Real-time optimal adaptation for planetary geometry and texture: 4-8 tile hierarchies

Hwa, Lok M.; Duchaineau, Mark A.; Joy, Kenneth I.

doi:10.1109/tvcg.2005.65

Cited by 43 publications

(48 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This method has been optimized later for remote visualization (Bettio, 2007). Hwa et al in (Hwa, 2005) used GPU-based geometry morphing to render terrain patches of different resolutions from out-of-core multiresolution data structures. In (Lindstrom, 2010), lossless compression for GPU-based decompression is considered.…”

Section: Related Workmentioning

confidence: 99%

Irregular Morphing for Real-Time Rendering of Large Terrain

Kalem

Kourgli

2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:The following paper proposes an alternative approach to the real-time adaptive triangulation problem. A new region-based multiresolution approach for terrain rendering is described which improves on-the-fly the distribution of the density of triangles inside the tile after selecting appropriate Level-Of-Detail by an adaptive sampling. This proposed approach organizes the heightmap into a QuadTree of tiles that are processed independently. This technique combines the benefits of both Triangular Irregular Network approach and region-based multi-resolution approach by improving the distribution of the density of triangles inside the tile. Our technique morphs the initial regular grid of the tile to deformed grid in order to minimize approximation error. The proposed technique strives to combine large tile size and real-time processing while guaranteeing an upper bound on the screen space error. Thus, this approach adapts terrain rendering process to local surface characteristics and enables on-the-fly handling of large amount of terrain data. Morphing is based-on the multi-resolution wavelet analysis. The use of the D2WT multi-resolution analysis of the terrain height-map speeds up processing and permits to satisfy an interactive terrain rendering. Tests and experiments demonstrate that Haar B-Spline wavelet, well known for its properties of localization and its compact support, is suitable for fast and accurate redistribution. Such technique could be exploited in client-server architecture for supporting interactive high-quality remote visualization of very large terrain.

show abstract

Section: Related Workmentioning

confidence: 99%

Irregular Morphing for Real-Time Rendering of Large Terrain

Kalem

Kourgli

2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

show abstract

“…Most GPU-based level-of-detail algorithms were designed for height fields and terrain data sets [25][26][27][28][29][30][31]. Little work has been done to deal with general 3D models.…”

Section: Related Workmentioning

confidence: 99%

Displacement patches for view-dependent rendering

2011

View full text Add to dashboard Cite

In this paper we present a new approach for interactive view-dependent rendering of large polygonal data sets which relies on advanced features of modern graphics hardware. Our preprocessing algorithm starts by generating a simplified representation of the input mesh. It then builds a multiresolution hierarchy for the simplified model. For each face in the hierarchy, it generates and assigns a displacement map that resembles the original surface represented by that face. At runtime, the multiresolution hierarchy is used to select a coarse view-dependent level-of-detail representation, which is sent to the graphics hardware. The GPU then refines the coarse representation by replacing each face with a planar tile, which is elevated according to the assigned displacement map. Our results show that our implementation achieves quality images at high frame rates.

show abstract

“…Hwa et al modernized [5] a well-known but already obsolete Real-time Optimally-Adapting Meshes (ROAM) algorithm [6], therefore their contribution is referred to as ROAM 2.0. A similar approach is also the RUSTiC algorithm [7] but ROAM 2.0 is more advanced.…”

Section: Roam 20mentioning

confidence: 99%

Modern Algorithms for Real-Time Terrain Visualization on Commodity Hardware

Barton

2010

Geoinformatics FCE CTU

View full text Add to dashboard Cite

The amount of input data acquired from a remote sensing equipment is rapidly growing. Interactive visualization of those datasets is a necessity for their correct interpretation. With the ability of modern hardware to display hundreds of millions of triangles per second, it is possible to visualize the massive terrains at one pixel display error on HD displays with interactive frame rates when batched rendering is applied. Algorithms able to do this are an area of intensive research and a topic of this article. The paper first explains some of the theory around the terrain visualization, categorizes its algorithms according to several criteria and describes six of the most significant methods in more details.

show abstract

Real-time optimal adaptation for planetary geometry and texture: 4-8 tile hierarchies

Cited by 43 publications

References 26 publications

Irregular Morphing for Real-Time Rendering of Large Terrain

Irregular Morphing for Real-Time Rendering of Large Terrain

Displacement patches for view-dependent rendering

Modern Algorithms for Real-Time Terrain Visualization on Commodity Hardware

Contact Info

Product

Resources

About