Modelling colour changes of wood for architectural CAD simulations

Research output: Contribution to journalArticlepeer-review

Abstract

It is a fact that the natural material wood changes its appearance during weathering. This study deals with the modelling of the discolouration process on wood colour during natural weathering and the simulation of ageing effects on wood surfaces in computer graphics. A measurement-based technique was used to create a realistic simulation for weathered material. The surface colour for larch and Norway spruce samples was determined according to the CIEL*a*b* system during a natural weathering test over one year. Accordingly, the collected data are smoothed using a local regression method. Based on this model the natural colour changes of wood can be implemented in CAD software and the ageing of the building can be simulated by means of renderings. At the end of the weathering test the colour impression faded and achieved a grey colour. It was recognized that the simulation of the weathering effects and the actual changes during natural weathering are comparable. The developed method can be a starting point for further investigations. © 2011 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)1849-1853
Number of pages5
JournalCAD Computer Aided Design
Volume43
Issue number12
DOIs
Publication statusPublished - 2011

Keywords

  • Coniferous wood
  • LOESS
  • Simulation of discolouration
  • Ageing effects
  • CAD softwares
  • Colour change
  • Local regression
  • Measurement-based
  • Natural colour
  • Natural materials
  • Natural weathering
  • Norway spruce
  • Realistic simulation
  • Surface colours
  • Weathering effects
  • Wood surfaces
  • Color
  • Color computer graphics
  • Computer aided design
  • Weathering
  • Wood
  • Computer simulation
  • Computer Graphics
  • Simulation
  • Softwoods

Classification according to Österreichische Systematik der Wissenschaftszweige (ÖFOS 2012)

  • 205008 Wood technology

Applied Research Level (ARL)

  • ARL Level 6 - Principle in operating environment

Research focus/foci

  • Sustainable Materials and Technologies

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