1ARB_texture_float: 2 3 Silicon Graphics, Inc. owns US Patent #6,650,327, issued November 18, 4 2003 [1]. 5 6 SGI believes this patent contains necessary IP for graphics systems 7 implementing floating point rasterization and floating point 8 framebuffer capabilities described in ARB_texture_float extension, and 9 will discuss licensing on RAND terms, on an individual basis with 10 companies wishing to use this IP in the context of conformant OpenGL 11 implementations [2]. 12 13 The source code to implement ARB_texture_float extension is included 14 and can be toggled on at compile time, for those who purchased a 15 license from SGI, or are in a country where the patent does not apply, 16 etc. 17 18 The software is provided "as is", without warranty of any kind, express 19 or implied, including but not limited to the warranties of 20 merchantability, fitness for a particular purpose and noninfringement. 21 In no event shall the authors or copyright holders be liable for any 22 claim, damages or other liability, whether in an action of contract, 23 tort or otherwise, arising from, out of or in connection with the 24 software or the use or other dealings in the software. 25 26 You should contact a lawyer or SGI's legal department if you want to 27 enable this extension. 28 29 30[1] https://www.google.com/patents/about?id=mIIOAAAAEBAJ&dq=6650327 31[2] https://www.opengl.org/registry/specs/ARB/texture_float.txt 32