Lighting Design and Illuminating Engineering

Free Software

Daylight 1-2-3 – software for daylighting and energy performance of sidelit and/or toplit private offices, open plan offices, and classrooms

Daysim – Advanced software for dynamic daylighting simulation

SkyVision – software for daylighting and thermal analysis of skylight performance


ByHeart Consultants – radiosity rendering for architecture and lighting design

Lighting Sciences Canada – professional services in optics, vision, and illumination

Pasini Lighting Services – commercial, industrial, institutional, outdoor lighting and daylighting design, evaluation and audits (Ivan Pasini, e-mail: ivaldo at