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Figure 1 : Procedurally generated features with our method: arches (left), an overhang (middle) and a cave (right). ABSTRACT In this work we present separate procedural methods to generate features that are found in natural terrains which are difficult to reproduce with heightmap-based methods. We approximate overhangs, arches and caves using procedural functions and a reduced set of parameters. This produces visually plausible terrain feature topologies as well as a high degree of artisticdoi:10.1145/3102163.3102216 dblp:conf/siggraph/DeyDG17 fatcat:tgmifdog4bgmjlucn2srww2uru