Shell radiance texture functions

Song, Ying; Chen, Yanyun; Tong, Xin; Lin, Stephen; Shi, Jiaoying; Guo, Baining; Shum, Heung-Yeung

doi:10.1007/s00371-005-0320-4

Cited by 6 publications

(6 citation statements)

References 20 publications

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“…Therefore, it may be possible to use methods for efficient display of detailed geometric features on the surface of an opaque object, such as shell texture functions [6] or shell radiance texture functions [7]. However, since these methods assume that the viewpoint is far from the surface of the objects, they are not suitable for the case where the viewpoint is near the earth's surface.…”

Section: Related Workmentioning

confidence: 98%

An interactive rendering system using hierarchical data structure for earth-scale clouds

Dobashi

Yamamoto

Nishita

2010

Sci. China Inf. Sci.

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This paper presents an interactive system for realistic visualization of earth-scale clouds. Realistic images can be generated at interactive frame rates while the viewpoint and the sunlight directions can be changed interactively. The realistic display of earth-scale clouds requires us to render large volume data representing the density distribution of the clouds. However, this is generally time-consuming and it is difficult to achieve the interactive performance, especially when the sunlight direction can be changed. To address this, our system precomputes the integrated intensities and opacities of clouds for various viewing and sunlight directions. This idea is combined with a novel hierarchical data structure for further acceleration. The photorealism of the final image is improved by taking into account the atmospheric effects and shadows of clouds on the earth. We demonstrate the usefulness of our system by an application to a space flight simulation. CitationDobashi Y, Yamamoto T, Nishita T. An interactive rendering system using hierarchical data structure for earth-scale clouds. Sci China Inf Sci, 2010, 53: 920-931,

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Section: Related Workmentioning

confidence: 98%

An interactive rendering system using hierarchical data structure for earth-scale clouds

Dobashi

Yamamoto

Nishita

2010

Sci. China Inf. Sci.

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“…In order to obtain an acceptable real-time frame rates, Ref. [4] computes volume irradiance by using a precomputed shell radiance texture function (SRTF) in the running stage, though this method cannot be used for deformable objects.…”

Section: Related Workmentioning

confidence: 99%

“…Traditional global illumination algorithms, such as ray tracing, etc., need many calculations, and cannot be run in real time. Many methods, such as bidirectional texture functions (BTF) [1], bi-scale radiance transfer (BRT) [2], shell texture function (STF) [3] and shell radiance texture function (SRTF) [4] have been researched deeply for objects with mesostructure surfaces. Since these algorithms require considerable precomputation and texture synthesis, the lighting effects for dynamic, deformable objects cannot be simulated at acceptable real-time frame rates.…”

mentioning

confidence: 99%

Approximating global illumination on mesostructure surfaces with height gradient maps

Wang

Yao

et al. 2011

Vis Comput

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Rendering global illumination for objects with mesostructure surfaces is a time-consuming task, and cannot presently be applied to interactive graphics. This paper presents a real-time rendering method based on a mesostructure height gradient map (MHGM) to exhibit lighting effects on meso-scale details in dynamic environments. We approximate global illumination using a lighting model including three components: incident ambient light, direct light and single bounce indirect light. MHGM is introduced to create local apex sets, which would help us to compute the three components adaptively. Our approach runs entirely on the graphics hardware, and uses deferred shading and the graphics pipeline to accelerate computation. We achieve high quality results which can render meso-scale details with approximate global illumination even for low-resolution geometric models. Moreover, our approach fully supports dynamic scenes and deformable objects.

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“…compute subsurface scattering, using photon tracing in preprocessing and ray tracing for final visualization, but the rendering are not interactive (images are generated in about 100 seconds). In their subsequent work, shell radiance texture functions (SRTF) [SCT*05], the visualization achieves interactive frame rates. However, it is not possible to reproduce detailed silhouettes since SRTF is rendered without ray tracing.…”

Section: Mesostructurementioning

confidence: 99%

Geometry Textures and Applications^†

Toledo

Wang

Lévy

2008

Computer Graphics Forum

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Geometry textures are a novel geometric representation for surfaces based on height maps. The visualization is done through a GPU ray casting algorithm applied to the whole object. At rendering time, the fine-scale details (mesostructures) are reconstructed preserving original quality. Visualizing surfaces with geometry textures allows a natural LOD behavior. There are numerous applications that can benefit from the use of geometry textures. In this paper, besides a mesostructure visualization survey, we present geometry textures with three possible applications: rendering of solid models, geological surfaces visualization and surface smoothing.

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Shell radiance texture functions

Cited by 6 publications

References 20 publications

An interactive rendering system using hierarchical data structure for earth-scale clouds

An interactive rendering system using hierarchical data structure for earth-scale clouds

Approximating global illumination on mesostructure surfaces with height gradient maps

Geometry Textures and Applications^†

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Shell radiance texture functions

Cited by 6 publications

References 20 publications

An interactive rendering system using hierarchical data structure for earth-scale clouds

An interactive rendering system using hierarchical data structure for earth-scale clouds

Approximating global illumination on mesostructure surfaces with height gradient maps

Geometry Textures and Applications†

Contact Info

Product

Resources

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Geometry Textures and Applications^†