Procedural Modeling of Crystal Clusters

We propose procedural modeling of crystal clusters. Based on crystallography, we model single crystals and then distribute single crystals on a base rock using a hierarchical sampling approach. Users can interactively generate various crystal clusters, including amethyst and citrine clusters. Furthermore, our approach offers a high-level specification, i.e., target shape so that the generated clusters approximate the shape; such controllability is crucial for realizing artists’ intentions. Additionally, we focused on fabrication-oriented procedural modeling. We identify the possible parameter spaces based on physical experiments, i.e., test the removability of resin casts from silicone molds produced by the 3D printed crystal clusters for making replicas.