Outdoor lighting design software is based on many simplified hypotheses related to material reflection properties, building morphology, reflection contribution of surrounding surfaces (such as the ground, other building facades, trees, etc.) and sky (variable with atmospheric conditions). The aim of this paper is to evaluate in different conditions the above discrepancies in order to determine a work method to minimize them. These imprecision will be shown in relation to numerical and graphical output, comparing a significant set of rendering obtained with different levels of accuracy in a geometrical model construction and varying solution parameters. Solution accuracy depends on many parameters set by the designer, each of which can significantly influence the calculation. Nonetheless only some of these parameters are strictly connected with result precision, and so they deserve particular attention. The building used as a model for this paper is an important palace in Rome; software is Lightscape 3.1.1, by Lightscape Technologies Inc.
Frascarolo, M., Grignaffini, S. (2001). Simulation software in outdoor surfaces lighting design: simplification hypothesis and effects on calculation results and rendering. In Convegno Internazionale Lux Europa 2001, Reykjavik.
Simulation software in outdoor surfaces lighting design: simplification hypothesis and effects on calculation results and rendering
FRASCAROLO, MARCO;
2001-01-01
Abstract
Outdoor lighting design software is based on many simplified hypotheses related to material reflection properties, building morphology, reflection contribution of surrounding surfaces (such as the ground, other building facades, trees, etc.) and sky (variable with atmospheric conditions). The aim of this paper is to evaluate in different conditions the above discrepancies in order to determine a work method to minimize them. These imprecision will be shown in relation to numerical and graphical output, comparing a significant set of rendering obtained with different levels of accuracy in a geometrical model construction and varying solution parameters. Solution accuracy depends on many parameters set by the designer, each of which can significantly influence the calculation. Nonetheless only some of these parameters are strictly connected with result precision, and so they deserve particular attention. The building used as a model for this paper is an important palace in Rome; software is Lightscape 3.1.1, by Lightscape Technologies Inc.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
