Realtime Technology (www.rttusa.com) is changing the way suppliers and OEMs interact with CAD data through its DeltaGen visualization software, which renders 3D images of vehicles and components in real-time for review and validation. The goal is to help OEMs and suppliers reduce the number of physical prototypes required before production approval, reducing cost and improving efficiency. “As a specific example, I can tell you that Porsche reduced the number of physical prototypes on its upcoming Panamera down to two using DeltaGen, compared to as many as 10 in the past,” says Peter Stevenson, chief operating officer of RTT. While the company’s tools are used in a number of OEM design studios throughout the world, Stevenson says RTT is looking to expand into the supplier community. “Suppliers will be able to show OEMs their concepts in 3D with high-definition detail without having to build a single property.”
Stevenson says what makes RTT’s technology unique is its ability to limit the amount of CAD data needed to render a file. If the designer wants to only view the exterior design, the software does not extrapolate the data used for rendering suspension or ancillary components. “We’re using a light file structure, which allows us to compute the data at a rate of 15 frames per second,” he says.
RTT is developing new software upgrades—RealView2—to help improve virtual visualization of vehicle and component designs by superimposing the CAD designs on existing physical models. During a demonstration, a subject held a physical tire with a bar-coded strip in the middle. By pointing a camera at the barcode, the system was able to render a specific wheel design into the tire that could be manipulated by turning the tire in different directions to verify gloss and overall appearance. Even more amazing, light reflection could be tested in real-time by holding a light up to the bar-coded tire. Stevenson says RealView can be used to visualize human-machine interface solutions on physical models, while also providing for real-time texture validation on CAD or physical models.
The company is also planning to integrate CFD data into its software so engineers and designers can conduct real-time visualization of the effects exterior design changes pose on aerodynamic performance. Stevenson says the company plans to have the updated RealView and CFD systems on the market in January 2009.—KMK