30/obsessive-polyhedron-disorder/#comments Sat, 30 Apr 2011 18:55:31 +0000 Frederik Vanhoutte http://www.wblut.com/?p=1516

The last few months hemesh has evolved, you can track some of it on my Flickr photostream. The two latest additions are new polyhedra and a more robust wireframe generator. Use ‘+’ and ‘-’ to zoom in or out.

A special mention to David Marec who provided me with the coordinates and connectivity data of the Archimedean and Johnson solids.

The joints in the HEM_Wireframe modifier are calculated as convex hulls of the strut endpoints. I reverted back to John Lloyd’s QuickHull3D pack­age for this. My own HEC_ConvexHull still has some issues with degeneracies which could lead to faulty meshes.

The image links to the OpenGL version. A P3D version can be found here, hopefully this fixes the problems some of you experience.

]]> http://www.wblut.com/2011/04/30/obsessive-polyhedron-disorder/feed/ 8 Voronoi fractal 3D: work in progress http://www.wblut.com/2010/03/08/voronoi-fractal-work-in-progress/ http://www.wblut.com/2010/03/08/voronoi-fractal-work-in-progress/#comments Mon, 08 Mar 2010 21:13:10 +0000 Frederik Vanhoutte http://www.wblut.com/?p=1008 Click here to view the embedded slideshow.

]]> http://www.wblut.com/2010/03/08/voronoi-fractal-work-in-progress/feed/ 4 Inside I: playing with geometry http://www.wblut.com/2009/07/13/inside-i-playing-with-geometry/ http://www.wblut.com/2009/07/13/inside-i-playing-with-geometry/#comments Mon, 13 Jul 2009 19:57:33 +0000 Frederik Vanhoutte http://www.wblut.com/?p=845 insideI Inside I

Sometimes you get caught up in technical stuff and forget to have fun. Greatly inspired by Michael Hansmeyer, I set out building a generic mesh class that would allow me to experiment with subdivision algorithms.

I found what I needed in the half-edge mesh data structure. Un/Fortunately my quest for 3D Voronoi led me astray. I got some results but writing a reliable algorithm to make a planar cut of a mesh turned out to be a major headache. I stuck to floating numbers and rounding errors kept coming back to bite me in the code. This was late April…

Now it’s mid June and I’m stilling pushing the same code around. Ok, real life kept interfering, but still… more than 2 months with no spielerei. Yuck.

Click the image on the left to go to the applet and see how far I got. The code provided is everything I have up to now and should be considered something–in-progress. I’m probably pausing this for a while. Note to self: I already have a job, doing this should be fun :) .


]]> http://www.wblut.com/2009/07/13/inside-i-playing-with-geometry/feed/ 0