loading
Documents

Research.Publish.Connect.

Paper

Paper Unlock

Authors: Nuttachai Tipprasert and Pizzanu Kanongchaiyos

Affiliation: Chulalongkorn University, Thailand

ISBN: 972-8865-39-2

Keyword(s): global illumination, caustics, natural phenomena, color texture, depth texture, interactive rendering.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Geometry and Modeling ; Modeling of Natural Scenes and Phenomena

Abstract: Realistic rendering of underwater scenes is one of the most anticipated research topics in computer graphics. Caustics are the important component enhancing the realism of this kind of scenes. Unfortunately, rendering caustics is a time consuming task. As a result, most existing algorithms cannot handle this at interactive rate. In recent years, volumetric texture based rendering algorithms have been proposed. They can render the underwater scene with caustics in real-time. However, these algorithms require large amount of memory and are restricted to non-complex scene. In this paper we present a new interactive caustics rendering algorithm which require less memory usage. In our proposed method, we represent each object as a pair of color and depth texture. Color texture is used to store the object image viewed from viewing rays which refracted at water surface. We calculate the light intensity distribution on this image and store the result back to the color texture. The depth textu re is used in the intensity calculation process to improve accuracy of the caustics patterns. Our experiment shows that proposed algorithm can handle complex underwater scene with caustics at interactive time rate. While using a pair of color and depth in stead of volumetric texture, we can reduce memory usage significantly. (More)

PDF ImageFull Text

Download
CC BY-NC-ND 4.0

Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 18.232.53.231

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
Tipprasert N.; Kanongchaiyos P. and (2006). AN INTERACTIVE METHOD FOR REFRACTIVE WATER CAUSTICS RENDERING USING COLOR AND DEPTH TEXTURES.In Proceedings of the First International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, ISBN 972-8865-39-2, pages 423-428. DOI: 10.5220/0001355404230428

@conference{grapp06,
author={Nuttachai Tipprasert and Pizzanu Kanongchaiyos},
title={AN INTERACTIVE METHOD FOR REFRACTIVE WATER CAUSTICS RENDERING USING COLOR AND DEPTH TEXTURES},
booktitle={Proceedings of the First International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP,},
year={2006},
pages={423-428},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001355404230428},
isbn={972-8865-39-2},
}

TY - CONF

JO - Proceedings of the First International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP,
TI - AN INTERACTIVE METHOD FOR REFRACTIVE WATER CAUSTICS RENDERING USING COLOR AND DEPTH TEXTURES
SN - 972-8865-39-2
AU - Tipprasert, N.
AU - Kanongchaiyos, P.
PY - 2006
SP - 423
EP - 428
DO - 10.5220/0001355404230428

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.