Kitware Provides Software Process Support to Radiance Project

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Open-source leader teams with NREL to deliver back-end software support.

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This latest project is yet another demonstration of CMake’s ability to deliver a flexible, cross-platform solution that can manage the software build process.

Kitware, one of the nation’s leading open-source software companies, today announced a collaborative effort with the National Renewable Energy Laboratory (NREL), a facility of the U.S. Department of Energy (DOE), on implementing important back-end software processes for the Radiance Project.

Originally developed at the Lawrence Berkeley National Laboratory (LBNL) under DOE funding, Radiance provides lighting engineers and researchers worldwide with physically-based simulation tools for daylighting, electric lighting and energy analysis of buildings. The project’s principal author was Greg Ward of Anyhere Software, who continues to provide oversight to the project’s evolution.

CMake, Kitware’s cross-platform system for building, testing and packaging software, was implemented by Kitware and NREL as part of their efforts to incorporate Radiance-based simulation capabilities within OpenStudio, NREL’s own open-source suite of software tools. The use of CMake for Radiance will allow for nightly building and testing of the Radiance HEAD release and will provide automatic updates of any detected build or testing errors.

“This latest project is yet another demonstration of CMake’s ability to deliver a flexible, cross-platform solution that can manage the software build process,” said Bill Hoffman, Vice President and Chief Technology Officer at Kitware. “The Radiance project provides Kitware with another opportunity to collaborate and deliver the necessary open-source tools that other companies and government agencies are looking to integrate within their existing systems.”

CMake was created by Kitware in 2000, spearheaded by Bill Hoffman, with funding from the National Library of Medicine (NLM). It was developed in response to a need for a powerful build environment for the Insight Segmentation and Registration Toolkit (ITK).

Kitware also contributed a new Qt-based graphical user interface for the Radiance Scene Viewer that runs on Windows, Mac and Linux operating systems. Both of these contributions enable a wider scope of researchers to access and use Radiance, either on their own or through OpenStudio. With these new implementations, NREL is encouraging more developers and users to take part in the Radiance project and contribute their own systems to the dashboard in order to create a diverse testing environment.

About Kitware
Kitware, Inc. is a leader in the creation and support of open-source software and state-of-the-art technology, and is one of the fastest growing software companies in the country. Kitware leverages its open-source communities and diverse technical expertise to provide advanced custom solutions for a host of complex technical problems.

Founded in 1998, Kitware's team is widely recognized for their major contributions to a variety of open-source software systems including the Visualization Toolkit (VTK), the Insight Segmentation and Registration Toolkit (ITK), CMake and ParaView. Kitware has made an impact in the areas of visualization, data management, medical imaging, quality software process, computer vision and informatics. Among Kitware's global customers and collaborators are top academic research facilities, government institutions and private corporations worldwide. Kitware's products and services include technology integration, software support, consulting, custom application development and training and productivity tools that leverage open source systems. For more information, please visit


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Nicole Messier
Corporate Communications for Kitware Inc
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