Modeling Rocky Scenery using Implicit Blocks

Axel Paris (1) , Adrien Peytavie (1) , Eric Guérin (1) , Jean-Michel Dischler (2) , Eric Galin (1)

1 Origami - Origami
2 ICube - Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie

We present a novel geologically-based method to generate vertical walls of rocky cliffs, crags or promontories. Our method procedurally generates a distribution of fractures in the bedrock to create a set of tiling blocks defined as implicit volumetric primitives. Blocks are in turn implicitly replicated over the vertical parts of the terrain and combined together to obtain a consistent volumetric representation of the fractured bedrock patterns using generalized union and blending operators. Our framework provides multiple levels of control: in addition to automatically generated blocks, the geometry of specific ones can be prescribed by the user using implicit primitives or construction trees, the shape of the blocks can be controlled by several parameters , and the placement rules may adapt according to the underlying geological strata and geometry of the terrain.

Mots clés: Implicit surfaces; Terrain Synthesis; Procedural Modeling

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]

Axel Paris, Adrien Peytavie, Eric Guérin, Jean-Michel Dischler, Eric Galin. Modeling Rocky Scenery using Implicit Blocks. Journées Françaises d'Informatique Graphique (JFIG 2020), Nov 2020, Nancy, France. ⟨hal-04360946⟩