Share BIM Models with Virtual Building Explorer

4 Nov, 2010 By: Matthew Brewster

ArchiCAD Insights Tutorial: Communicate designs to your clients with Graphisoft's visualization tools.

Editor's note: This tutorial courtesy of Graphisoft.

Building information modeling (BIM) assists the design process for many architects today. Being able to visualize complex structures in 3D allows designers to make better-informed decisions before earth is moved and trees are cut. Likewise, photorealistic renderings and animations help clients understand a finished design — but they can take a considerable amount of time to produce. So, how can you utilize BIM models to quickly and effectively communicate with your clients?

Among BIM's many uses, visualization is at the top of the list for most users. Early in the design process, many options are explored and materials are discussed. Common solutions involve taking clients for a tour through the virtual model as they navigate in the BIM application, or presenting them with screen snapshots that have been printed out. Historically, neither method has been ideal, because the working environment in BIM can be somewhat crude.

In answer to this dilemma, Graphisoft recently introduced new ways to view BIM models. For example, ArchiCAD 14 includes the ability to display shadows in OpenGL. For the design process, sun studies can be generated as quickly as the model is adjusted. These same views can be used to present the design model to clients with almost photorealistic quality.

To create a quick sun study, first turn on Sun Shadows in View > 3D View Mode > 3D Window Settings. In this case, I would also recommend turning Contours off.

Second, go back to the View > 3D View Mode menu and open 3D Projection Settings. In this window, click the More Sun button. This is where you can set the location, date, and time of day for accurate shadow casting. Also, make sure you set Project North correctly in the Options menu.

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About the Author: Matthew Brewster

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