Didn't the unisys(sp?) one expire literally a decade ago, and all others 7 to 8?
On Tue, Apr 30, 2013 at 10:37 AM, Matt Lind <[email protected]>wrote: > Probably for the .TIFF lzw thingy.**** > > ** ** > > ** ** > > ** ** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Raffaele Fragapane > *Sent:* Monday, April 29, 2013 5:32 PM > > *To:* [email protected] > *Subject:* Re: Pixar OpenSubdiv and Autodesk webinar**** > > ** ** > > I stand corrected, had been told otherwise time ago though. > > I'm curious then, what was the Pixar licensing/copyright notice for then?* > *** > > ** ** > > On Tue, Apr 30, 2013 at 10:19 AM, Luc-Eric Rousseau <[email protected]> > wrote:**** > > Softimage didn't license from pixar and the tessellation and creasing > implementation are not the same. > On the maya side, it's been co-developed and licensed from pixar and > fully compatible.**** > > > On Mon, Apr 29, 2013 at 7:49 PM, Raffaele Fragapane > <[email protected]> wrote: > > Pixar's SDS "technology" has been licensed from everybody and their dog > for > > years, actually. > > Thanks to some patents granted on creasing it was either doing that, or > > risking litigation, or offsetting whole sets of features from the way > they > > would have looked in PRMan. > > > > In theory only the RR semi-sharp creasing algorithm is patented, and some > > vendors worked around it with different methods, but it's always been > > slightly ubiquitous and many bigger fishes decided not to risk it, or > simply > > to align to PRMan's look for those, and license away. > > > > Soft has had the same Pixar licensing note forever, and Houdini could > render > > creases in SDS in PRMan for ages, but not in Mantra, due to the same > patents > > (RR SS creasing). Air, 3Delight and MRay work around it with different > > algorithms. > > > > This new openSubD stuff is really interesting, I do resent they had to go > > for the MS open source licensing though (MS-Pl I think), but it seemed > > unavoidable given the collaboration, and all in all it's not too bad a > > license anyway.**** > > > > > -- > Our users will know fear and cower before our software! Ship it! Ship it > and let them flee like the dogs they are!**** > -- Our users will know fear and cower before our software! Ship it! Ship it and let them flee like the dogs they are!
