BIM Evolved: Hyper-speed rendering: How Gensler turns BIM models into beauty shots in seconds

In search of a fast rendering solution, Gensler looked to the gaming and moviemaking industries for the next breakthrough tool: Octane Render.

Seven seconds. That is all it took for Gensler’s Mark Bassett to generate a geometrically accurate, photorealistic rendering from one of the firm’s Revit models. The colors popped. The lighting and shading were spot on. The materials, finishes, fixtures, and furnishings were precisely represented. There was no need for touch-ups using Photoshop, or tweaks in 3ds Max. Just a few clicks of the mouse and voilà!—a professional-level 3D rendering appeared on Bassett’s monitor.

Creating and refining renderings using traditional methods can be an arduous task, requiring several hours of work by a designer or thousands of dollars in outsourcing costs (and a 24-hour turnaround) to a rendering specialist. Bassett thought there had to be a better way.

A trained architect who is a whiz with computers, Bassett began his career as an architect and eventually transitioned to computer programming, joining the original Revit startup. Following the acquisition by Autodesk, he moved to the AEC side of the business, where he has spent the better part of the past decade helping Gensler integrate BIM tools and streamline project workflows using technology—in addition to practicing architecture.

One of his recent crusades is developing a simple process for creating high-quality renderings on the fly. The growth of BIM and 3D rendering technology, he says, has raised client expectations and placed additional pressure on the Building Team to produce visually striking artwork that accurately depicts the very latest iteration of a project’s design. No longer can renderings be simply representative of the design scheme. And turnaround time on artwork has to be in hours, not days or weeks. 

“We’re getting to the point where even 24 hours isn’t fast enough,” says Bassett. “The deliverables are continuing to be requested at a faster speed.”

THE RISE OF GPU COMPUTING

To find a solution, Bassett turned to the gaming and moviemaking industries, where he learned of a newly developed software tool, called Octane Render, capable of processing photorealistic renderings 50 times faster than Gensler’s current methods.

Developed by Los Angeles-based cloud rendering company Otoy, Octane Render is part of a new breed of ultra-high-speed rendering applications that utilize GPU-accelerated computing methods popularized by the gaming industry. Instead of processing images using a computer’s CPU, Octane Render uses the machine’s graphics processing unit, together with the CPU, to greatly accelerate processing speeds. The results are dramatic, says Bassett.

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