Metaballs are a fun way of creating blobby looking shapes. The idea stems from a method for rendering molecules, where each atom contributes to the overall electron density1. In the easy case of hydrogen, this contribution is a radially symmetric shape centered around the atom’s center \(c\): $$ f(v; c) = a \exp(- \|v - c\|_2^2) $$ To render a collection of such atoms, one then takes the sum over these contributions, and renders a level-set:...

16 May 2020 · Konrad Heidler


6 May 2020 · Konrad Heidler

Slit Scanning

12 Sep 2019 · Konrad Heidler

World Population

16 Aug 2019 · Konrad Heidler

Nested Reaction Diffusion

11 Aug 2019 · Konrad Heidler

Brain Volume Rendering

5 Jul 2019 · Konrad Heidler

Soap Bubbles

6 Jun 2019 · Konrad Heidler

3D Reaction Diffusion

2 Apr 2019 · Konrad Heidler

Integration Methods

2 Mar 2019 · Konrad Heidler

Particle Life

Particle Simulations are great. Life Simulations are fun. Meet Particle Life – the intersection of these two worlds. Inspired by Biologist Lynn Margulis’ theory of endosymbiosis, Jeffrey Ventrella invented his Clusters. The main idea is simulating microorganisms that have pretty basic interaction patterns. Some species are drawn towards certain others, while some will be repelled by others. Implementing a particle simulation with these rules leads to very interesting patterns. Compared to physics-based particle simulations, this approach explicitly violates the Conservation of Momentum....

31 Jan 2019 · Konrad Heidler


25 Dec 2018 · Konrad Heidler


Konrad Heidler