scholarly journals Real-Time Rendering Techniques with Hardware Tessellation

2015 ◽  
Vol 35 (1) ◽  
pp. 113-137 ◽  
Author(s):  
M. Nießner ◽  
B. Keinert ◽  
M. Fisher ◽  
M. Stamminger ◽  
C. Loop ◽  
...  
Keyword(s):  
Real Time ◽  
Hardware Tessellation ◽  
Rendering Techniques

scholarly journals Subsurface Scattering-Based Object Rendering Techniques for Real-Time Smartphone Games

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Won-Sun Lee ◽  
Seung-Do Kim ◽  
Seongah Chin
Keyword(s):  
Distribution Function ◽  
Computer Graphics ◽  
Real Time ◽  
Scattering Method ◽  
Bidirectional Reflectance Distribution Function ◽  
Subsurface Scattering ◽  
Bidirectional Reflectance ◽  
Comparison Results ◽  
Bidirectional Reflectance Distribution ◽  
Rendering Techniques

Subsurface scattering that simulates the path of a light through the material in a scene is one of the advanced rendering techniques in the field of computer graphics society. Since it takes a number of long operations, it cannot be easily implemented in real-time smartphone games. In this paper, we propose a subsurface scattering-based object rendering technique that is optimized for smartphone games. We employ our subsurface scattering method that is utilized for a real-time smartphone game. And an example game is designed to validate how the proposed method can be operated seamlessly in real time. Finally, we show the comparison results between bidirectional reflectance distribution function, bidirectional scattering distribution function, and our proposed subsurface scattering method on a smartphone game.

scholarly journals Real-Time Large Crowd Rendering with Efficient Character and Instance Management on GPU

2019 ◽  
Vol 2019 ◽  
pp. 1-15
Author(s):  
Yangzi Dong ◽  
Chao Peng
Keyword(s):  
Real Time ◽  
Visual Quality ◽  
Level Of Detail ◽  
Experimental Results ◽  
Visual Appearance ◽  
Fine Grained ◽  
Individual Character ◽  
Visibility Culling ◽  
Rendering Techniques

Achieving the efficient rendering of a large animated crowd with realistic visual appearance is a challenging task when players interact with a complex game scene. We present a real-time crowd rendering system that efficiently manages multiple types of character data on the GPU and integrates seamlessly with level-of-detail and visibility culling techniques. The character data, including vertices, triangles, vertex normals, texture coordinates, skeletons, and skinning weights, are stored as either buffer objects or textures in accordance with their access requirements at the rendering stage. Our system preserves the view-dependent visual appearance of individual character instances in the crowd and is executed with a fine-grained parallelization scheme. We compare our approach with the existing crowd rendering techniques. The experimental results show that our approach achieves better rendering performance and visual quality. Our approach is able to render a large crowd composed of tens of thousands of animated instances in real time by managing each type of character data in a single buffer object.

Quantitative Description of Mitral Valve Geometry Using Real-Time Three-Dimensional Echocardiography

2007 ◽  
Vol 2 (5) ◽  
pp. 237-244 ◽  
Author(s):  
Liam P. Ryan ◽  
Benjamin M. Jackson ◽  
Thomas J. Eperjesi ◽  
Theodore J. Plappert ◽  
Martin St. John-Sutton ◽  
...  
Keyword(s):  
Image Processing ◽  
Mitral Valve ◽  
Real Time ◽  
Human Subjects ◽  
Quantitative Description ◽  
Three Dimensional ◽  
Widespread Application ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography ◽  
Rendering Techniques

Objectives Leaflet and annular geometry are important determinants of mitral valve (MV) stress. Repair techniques which optimize valvular geometry will reduce stress and potentially increase repair durability. The development of such procedures will require image processing methodologies that provide a quantitative description of three-dimensional valvular geometry. Using three-dimensional echocardiography in conjunction with novel geometric modeling and rendering techniques, we have developed a high-resolution, quantitative, three-dimensional methodology for imaging the human MV. Methods Five normal adults underwent MV imaging using real-time three-dimensional echocardiography. Using specially designed image analysis software, multiple valvular geometric parameters, including the magnitude and orientation of leaflet curvature, leaflet surface area, annular height, intercommissural width, septolateral annular diameter, and annular area were determined for each subject. Image rendering techniques that allow for the clear and concise presentation of this detailed information are also presented. Results Although three-dimensional annular and leaflet geometry were found to be highly conserved among normal human subjects, substantial regional variation in leaflet geometry was observed. Interestingly, leaflet geometric heterogeneity was most pronounced in the midposterior leaflet, the region most commonly involved in leaflet flail in subjects with myxomatous disease. Conclusions The image processing and graphical rendering techniques that we have developed can be used to provide a complete description of three-dimensional MV geometry in human subjects. Widespread application of these techniques to normal subjects and patients with MV disease will provide insight into the geometric basis of both valvular pathology and repair durability.

Web-Based Historical City Walks: Advances and Bottlenecks

2006 ◽  
Vol 15 (3) ◽  
pp. 262-277
Author(s):  
Jiri Zara
Keyword(s):  
Real Time ◽  
Large Scale ◽  
Web Based ◽  
Optimal Organization ◽  
Web Environment ◽  
Address Data ◽  
Scale Models ◽  
Rendering Techniques ◽  
City Models ◽  
Data Optimization

This paper deals with a set of useful methods for presenting large-scale models of real cities in a web environment. While acquisition issues are outlined only briefly, this study focuses on the optimal organization of city models and efficient rendering techniques. We also address data optimization for real-time delivery. The methods under discussion are illustrated by examples taken from several existing web presentations developed by our students, especially from the Virtual Old Prague project. Although the principles are general, specific attention is paid to the use of standards developed by the Web3D Consortium.

Survey of Real-Time Rendering Techniques for Crowds

2005 ◽  
Vol 24 (2) ◽  
pp. 203-215 ◽  
Author(s):  
G. Ryder ◽  
A. M. Day
Keyword(s):  
Real Time ◽  
Rendering Techniques

Some Recent Results in Quiescent Prominence Spectrometry

1979 ◽  
Vol 44 ◽  
pp. 41-47
Author(s):  
Donald A. Landman
Keyword(s):  
Real Time ◽  
Computer System ◽  
Spectral Response ◽  
Absolute Intensity ◽  
Solar Observatory ◽  
Target Size ◽  
Small Target ◽  
Signal Averaging ◽  
Quiescent Prominence

This paper describes some recent results of our quiescent prominence spectrometry program at the Mees Solar Observatory on Haleakala. The observations were made with the 25 cm coronagraph/coudé spectrograph system using a silicon vidicon detector. This detector consists of 500 contiguous channels covering approximately 6 or 80 Å, depending on the grating used. The instrument is interfaced to the Observatory’s PDP 11/45 computer system, and has the important advantages of wide spectral response, linearity and signal-averaging with real-time display. Its principal drawback is the relatively small target size. For the present work, the aperture was about 3″ × 5″. Absolute intensity calibrations were made by measuring quiet regions near sun center.

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