At FMX 2017 Entagma had the pleasure to talk as part of “Houdini Day”. Among other things we explained how to create a propagation growth solver. Here we’ll show how to build this setup. We introduce the concept behind propagation growth and implement the solver in VEX. It is point based although one might want to implement it directly in volumes. The point approach is simpler to tackle, though.
Dense packings of objects onto surfaces always look stunning. There are many analytical algorithms out there to compute such a packing. In this video we’ll explore a simulation based approach to achieve a dense packing of particles with varying radius. This is more versatile and easily allows for a nice packing animation.
Last time I announced a second part to the ripple solver tutorial. And here it is! This time, I rebuild the ripple solver setup by using a SOP solver to update the simulated geometry. Then I show you how to vary the wavespeed spatially. And finally I create an enclosed polygonal body from the simulated grid to be able to use a absorption shader on it.
The nice thing about Houdini is its versatility. Not only does it offer DOP solvers for fluids, RBDs and cloth, like many other applications, but it has some very specialized solvers, too. One of them being the ripple solver, that can be used to propagate waves across surfaces. And not only flat ones, like in this example!
Deskriptiv (http://www.deskriptiv.de) inspired me very much over the years, with their unique mixture of intricate setups and beautiful design. In this tutorial I want to show you how to rebuild one of their creations “Double Mesh” inside Houdini. “Dual Mesh”, the Houdini variant, is an interwoven sculpture made of a Delaunay mesh and its dual, the Voronoi graph. Using mostly standard SOPs this video is a lesson on creating real world setups in Houdini, quickly. […]
The “Spline Wrap” deformer inside of Cinema4D is a versatile tool that many artist use on a daily basis. Whether you want to wrap paint strokes along a spline or animate a snake, the defomer gives you a quick and easy way to do so. Houdini offers a similiar tool with the “wire deform node”, but it’s a little more versatile and thus a little more complex to setup. So having a counterpart to the […]
Hi people from the internet. After posting my geometry creation tutorial for Houdini, people approached me with the question, if such a plexus effect is possible in Cinema 4D, too. And I said no, not without plugins. But after thinking about it for a little while, I found a solution to do this with Cinema4D off-the-shelf tools. I’m using the ParticlePassAB node to find the closest points and Python to create the geometry. So if […]
Did you ever wonder how to create polygons and polylines through code in Houdini. It’s a straigtforward concept. But you have to know some things about the way Houdini organizes and stores geometry in memory. In this tutorial Manuel will walk you through the process of creating geometry with VEX in a wrangle. After some theory he’ll show you how to generate a closed polygon. Then you’ll learn how to connect neighbouring points with polylines […]
Do you want to change a classic Delaunay triangle-mesh to a cell like Voronoi topology, with little effort? Then the Cinema4D python plugin “DualGraph” is for you. It computes the dual graph of the Delaunay tesselation. That means it finds the midpoints of the original triangles and connects these to form new ngons. Resulting in a beautiful mesh.