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Real-time rendering of plant leaves

Published: 01 July 2005 Publication History

Abstract

This paper presents a framework for the real-time rendering of plant leaves with global illumination effects. Realistic rendering of leaves requires a sophisticated appearance model and accurate lighting computation. For leaf appearance we introduce a parametric model that describes leaves in terms of spatially-variant BRDFs and BTDFs. These BRDFs and BTDFs, incorporating analysis of subsurface scattering inside leaf tissues and rough surface scattering on leaf surfaces, can be measured from real leaves. More importantly, this description is compact and can be loaded into graphics hardware for fast run-time shading calculations, which are essential for achieving high frame rates. For lighting computation, we present an algorithm that extends the Precomputed Radiance Transfer (PRT) approach to all-frequency lighting for leaves. In particular, we handle the combined illumination effects due to low-frequency environment light and high-frequency sunlight. This is done by decomposing the local incident radiance of sunlight into direct and indirect components. The direct component, which contains most of the high frequencies, is not pre-computed with spherical harmonics as in PRT; instead it is evaluated on-the-fly using pre-computed light-visibility convolution data. We demonstrate our framework by the rendering of a variety of leaves and assemblies thereof.

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References

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  • (2016)Effect of full and limited irrigation amount and frequency on subsurface drip-irrigated maize evapotranspiration, yield, water use efficiency and yield response factorsIrrigation Science10.1007/s00271-016-0502-z34:4(271-286)Online publication date: 4-Apr-2016
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Published In

cover image ACM Conferences
SIGGRAPH '05: ACM SIGGRAPH 2005 Papers
July 2005
826 pages
ISBN:9781450378253
DOI:10.1145/1186822
  • Editor:
  • Markus Gross
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 01 July 2005

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Author Tags

  1. appearance modeling
  2. natural phenomena
  3. real-time rendering
  4. reflectance and shading models

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SIGGRAPH '05 Paper Acceptance Rate 98 of 461 submissions, 21%;
Overall Acceptance Rate 1,822 of 8,601 submissions, 21%

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Cited By

View all
  • (2018)Sensing crop reflectance for water stress detection in greenhousesActa Horticulturae10.17660/ActaHortic.2018.1197.16(117-126)Online publication date: Apr-2018
  • (2017)Large Scene RenderingHandbook on Advances in Remote Sensing and Geographic Information Systems10.1007/978-3-319-52308-8_9(281-320)Online publication date: 26-Feb-2017
  • (2016)Effect of full and limited irrigation amount and frequency on subsurface drip-irrigated maize evapotranspiration, yield, water use efficiency and yield response factorsIrrigation Science10.1007/s00271-016-0502-z34:4(271-286)Online publication date: 4-Apr-2016
  • (2009)Image-Based Modeling of Plants and TreesSynthesis Lectures on Computer Vision10.2200/S00205ED1V01Y200911COV0011:1(1-83)Online publication date: Jan-2009
  • (2009)Advanced material appearance modelingACM SIGGRAPH 2009 Courses10.1145/1667239.1667242(1-134)Online publication date: 3-Aug-2009
  • (2009)Survey on Modeling and Visualization of Plant Leaf ColorProceedings of the 2009 Plant Growth Modeling, Simulation, Visualization, and Applications10.1109/PMA.2009.33(417-424)Online publication date: 9-Nov-2009
  • (2008)Advanced material appearance modelingACM SIGGRAPH 2008 classes10.1145/1401132.1401140(1-145)Online publication date: 11-Aug-2008
  • (2007)Physically based real-time translucency for leavesProceedings of the 18th Eurographics conference on Rendering Techniques10.5555/2383847.2383880(253-263)Online publication date: 25-Jun-2007
  • (2007)Image-Based Rendering and SynthesisIEEE Signal Processing Magazine10.1109/MSP.2007.90570224:6(22-33)Online publication date: Nov-2007
  • (2007)Digital Modeling of Material AppearanceundefinedOnline publication date: 6-Dec-2007
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