Interactive Rendering to View-Dependent Texture-Atlases

Trapp, Matthias; Döllner, Jürgen

Interactive Rendering to View-Dependent Texture-Atlases

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interactive rendering to view-dependent texture atlases.wmv (35.31 MB)

Date

2010

Authors

Trapp, Matthias
Döllner, Jürgen

Publisher

The Eurographics Association

Abstract

The image-based representation of geometry is a well known concept in computer graphics. Due to z-buffering, the derivation of such representations using render-to-texture delivers only information of the closest fragments with respect to the virtual camera. Often, transparency-based visualization techniques, e.g., ghosted views, also require information of occluded fragments. These can be captured using multi-pass rendering techniques such as depthpeeling or stencil-routed A-buffers on a per-fragment basis. This paper presents an additional rendering technique that enables the derivation of image-based representations on a per-object level within a single rendering pass. We use a dynamic 3D texture atlas that is parameterized on a per-frame basis. Prior to rasterization, the primitives are transformed to their respective position within the texture atlas, using vertex-displacement in screen space.The image-based representation of geometry is a well known concept in computer graphics. Due to z-buffering, the derivation of such representations using render-to-texture delivers only information of the closest fragments with respect to the virtual camera. Often, transparency-based visualization techniques, e.g., ghosted views, also require information of occluded fragments. These can be captured using multi-pass rendering techniques such as depthpeeling or stencil-routed A-buffers on a per-fragment basis. This paper presents an additional rendering technique that enables the derivation of image-based representations on a per-object level within a single rendering pass. We use a dynamic 3D texture atlas that is parameterized on a per-frame basis. Prior to rasterization, the primitives are transformed to their respective position within the texture atlas, using vertex-displacement in screen space.

        @inproceedings{10.2312:egsh.20101053
,
booktitle = {Eurographics 2010 - Short Papers
},
editor = {H. P. A. Lensch and S. Seipel
},
title = {{Interactive Rendering to View-Dependent Texture-Atlases
}},
author = {Trapp, Matthias and 
Döllner, Jürgen
},
year = {2010
},
publisher = {The Eurographics Association
},
ISBN = {},
DOI = {10.2312/egsh.20101053
}
}