Implicit nested repetition in dataflow for procedural modeling

Creating 3D content requires a lot of expert knowledge and is often a very time consuming task. Procedural modeling can simplify this process for several application domains. However, creating procedural descriptions is still a complicated task. Graph based visual programming languages can ease the creation workflow, however direct manipulation of procedural 3D content rather than of a visual program is desirable as it resembles established techniques in 3D modeling. In this paper, we present a dataflow language that features a novel approach to handling loops in the context of direct interactive manipulation of procedural 3D models and show compilation techniques to translate it to traditional languages used in procedural modeling.