VELUX Daylight Visualizer is a free, professional daylighting simulation software developed by the roof window manufacturer VELUX. It allows architects, engineers, and building professionals to accurately calculate, evaluate, and predict natural light levels inside a building before construction or renovation. Unlike standard 3D rendering programs that only generate visual images, this tool provides precise photometric data regarding the exact quantity and distribution of daylight within a space. Core Technical Capabilities
Climate-Based Daylight Modeling (CBDM): The tool incorporates local climate data, orientation, latitude, and direct sunlight to track realistic, year-round illumination rather than basic static overviews.
Daylight Factor Calculations: It quantifies the Daylight Factor (DF) as a percentage of available outdoor light over an indoor work plane.
Advanced Metrics: It computes complex metrics including useful daylight illuminance, daylight autonomy, luminance maps, and full total annual illumination profiles.
Material Properties: The engine recognizes specific reflection, reflectance, and light transmittance parameters for walls, facade windows, and roof windows. Key Benefits & Compliance VELUX Daylight Visualizer
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