Abstract: Disclosed herein are systems and methods for controlling illumination in a greenhouse, comprising obtaining a geometric model of a greenhouse comprising a grow space segmented to a plurality of grow sections each associated with a respective one of a plurality of dimmable lamps having an illumination area overlapping the respective grow section, computing a shade model for the greenhouse based on the geometric model, the shade model defines, for each of the plurality of grow sections, a respective shading pattern indicative of a level of direct sun light in the respective grow section, enhancing the shade model using one or more machine learning models trained to predict the level of direct sun light in each grow section, and operating one or more of the plurality of dimmable lamps based on the enhanced shade model to illuminate its associated grow section according to one or more illumination rules.