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.

中文翻译：

---

使用隐式块模拟岩石景观

我们提出了一种新的基于地质的方法来生成岩石峭壁、峭壁或海角的垂直墙。我们的方法在基岩中按程序生成裂缝分布，以创建一组定义为隐式体积基元的平铺块。块依次在地形的垂直部分上隐式复制，并使用广义联合和混合算子组合在一起以获得断裂基岩模式的一致体积表示。我们的框架提供了多级控制：除了自动生成的块外，用户可以使用隐式图元或构造树来指定特定块的几何形状，块的形状可以由几个参数控制，