The RenderMan Interface - Paul Bourke

Statement About Pixar’s Copyright and Trademark Rights for the
RenderMan 3-D Scene Description Interface
The RenderMan 3-D Scene Description Interface, created by Pixar, is used for describing
three-dimensional scenes in a manner suitable for photorealistic image synthesis. The RenderMan
Interface specifies procedure calls that are listed collectively in the Procedures List
appendix (Appendix F) to the RenderMan Interface document. The RenderMan Interface
Bytestream (“RIB”) is a byte-oriented protocol for specifying requests to the RenderMan
Interface, and specifies a set of encoded requests according to the methods described in the
RenderMan Interface document.
Pixar owns the copyrights in the RenderMan Interface and RIB including the Procedures
List, Binary Encoding table and the RenderMan written specifications and manuals. These
may not be copied without Pixar’s permission. Pixar also owns the trademark “Render-
Man”.
Pixar will enforce its copyrights and trademark rights. However, Pixar does not intend to
exclude anyone from:
(a) creating modeling programs that make RenderMan procedure calls or RIB requests.
(b) creating rendering systems that execute the RenderMan procedure calls or RIB requests
provided a separate written agreement is entered into with Pixar.
Permitted Use of the RenderMan Interface by Modelers
Pixar gives permission for you to copy the procedure calls included the Procedures List
and the encoded requests in the Binary Encoding table for writing modeling programs
that use the RenderMan Interface. Any program that incorporates any of the RenderMan
procedure calls or RIB requests must include the proper copyright notice on each program
copy. The copyright notice should appear in a manner and location to give reasonable
notice of Pixar’s copyright, as follows:
The RenderMan R○ Interface Procedures and Protocol are:
Copyright 1988, 1989, 2000, Pixar
All Rights Reserved
The right to copy the RenderMan procedures from the Procedures List does not include the
right to copy the RenderMan documentation or manuals, or the programming code in any
Pixar products, in whole or in part, in any manner except as described above.
Written License for Use of the RenderMan Interface by Renderers
A no-charge license is available from Pixar for anyone who wishes to write a renderer that
uses the Pixar RenderMan procedure calls or RIB requests. This license must be in writing.
Limited Use of the Trademark “RenderMan”
The trademark “RenderMan” should refer only to the scene description interface created
by Pixar. Anyone that creates a routine or computer program that includes any of the
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