Large Scale Terrain Generation from Tectonic Uplift and Fluvial Erosion

Cordonnier, Guillaume; Braun, Jean; Cani, Marie-Paule; Beneš, Bedřich; Galin, Éric; Peytavie, Adrien; Guérin, Éric

doi:10.1111/cgf.12820

Cited by 56 publications

(57 citation statements)

References 34 publications

(72 reference statements)

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“…These methods accurately capture small scale terrain features but require a terrain model to be eroded, which can induce large scale inconsistencies. In contrast, the work of [25] proposes a geologically-inspired erosion model that achieves the generation of large scale, plausible terrains by combining fluvial erosion with mountain growth. The user controls the process through the input of an uplift map representing the growth rate of mountains.…”

Section: User Gesturesmentioning

confidence: 99%

Sculpting Mountains: Interactive Terrain Modeling Based on Subsurface Geology

Cordonnier

Cani

Beneš

et al. 2018

IEEE Trans. Visual. Comput. Graphics

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Abstract-Most mountain ranges are formed by the compression and folding of colliding tectonic plates. Subduction of one plate causes large-scale asymmetry while their layered composition (or stratigraphy) explains the multi-scale folded strata observed on real terrains. We introduce a novel interactive modeling technique to generate visually plausible, large scale terrains that capture these phenomena. Our method draws on both geological knowledge for consistency and on sculpting systems for user interaction. The user is provided hands-on control on the shape and motion of tectonic plates, represented using a new geologically-inspired model for the Earth crust. The model captures their volume preserving and complex folding behaviors under collision, causing mountains to grow. It generates a volumetric uplift map representing the growth rate of subsurface layers. Erosion and uplift movement are jointly simulated to generate the terrain. The stratigraphy allows us to render folded strata on eroded cliffs. We validated the usability of our sculpting interface through a user study, and compare the visual consistency of the earth crust model with geological simulation results and real terrains.

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Section: User Gesturesmentioning

confidence: 99%

Sculpting Mountains: Interactive Terrain Modeling Based on Subsurface Geology

Cordonnier

Cani

Beneš

et al. 2018

IEEE Trans. Visual. Comput. Graphics

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“…Hydraulic erosion techniques were further extended and refined in [2,19]. Large-scale simulation of erosion at the level of entire mountain ranges was addressed in [3]. Erosion-based techniques are difficult to control and cannot be used to simulate large scale terrains at a high resolution.…”

Section: Related Workmentioning

confidence: 99%

Coherent multi-layer landscape synthesis

et al. 2017

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We present an efficient method for generating coherent multi-layer landscapes. We use a dictionary built from exemplars to synthesize high-resolution fully-featured terrains from input low-resolution elevation data. Our example-based method consists in analyzing real world terrain examples and learning the procedural rules directly from these inputs. We take into account not only the elevation of the terrain, but also additional layers such as the slope, orientation, drainage area, the density and distribution of vegetation, and the soil type. By increasing the variety of terrain exemplars, our method allows the user to synthesize and control different types of landscapes and biomes, such as temperate or rain forests, arid deserts and mountains.

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“…Researchers in this field have discussed algorithms to create a variety of content, including terrains [1], [2], trees [3], [4], buildings [5] and entire in-game levels [6], [7]. These algorithms take away the task of manually creating assets to be rendered within a scene, and instead focus on how assets can be created on-demand.…”

Section: Motivationmentioning

confidence: 99%

“…As a result of this, interest in researching the procedural creation of cities and other settlements has risen in recent years. 1 http://www.massivesoftware.com/ An aspect often overlooked by existing research in this area is providing historical context for the generated settlements. Providing historical context permits the environment designer to define time periods which influence the development of a city, e.g.…”

Section: Motivationmentioning

confidence: 99%

A Time-Line Approach for the Generation of Simulated Settlements

Williams

Headleand

2017

2017 International Conference on Cyberworlds (CW)

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Abstract-In this paper we present a model for procedurally generating virtual settlements populated with roads, land parcels and buildings. Our model improves on existing research by considering historical influence on settlement growth. To do this, an interactive time-line is used, allowing for a designer to specify a number of architectural periods. These architectural periods are then used in the generation process, giving the designer a robust tool to interactively generate photo-realistic urban scenes. Our results show that a variety of settlement types and sizes can be generated. In addition, we demonstrate that road patterns within real-world settlements can be created using our system.Index [7]. These algorithms take away the task of manually creating assets to be rendered within a scene, and instead focus on how assets can be created on-demand. They also typically allow for a large set of core assets, through parametrization. This permits a designer to create a large quantity of visually disparate objects with little or no effort, other than the creation of the original algorithm.The large demand for high fidelity scenes has been the driving force for advancements in graphical technology [8]. High quality scenes are utilized in a number of different areas, especially the games development industry and television/film production. As a result, procedural modelling approaches are used in industry as an alternative to traditional approaches. An example of this is the MASSIVE multi-agent system 1 , which was used to procedurally generate large crowds in the production of the Lord of the Rings trilogy of films.A frequent element seen in games and television are settlements, from sprawling cities to smaller villages and hamlets. Designing a settlement manually is a time-consuming process, largely due to the scale of the scene and the amount of elements used in its composition. As a result of this, interest in researching the procedural creation of cities and other settlements has risen in recent years.1 http://www.massivesoftware.com/ An aspect often overlooked by existing research in this area is providing historical context for the generated settlements. Providing historical context permits the environment designer to define time periods which influence the development of a city, e.g. architectural styles or urban planning decisions.Currently, state-of-the-art algorithms for generating settlements only consider the creation of a city in a single period. Modelling techniques which develop settlements over time do exist [9]-[11], however very little of these approaches use historical context to influence the development of a settlement. Historical influence plays an important role in the development decisions took when developing a city. For example, economic depression has a large impact on development decisions took throughout a certain historical period, due a shortage of resources [12].The aim of this paper is to elaborate on this, to provide a system which permits the automatic generation of virtual sett...

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Large Scale Terrain Generation from Tectonic Uplift and Fluvial Erosion

Cited by 56 publications

References 34 publications

Sculpting Mountains: Interactive Terrain Modeling Based on Subsurface Geology

Sculpting Mountains: Interactive Terrain Modeling Based on Subsurface Geology

Coherent multi-layer landscape synthesis

A Time-Line Approach for the Generation of Simulated Settlements

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