Revision control
++ Redistribution and use of this software 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.
++
++ * Neither the name of the assimp team, nor the names of its
++ contributors may be used to endorse or promote products
++ derived from this software without specific prior
++ written permission of the assimp team.
++
++ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ "AS IS" AND ANY EXPRESS 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 THE COPYRIGHT
++ OWNER OR 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.