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+ARB_texture_float:
+
+ Silicon Graphics, Inc. owns US Patent #6,650,327, issued November 18,
+ 2003 [1].
+
+ SGI believes this patent contains necessary IP for graphics systems
+ implementing floating point rasterization and floating point
+ framebuffer capabilities described in ARB_texture_float extension, and
+ will discuss licensing on RAND terms, on an individual basis with
+ companies wishing to use this IP in the context of conformant OpenGL
+ implementations [2].
+
+ The source code to implement ARB_texture_float extension is included
+ and can be toggled on at compile time, for those who purchased a
+ license from SGI, or are in a country where the patent does not apply,
+ etc.
+
+ 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.
+
+ You should contact a lawyer or SGI's legal department if you want to
+ enable this extension.
+
+
+[1] http://www.google.com/patents/about?id=mIIOAAAAEBAJ&dq=6650327
+[2] http://www.opengl.org/registry/specs/ARB/texture_float.txt