DeadWood: Including disturbance and decay in the depiction of digital nature
Gespeichert in:
| Titel: | DeadWood: Including disturbance and decay in the depiction of digital nature |
|---|---|
| Autoren: | Peytavie, Adrien, Gain, James Edward, Guerin, Eric, Argudo Medrano, Óscar, Galin, Eric |
| Weitere Verfasser: | Universitat Politècnica de Catalunya. Departament de Ciències de la Computació, Universitat Politècnica de Catalunya. ViRVIG - Grup de Recerca en Visualització, Realitat Virtual i Interacció Gràfica |
| Publikationsjahr: | 2024 |
| Bestand: | Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
| Schlagwörter: | Àrees temàtiques de la UPC::Informàtica::Infografia, Nature -- Computer simulation, Ecosystem simulation, Natural phenomena, Natura -- Simulació per ordinador |
| Beschreibung: | The creation of truly believable simulated natural environments remains an unsolved problem in Computer Graphics. This is, in part, due to a lack of visual variety. In nature, apart from variation due to abiotic and biotic growth factors, a significant role is played by disturbance events, such as fires, windstorms, disease, and death and decay processes, which give rise to both standing dead trees (snags) and downed woody debris (logs). For instance, snags constitute on average 10% of unmanaged forests by basal area, and logs account for 2 1/2 times this quantity. While previous systems have incorporated individual elements of disturbance (e.g., forest fires) and decay (e.g., the formation of humus), there has been no unifying treatment, perhaps because of the challenge of matching simulation results with generated geometric models. In this paper, we present a framework that combines an ecosystem simulation, which explicitly incorporates disturbance events and decay processes, with a model realization process, which balances the uniqueness arising from life history with the need for instancing due to memory constraints. We tested our hypothesis concerning the visual impact of disturbance and decay with a two-alternative forced-choice experiment (n = 116). Our findings are that the presence of dead wood in various forms, as snags or logs, significantly improves the believability of natural scenes, while, surprisingly, general variation in the number of model instances, with up to 8 models per species, and a focus on disturbance events, does not. ; This work was funded by the project AMPLI ANR-20-CE23-0001, supported by Agence Nationale de la Recherche (France), by the National Research Foundation of South Africa (Grant Number: 129257) and is also part of a Maria Zambrano fellowship by Ministerio de Universidades (Spain). ; Peer Reviewed ; Postprint (author's final draft) |
| Publikationsart: | article in journal/newspaper |
| Dateibeschreibung: | 19 p.; application/pdf |
| Sprache: | English |
| Relation: | Peytavie, A. [et al.]. DeadWood: Including disturbance and decay in the depiction of digital nature. "ACM transactions on graphics", 14 Febrer 2024, vol. 43, núm. 2, article 21.; http://hdl.handle.net/2117/407749 |
| DOI: | 10.1145/3641816 |
| Verfügbarkeit: | http://hdl.handle.net/2117/407749 https://doi.org/10.1145/3641816 |
| Rights: | Open Access |
| Dokumentencode: | edsbas.4CFB926A |
| Datenbank: | BASE |
Nájsť tento článok vo Web of Science | Abstract: | The creation of truly believable simulated natural environments remains an unsolved problem in Computer Graphics. This is, in part, due to a lack of visual variety. In nature, apart from variation due to abiotic and biotic growth factors, a significant role is played by disturbance events, such as fires, windstorms, disease, and death and decay processes, which give rise to both standing dead trees (snags) and downed woody debris (logs). For instance, snags constitute on average 10% of unmanaged forests by basal area, and logs account for 2 1/2 times this quantity. While previous systems have incorporated individual elements of disturbance (e.g., forest fires) and decay (e.g., the formation of humus), there has been no unifying treatment, perhaps because of the challenge of matching simulation results with generated geometric models. In this paper, we present a framework that combines an ecosystem simulation, which explicitly incorporates disturbance events and decay processes, with a model realization process, which balances the uniqueness arising from life history with the need for instancing due to memory constraints. We tested our hypothesis concerning the visual impact of disturbance and decay with a two-alternative forced-choice experiment (n = 116). Our findings are that the presence of dead wood in various forms, as snags or logs, significantly improves the believability of natural scenes, while, surprisingly, general variation in the number of model instances, with up to 8 models per species, and a focus on disturbance events, does not. ; This work was funded by the project AMPLI ANR-20-CE23-0001, supported by Agence Nationale de la Recherche (France), by the National Research Foundation of South Africa (Grant Number: 129257) and is also part of a Maria Zambrano fellowship by Ministerio de Universidades (Spain). ; Peer Reviewed ; Postprint (author's final draft) |
|---|---|
| DOI: | 10.1145/3641816 |