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With the increasing complexity of the internal structure of university classrooms and the increasing amount of time humans spend indoors, indoor classroom scenes have become an important part of people’s daily lives. Compared with open outdoor space, indoor environments are more complex in terms of 3D models, spatial layouts, feature types, and connectivity relationships, especially for large indoor buildings that often contain a large amount of information. This paper introduces the development tools and common rendering techniques of Unity3D game engine, explores the visualization model of a single object, designs a regional comparison algorithm to calculate the visualization intensity, and establishes a 3D visualization intensity mapping table. The classroom is equipped with visualization effect, which makes students get comfortable and at ease in classroom learning, and the comfort level of this paper’s solution is improved by 8% compared with other IoT-based solutions.

Classroom Visualization Based on the Relationship between User Roles and Scene Content