UIST '26
Projective walls, floors, and windows: aligned plane interactions for interior architectural design in VR
Hanbee Jang
Seung-Jun Lee
Seok-Hyung Bae
In interior architecture, fundamental elements, such as walls, floors, and windows, profoundly shape the spatial experience through their dimensions and arrangement. In this study, we present a novel VR interaction technique that allows interior architectural designers to experience a space at full scale while precisely creating these elements. Our technique achieves this by projectively aligning an on-demand, virtual handheld plane with remote surfaces. By first analyzing a renowned architectural textbook, we found that all fundamental interior elements can be created through a unified three-step procedure of defining a plane, sketching a profile, and extruding a volume. Through physical prototyping, we then established that a single virtual handheld plane can seamlessly integrate all three steps into a continuous workflow. Finally, we implemented this concept as a set of VR interactions and reproduced three iconic interior spaces that collectively encompass all 13 fundamental element types. These reproductions demonstrate that our concise interaction technique is sufficiently expressive to construct complex, real-world interior spaces.
