ModLum
Illumination project aided design tool
Résumé
Illumination phenomena simulation is important for architectural project design and
communication: simulation tools must assist efficiently the designer; results have to be
reliable and realistic for the decision-makers. Indeed, it is very difficult, for a nonspecialist
to imagine the result of an illumination from the light designer plans.
Experience shows that the success of a photo-realistic simulation relies essentially on the
choice of the light source characteristics and their correct positioning in the scene. This
paper first presents the specificities of illumination projects (very large geometrical data
bases enlightened by a large amount of light sources) and the difficulties of their set-up.
Light arrangement requires tricky compositions, judicious choices and accurate studies.
Currently there is no specific modeller for the handling of light sources as they are
considered in radiosity software. Then we present the interactive tool we have
developed, named ModLum, in order to set up light sources in a 3D architectural model
in order to save time during the design step and simplify the source handling. ModLum
specifications and principles are presented. Finally, an application is presented: the
illumination project of two cloisters in Quito (Ecuador, South America).
communication: simulation tools must assist efficiently the designer; results have to be
reliable and realistic for the decision-makers. Indeed, it is very difficult, for a nonspecialist
to imagine the result of an illumination from the light designer plans.
Experience shows that the success of a photo-realistic simulation relies essentially on the
choice of the light source characteristics and their correct positioning in the scene. This
paper first presents the specificities of illumination projects (very large geometrical data
bases enlightened by a large amount of light sources) and the difficulties of their set-up.
Light arrangement requires tricky compositions, judicious choices and accurate studies.
Currently there is no specific modeller for the handling of light sources as they are
considered in radiosity software. Then we present the interactive tool we have
developed, named ModLum, in order to set up light sources in a 3D architectural model
in order to save time during the design step and simplify the source handling. ModLum
specifications and principles are presented. Finally, an application is presented: the
illumination project of two cloisters in Quito (Ecuador, South America).
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