Accelerad is a free suite of programs for lighting and daylighting analysis and visualization. The suite uses physically-based backward ray tracing algorithms described in our recent papers [1, 2] and inspired by Lawrence Berkeley National Laboratory’s popular Radiance software suite by Greg Ward. These algorithms are accelerated up to twenty times faster using OptiX™, a ray tracing engine built for the graphics processor unit (GPU). The acceleration factor scales with the number of available GPUs and is expected to increase on new generations of hardware. In order to allow for smooth adoption among Radiance users and software developers, Accelerad maintains compatibility with Radiance scene and output file formats and uses a subset of Radiance’s material modifiers and command-line arguments.

This software includes source code and binary libraries from the following sources. Before proceeding, users must read and agree to this license agreement and the license agreements of all software included in or distributed with Accelerad:

End User License Agreement

MIT holds the exclusive, worldwide license to distribute and further develop Accelerad.

This END USER LICENSE AGREEMENT ("EULA") is a legal agreement between you, in your capacity as an individual and/or as an agent for your company, institution or other entity (called herein the "User"), and MIT for Accelerad, which includes computer software and may include associated media, printed materials, and electronic documentation.

Downloading, installing, using, or copying Accelerad by the User or a third party indicates that the User agrees to be bound by the terms and conditions that follow.

If you do not agree to the terms of this EULA, do not install or use Accelerad.

The User is granted and accepts, a non-transferable and non-exclusive license to use Accelerad only in the manner described in this EULA. All proprietary interest, right, title, and copyright in the Software which are not explicitly granted to you herein remain with MIT.

Accelerad is licensed, not sold. Therefore, you must treat this Software just like a book or any other copyrighted material (e.g., recordings or film). You may make archival copies of the Software. You may not distribute any portion of the Software or materials accompanying the Software.

IN NO EVENT SHALL MIT BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE, EVEN IF MIT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

MIT SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS PROVIDED "AS IS".

MIT HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS OR MODIFICATIONS.

This agreement is governed by the laws of the State of Massachusetts.

Radiance

The Radiance Software License, Version 1.0

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
The end-user documentation included with the redistribution, if any, must include the following acknowledgment:
"This product includes Radiance software (http://radsite.lbl.gov/) developed by the Lawrence Berkeley National Laboratory (http://www.lbl.gov/)."
Alternately, this acknowledgment may appear in the software itself, if and wherever such third-party acknowledgments normally appear.
The names "Radiance," "Lawrence Berkeley National Laboratory" and "The Regents of the University of California" must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact radiance@radsite.lbl.gov.
Products derived from this software may not be called "Radiance", nor may "Radiance" appear in their name, without prior written permission of Lawrence Berkeley National Laboratory.

THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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This software consists of voluntary contributions made by many individuals on behalf of Lawrence Berkeley National Laboratory. For more information on Lawrence Berkeley National Laboratory, please see <http://www.lbl.gov/>.

Parallel K-Means Data Clustering

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

CUDA®

This distribution includes CUDA® binary libraries under the terms of Chapter 1 of the End User License Agreement for the NVIDIA® CUDA® Toolkit, found at http://mit.edu/sustainabledesignlab/projects/Radiance/CUDA_EULA.pdf. Users agree to the terms of that license, including the following restrictions:

the Redistributable SOFTWARE shall be distributed solely in binary form to Licensee's licensees ("Customers") only as a component of Licensee's own software products (each, a "Licensee Application");
Licensee shall design the Licensee Application such that the Redistributable SOFTWARE files are installed only in a private (non-shared) directory location that is used only by the Licensee Application;
Licensee shall obtain each Customer's written or clickwrap agreement to the license terms under a written, legally enforceable agreement that has the effect of protecting the SOFTWARE and the rights of NVIDIA under terms no less restrictive than this Agreement.

OptiX™

This distribution includes OptiX™ binary libraries under the terms of the Software License Agreement for the NVIDIA® OptiX™ ray tracing engine, found at http://mit.edu/sustainabledesignlab/projects/Accelerad/OptiX_EndUserLicense.pdf. Users agree to the terms of that license, including the following restrictions:

they will maintain a valid copyright on the end-user application;
they are prohibited from modifying, adapting, translating, reverse engineering, decompiling, disassembling, or creating derivative works, in whole or in part, based on the Software, nor may they attempt in any manner to obtain the source code;
they disclaim any and all warranties on behalf of NVIDIA and other applicable licensors;
they disclaim, to the maximum extent permitted by law, NVIDIA’s, its affiliated companies and its licensors' liability for all damages, direct or indirect, incidental or consequential, that may arise from any use of the Software;
they agree not to export the Software, directly or indirectly, in violation of U.S. export control laws or any export or import regulations in other countries; and
they will, without limitation, indemnify, hold harmless, and defend NVIDIA and other applicable licensors and their respective affiliates and suppliers from and against any and all claims, lawsuits, costs, and expenses, including attorney's fees, that arise or result from their use or distribution of the end-user application.