Terrain Modelling from Feature Primitives - Archive ouverte HAL Access content directly
Journal Articles Computer Graphics Forum Year : 2015

Terrain Modelling from Feature Primitives

Abstract

We introduce a compact hierarchical procedural model that combines feature-based primitives to describe complex terrains with varying level of detail. Our model is inspired by skeletal implicit surfaces and defines the terrain elevation function by using a construction tree. Leaves represent terrain features and they are generic parametrized skeletal primitives, such as mountains, ridges, valleys, rivers, lakes or roads. Inner nodes combine the leaves and subtrees by carving, blending or warping operators. The elevation of the terrain at a given point is evaluated by traversing the tree and by combining the contributions of the primitives. The definition of the tree leaves and operators guarantees that the resulting elevation function is Lipschitz, which speeds up the sphere tracing used to render the terrain. Our model is compact and allows for the creation of large terrains with a high level o detail using a reduced set of primitives. We show the creation of different kinds of landscapes and demonstrate that our model allows to efficiently control the shape and distribution of landform features.
Fichier principal
Vignette du fichier
2014-primitives-terrains-author.pdf (18.23 Mo) Télécharger le fichier
Origin Files produced by the author(s)
Loading...

Dates and versions

hal-01257198 , version 1 (20-04-2020)
hal-01257198 , version 2 (14-10-2020)

Identifiers

Cite

Jean-David Génevaux, Eric Galin, Adrien Peytavie, Eric Guérin, Cyril Briquet, et al.. Terrain Modelling from Feature Primitives. Computer Graphics Forum, 2015, 34 (6), pp.198-210. ⟨10.1111/cgf.12530⟩. ⟨hal-01257198v2⟩
687 View
286 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More