A Study on an Automated Facade Visibility Analysis Framework Using BIM-based Ray-casting - Implementation of Quantitative Visibility Index Calculation and Data Feedback in the Revit–Dynamo Integrated Environment -

Jae-Hyo Jeong; Hyo-Jung Joo; Dong-Jin Kim

doi:10.13161/kibim.2026.16.2.012

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2026 Vol.16, Issue 2 Preview Page

Research Article

A Study on an Automated Facade Visibility Analysis Framework Using BIM-based Ray-casting - Implementation of Quantitative Visibility Index Calculation and Data Feedback in the Revit–Dynamo Integrated Environment - BIM 기반 Ray-casting을 활용한 건축물 입면 가시성의 자동화 분석 프레임워크 연구 - Revit–Dynamo 통합 환경에서의 정량적 가시성 지수 산출 및 데이터 피드백 구현 -

30 June 2026. pp. 12-23

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Abstract

In high-density urban environments, the visual exposure of a building's facade is a critical factor in pedestrian experience and commercial viability, yet conventional two-dimensional visibility methods such as Isovist theory and Visibility Graph Analysis remain limited in three-dimensional urban contexts. This study proposes an automated facade visibility analysis framework operating entirely within an integrated Revit–Dynamo environment, in which a Ray-casting algorithm implemented via Python Script determines geometric intersection between observation viewpoints and UV-parameterized facade evaluation points without reliance on external software. The resulting Hit Ratio (HR) indices are recorded directly into BIM Shared Parameters and visualized through Revit View Filters, establishing a quantitative data feedback loop that supports objective, data-driven facade design decision-making from the early stages of architectural planning.

Keywords

BIM

입면 가시성

레이캐스팅

정량적 분석

가시성 지수

도시 맥락

자동화 워크플로우

키워드

BIM

Revit-Dynamo

Facade Visibility

Ray-casting

Quantitative Analysis

Automated Workflow

References

Bartie, P., Reitsma, F., Kingham, S., Mills, S. (2010). Advancing Visibility Modelling Algorithms for Urban Environments, Computers, Environment and Urban Systems, 34(6), pp. 518-531.

10.1016/j.compenvurbsys.2010.06.002

Benedikt, M. L. (1979). To Take Hold of Space: Isovists and Isovist Fields, Environment and Planning B: Planning and Design, 6(1), pp. 47-65.

10.1068/b060047

Fisher-Gewirtzman, D., Wagner, I. A. (2003). Spatial Openness as a Practical Metric for Evaluating Built-Up Environments, Environment and Planning B: Planning and Design, 30(1), pp. 37-49.

10.1068/b12861

Hillier, B., Hanson, J. (1984). The Social Logic of Space. Cambridge University Press, pp. 1-25.

10.1017/CBO9780511597237

Jung, J. W., Seo, J. H., Park, H. J., Chu, S. Y. (2019). Implementation and Verification of 4D and 5D Design Support Algorithm Using BIM Property Information, Journal of the Regional Association of Architectural Institute of Korea, 21(4), pp. 15-26.

Kim, H., Yi, Y. K. (2019). QuVue Implementation for Decisions Related to High-rise Residential Building Layouts, Building and Environment, 148, pp. 116-127.

10.1016/j.buildenv.2018.10.055

Kim, Y. W. (2003). A Study on the Relationship between Properties of Spatial Configuration and Patterns of Space Use using Space Syntax, Journal of Korea Planners Association, 38(4), pp. 7-20.

Koltsova, A., Tunçer, B., Schmitt, G. (2013). Visibility Analysis for 3D Urban Environments, Proceedings of the 31st eCAADe Conference, Delft, Netherlands, pp. 375-383.

10.52842/conf.ecaade.2013.2.375

Lagios, K., Niemasz, J., Reinhart, C. F. (2010). Animated Building Performance Simulation (ABPS) – Linking Rhinoceros/Grasshopper with Radiance/Daysim, Proceedings of SimBuild, 4(1), pp. 321-327.

Morello, E., Ratti, C. (2009). A Digital Image of the City: 3D Isovists in Lynch's Urban Analysis, Environment and Planning B: Planning and Design, 36(5), pp. 837-853.

10.1068/b34144t

Park, S. H., Han, J. S., Cho, C. W. (2018). A Study on Korea Building Information Level for Implementation and Application of BIM-based Architecture Information, Journal of the Korean Society for Computational Design and Engineering, 23(3), pp. 285-297.

10.7315/CDE.2018.285

Porta, S., Crucitti, P., Latora, V. (2006). The Network Analysis of Urban Streets: A Primal Approach, Environment and Planning B: Planning and Design, 33(5), pp. 705-725.

10.1068/b32045

Roudsari, M. S., Pak, M. (2013). Ladybug: A Parametric Environmental Plugin for Grasshopper to Help Designers Create an Environmentally-Conscious Design, Proceedings of BS2013, Chambéry, France, pp. 3128-3135.

Stamps, A. E. (2005). Visual Permeability, Locomotive Permeability, Safety, and Enclosure, Environment and Behavior, 37(5), pp. 587-619.

10.1177/0013916505276741

Turner, A. (2004). Depthmap 4: A Researcher's Handbook. Bartlett School of Graduate Studies, UCL, pp. 1-49.

Turner, A., Doxa, M., O'Sullivan, D., Penn, A. (2001). From Isovists to Visibility Graphs: A Methodology for the Analysis of Architectural Space, Environment and Planning B: Planning and Design, 28(1), pp. 103-121.

10.1068/b2684

Yang, P. P. J., Putra, S. Y., Li, W. (2007). Viewsphere: A GIS-based 3D Visibility Analysis for Urban Design Evaluation, Environment and Planning B: Planning and Design, 34(6), pp. 971-992.

10.1068/b32142

Yi, Y. K., Kim, H. (2017). Universal Visible Sky Factor: A Method for Calculating the Three-dimensional Visible Sky Ratio, Building and Environment, 123, pp. 390-403.

10.1016/j.buildenv.2017.06.044

Yoo, E. S., Ma, J. H., Choi, J. S. (2021). A Study on the Application of BIM-based Barrier-Free Certification Evaluation Process Automation, Journal of the Korean Society for Computational Design and Engineering, 26(4), pp. 418-427.

10.7315/CDE.2021.418

Information

Publisher :Journal of KIBIM
Publisher(Ko) :한국BIM학회
Journal Title :Journal of KIBIM
Journal Title(Ko) :한국BIM학회논문집
Volume : 16
No :2
Pages :12-23
Received Date : 2026-06-05; 2026-06-26
Accepted Date : 2026-06-29
DOI :https://doi.org/10.13161/kibim.2026.16.2.012

Journal of KIBIM ISSN:2288-1697(Print) 2288-1697(Online) 한국BIM학회논문집

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