Sub-Geometry Shadow Mapping Based on Normal Detection

Author(s):  
Hua Li ◽  
Huamin Yang ◽  
Cheng Han
Keyword(s):  
2019 ◽  
Vol 9 (11) ◽  
pp. 2225 ◽  
Author(s):  
Francesco Osti ◽  
Gian Maria Santi ◽  
Gianni Caligiana

In this paper, we present a solution for the photorealistic ambient light render of holograms into dynamic real scenes, in augmented reality applications. Based on Microsoft HoloLens, we achieved this result with an Image Base Lighting (IBL) approach. The real-time image capturing that has been designed is able to automatically locate and position directional lights providing the right illumination to the holograms. We also implemented a negative “shadow drawing” shader that contributes to the final photorealistic and immersive effect of holograms in real life. The main focus of this research was to achieve a superior photorealism through the combination of real-time lights placement and negative “shadow drawing” shader. The solution was evaluated in various Augmented Reality case studies, from classical ones (using Vuforia Toolkit) to innovative applications (using HoloLens).


2019 ◽  
Vol 39 (1) ◽  
pp. 389-404
Author(s):  
M. C. F. Macedo ◽  
A. L. Apolinário ◽  
K. A. Agüero
Keyword(s):  

2007 ◽  
Vol 26 (3) ◽  
pp. 525-533 ◽  
Author(s):  
Gaël Guennebaud ◽  
Loïc Barthe ◽  
Mathias Paulin

2003 ◽  
Vol 8 (3) ◽  
pp. 23-32 ◽  
Author(s):  
Jukka Arva ◽  
Tima Aila
Keyword(s):  

2016 ◽  
Vol 679 ◽  
pp. 97-101
Author(s):  
Chang Yuen Chan ◽  
Li Hua Li ◽  
Wing Bun Lee ◽  
Ya Hui Liu

When the micro lens array machined by an ultra-precision machine was used in 3D computer graphics, a novel format of depth map image was invented with adaptively variable data length for multi requirements of different 3D computer graphics applications. A depth map is an image or image channel that contains information relating to the distance of the surfaces of objects a scene from a viewpoint. Depth maps can be applied for many functions: defocusing, rendering of 3D scenes, shadow mapping and other distance information-related applications.


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