Rendering Forest Scenes in Real-Time

Philippe Decaudin 1 Fabrice Neyret 1
1 EVASION - Virtual environments for animation and image synthesis of natural objects
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : Forests are crucial for scene realism in applications such as flight simulators. This paper proposes a new representation allowing for the real-time rendering of realistic forests covering an arbitrary terrain. It lets us produce dense forests corresponding to continuous non-repetitive fields made of thousands of trees with full parallax. Our representation draws on volumetric textures and aperiodic tiling: the forest consists of a set of edge-compatible prisms containing forest samples which are aperiodically mapped onto the ground. The representation allows for quality rendering, thanks to appropriate 3D non-linear filtering. It relies on LODs and on a GPU-friendly structure to achieve real-time performance. Dynamic lighting and shadowing are beyond the scope of this paper. On the other hand, we require no advanced graphics feature except 3D textures and decent fill and vertex transform rates. However we can take advantage of vertex shaders so that the slicing of the volumetric texture is entirely done on the GPU.
Document type :
Conference papers
Complete list of metadatas

Cited literature [21 references]  Display  Hide  Download


https://hal.inria.fr/inria-00537458
Contributor : Fabrice Neyret <>
Submitted on : Thursday, November 18, 2010 - 3:26:53 PM
Last modification on : Thursday, June 28, 2018 - 1:15:39 AM
Long-term archiving on : Saturday, February 19, 2011 - 3:05:03 AM

Identifiers

  • HAL Id : inria-00537458, version 1

Collections

IMAG | INRIA | UGA

Citation

Philippe Decaudin, Fabrice Neyret. Rendering Forest Scenes in Real-Time. EGSR04: 15th Eurographics Symposium on Rendering, Mark Ollila, Jun 2004, Norrköping, Sweden. pp.93--102. ⟨inria-00537458⟩

Share

Metrics

Record views

1035

Files downloads

2246