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Apply CC0 Universal Public Domain Dedication
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‎COPYING.md

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Creative Commons Legal Code
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CC0 1.0 Universal
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CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
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LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
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ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
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INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
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REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
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PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
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THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
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HEREUNDER.
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Statement of Purpose
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The laws of most jurisdictions throughout the world automatically confer
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exclusive Copyright and Related Rights (defined below) upon the creator
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and subsequent owner(s) (each and all, an "owner") of an original work of
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authorship and/or a database (each, a "Work").
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Certain owners wish to permanently relinquish those rights to a Work for
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the purpose of contributing to a commons of creative, cultural and
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scientific works ("Commons") that the public can reliably and without fear
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of later claims of infringement build upon, modify, incorporate in other
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works, reuse and redistribute as freely as possible in any form whatsoever
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and for any purposes, including without limitation commercial purposes.
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These owners may contribute to the Commons to promote the ideal of a free
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culture and the further production of creative, cultural and scientific
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works, or to gain reputation or greater distribution for their Work in
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part through the use and efforts of others.
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For these and/or other purposes and motivations, and without any
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expectation of additional consideration or compensation, the person
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associating CC0 with a Work (the "Affirmer"), to the extent that he or she
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is an owner of Copyright and Related Rights in the Work, voluntarily
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elects to apply CC0 to the Work and publicly distribute the Work under its
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terms, with knowledge of his or her Copyright and Related Rights in the
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Work and the meaning and intended legal effect of CC0 on those rights.
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1. Copyright and Related Rights. A Work made available under CC0 may be
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protected by copyright and related or neighboring rights ("Copyright and
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Related Rights"). Copyright and Related Rights include, but are not
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limited to, the following:
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i. the right to reproduce, adapt, distribute, perform, display,
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communicate, and translate a Work;
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ii. moral rights retained by the original author(s) and/or performer(s);
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iii. publicity and privacy rights pertaining to a person's image or
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likeness depicted in a Work;
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iv. rights protecting against unfair competition in regards to a Work,
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subject to the limitations in paragraph 4(a), below;
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v. rights protecting the extraction, dissemination, use and reuse of data
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in a Work;
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vi. database rights (such as those arising under Directive 96/9/EC of the
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European Parliament and of the Council of 11 March 1996 on the legal
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protection of databases, and under any national implementation
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thereof, including any amended or successor version of such
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directive); and
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vii. other similar, equivalent or corresponding rights throughout the
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world based on applicable law or treaty, and any national
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implementations thereof.
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2. Waiver. To the greatest extent permitted by, but not in contravention
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of, applicable law, Affirmer hereby overtly, fully, permanently,
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irrevocably and unconditionally waives, abandons, and surrenders all of
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Affirmer's Copyright and Related Rights and associated claims and causes
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of action, whether now known or unknown (including existing as well as
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future claims and causes of action), in the Work (i) in all territories
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worldwide, (ii) for the maximum duration provided by applicable law or
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treaty (including future time extensions), (iii) in any current or future
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medium and for any number of copies, and (iv) for any purpose whatsoever,
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including without limitation commercial, advertising or promotional
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purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
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member of the public at large and to the detriment of Affirmer's heirs and
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successors, fully intending that such Waiver shall not be subject to
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revocation, rescission, cancellation, termination, or any other legal or
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equitable action to disrupt the quiet enjoyment of the Work by the public
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as contemplated by Affirmer's express Statement of Purpose.
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3. Public License Fallback. Should any part of the Waiver for any reason
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be judged legally invalid or ineffective under applicable law, then the
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Waiver shall be preserved to the maximum extent permitted taking into
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account Affirmer's express Statement of Purpose. In addition, to the
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extent the Waiver is so judged Affirmer hereby grants to each affected
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person a royalty-free, non transferable, non sublicensable, non exclusive,
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irrevocable and unconditional license to exercise Affirmer's Copyright and
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Related Rights in the Work (i) in all territories worldwide, (ii) for the
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maximum duration provided by applicable law or treaty (including future
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time extensions), (iii) in any current or future medium and for any number
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of copies, and (iv) for any purpose whatsoever, including without
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limitation commercial, advertising or promotional purposes (the
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"License"). The License shall be deemed effective as of the date CC0 was
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applied by Affirmer to the Work. Should any part of the License for any
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reason be judged legally invalid or ineffective under applicable law, such
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partial invalidity or ineffectiveness shall not invalidate the remainder
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of the License, and in such case Affirmer hereby affirms that he or she
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will not (i) exercise any of his or her remaining Copyright and Related
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Rights in the Work or (ii) assert any associated claims and causes of
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action with respect to the Work, in either case contrary to Affirmer's
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express Statement of Purpose.
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4. Limitations and Disclaimers.
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a. No trademark or patent rights held by Affirmer are waived, abandoned,
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surrendered, licensed or otherwise affected by this document.
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b. Affirmer offers the Work as-is and makes no representations or
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warranties of any kind concerning the Work, express, implied,
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statutory or otherwise, including without limitation warranties of
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title, merchantability, fitness for a particular purpose, non
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infringement, or the absence of latent or other defects, accuracy, or
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the present or absence of errors, whether or not discoverable, all to
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the greatest extent permissible under applicable law.
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c. Affirmer disclaims responsibility for clearing rights of other persons
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that may apply to the Work or any use thereof, including without
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limitation any person's Copyright and Related Rights in the Work.
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Further, Affirmer disclaims responsibility for obtaining any necessary
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consents, permissions or other rights required for any use of the
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Work.
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d. Affirmer understands and acknowledges that Creative Commons is not a
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party to this document and has no duty or obligation with respect to
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this CC0 or use of the Work.

‎aabb.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef AABBH
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#define AABBH
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#include "ray.h"
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#endif
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‎aarect.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef AARECTH
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#define AARECTH
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‎box.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef BOXH
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#define BOXH
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‎bvh.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef BVHH
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#define BVHH
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‎camera.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef CAMERAH
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#define CAMERAH
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#include "ray.h"
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};
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#endif
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‎constant_medium.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef CMEDH
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#define CMEDH
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#define CMEDH
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#include "hitable.h"
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#include <float.h>

‎hitable.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef HITABLEH
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#define HITABLEH
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#define HITABLEH
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#include "aabb.h"
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#include <float.h>
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#endif
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‎hitable_list.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef HITABLELISTH
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#define HITABLELISTH
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‎main.cc

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#include <iostream>
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#include "sphere.h"
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#include "moving_sphere.h"
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‎material.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef MATERIALH
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#define MATERIALH
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struct hit_record;
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refracted = ni_over_nt*(uv - n*dt) - n*sqrt(discriminant);
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return true;
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}
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else
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}
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float fuzz;
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};
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class dielectric : public material {
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class dielectric : public material {
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public:
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dielectric(float ri) : ref_idx(ri) {}
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virtual bool scatter(const ray& r_in, const hit_record& rec, vec3& attenuation, ray& scattered) const {
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vec3 outward_normal;
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vec3 reflected = reflect(r_in.direction(), rec.normal);
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float ni_over_nt;
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attenuation = vec3(1.0, 1.0, 1.0);
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attenuation = vec3(1.0, 1.0, 1.0);
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vec3 refracted;
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float reflect_prob;
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float cosine;
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‎moving_sphere.h

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//==================================================================================================
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// Written in 2016 by Peter Shirley <[email protected]>
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//
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// To the extent possible under law, the author(s) have dedicated all copyright and related and
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// neighboring rights to this software to the public domain worldwide. This software is distributed
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// without any warranty.
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//
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// You should have received a copy (see file COPYING.md) of the CC0 Public Domain Dedication along
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// with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
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//==================================================================================================
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#ifndef MOVINGSPHEREH
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#define MOVINGSPHEREH
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}
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// replace "center" with "center(r.time())"
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bool moving_sphere::hit(const ray& r, float t_min, float t_max, hit_record& rec) const {
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vec3 oc = r.origin() - center(r.time());
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#endif
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