Explaining the role of cast shadow on the perception of architectural form

Perception is a process based on the combination of sensory information and expectations based on experience through which a person selects the necessary data based on his needs from his surrounding environment. cast shadow, as the concept of light passing through the architectural form, plays a significant role in the viewer’s understanding of the building. this research is of a descriptiveanalytical type, which has a development aim. still, its fundamental characteristic can be pointed out, especially in explaining the depth of the theoretical foundations, the proposed model, and the framework. the collection method was library and survey, and sampling. to express the role of shadows in the perception of architecture, this research tried to describe the factors and indicators that are effective in the perceptual process. after examining the basic structure, factors were extracted from the research framework, using the delphi method as the final indicator. a proposal is presented in the form of a structural model. finally, it was found that the volumetric structure, time, roughness, and depth indexes have the highest scores with an average of 5.96, 5.30, 5.21, and 5.20, respectively, and as a result, they have the most significant impact. in future research, methods such as hse were used to examine the qualitative states of the respondents and the type of interview and its testing. they evaluated its results in a specific architectural building.