On Fri, Jan 2, 2015 at 5:09 AM, Mikhail Rachinskiy <wellmader...@gmail.com> wrote: > Hi Campbell, I think by “Nurbs Weights” Ronan ment this: > http://wiki.blender.org/index.php/Doc:2.4/Manual/Modeling/Curves#Weight > Which is not working since 2.5
It works, try change the W value. > But (for me) this is not really an issue since Blender's control point > weight interpolation isn't nearly accurate anyway: > http://www.blender.org/forum/viewtopic.php?p=3426&sid=811ac0150dae2688cd55939d8410423f > I'd be happy if surfaces were completly removed from Blender (since they're > by fact useless) and developer concentraited on getting curves (both Bezier > and Nurbs) to a decent Maya/3dsMax level, and getting libs such as > openNURBS to be able to import nurbs as meshes in Blender (like Modo does). > > How is the GSoC openNURBS integration project is going on by the way? > Haven't heard about it lately. > > -- > Regards, > Mikhail Rachinskiy > jewelcourses.com > rachinskiy.com > > On Thu, Jan 1, 2015 at 5:02 PM, Campbell Barton <ideasma...@gmail.com> > wrote: > >> On Tue, Dec 30, 2014 at 12:41 AM, Ronan Ducluzeau <zeau...@gmail.com> >> wrote: >> > I just want to remind that currently nurbs weights are not working in >> > master since 2.5. >> >> Tested, they work for nurbs curves & surfaces, but rather you use the >> bug tracker if you found some case where they fail. >> >> > If someone is interested into improving Blender's nurbs; there is a lot >> to >> > do, anyways. >> > >> > 2014-12-29 1:47 GMT+01:00 Campbell Barton <ideasma...@gmail.com>: >> > >> >> Heres a patch on Blender, >> >> Removed the restriction of power-of-2 curve resolution. >> >> https://developer.blender.org/P183 >> >> >> >> However I don't see any significant advantage this offers over >> >> existing nurbs calculation method, even though its quite efficient, it >> >> would need to be extended to support different orders (currently >> >> hard-coded to order-4), cyclic curves, nurbs weights etc... >> >> >> >> Just posting the patch for reference if anyone likes to check on the >> code. >> >> >> >> On Mon, Dec 29, 2014 at 8:03 AM, Campbell Barton <ideasma...@gmail.com> >> >> wrote: >> >> > Its available here: >> >> > http://download.blender.org/ftp/ton/dspline.pdf >> >> > >> >> > On Mon, Dec 29, 2014 at 7:28 AM, joe <joe...@gmail.com> wrote: >> >> >> Do you have a link to a paper? >> >> >> On Sep 28, 2014 10:45 AM, "Fred" <f.hartho...@ziggo.nl> wrote: >> >> >> >> >> >>> Hi Campbell Barton, >> >> >>> >> >> >>> The amount of interpolation dots is 2^i, at the start of the demo >> i = >> >> >>> 4 (16 dots) >> >> >>> if you change i = 7 (the limit in the demo) than there are 128 >> >> >>> interpolation dots. >> >> >>> >> >> >>> if I had set the limit in the demo to 10 then 1024 interpolation >> dots >> >> >>> was possible. >> >> >>> >> >> >>> If the spline is used in a 3 dimensional space, >> >> >>> to compute an interpolated dot position takes: dim * 10 clock >> cycles >> >> = >> >> >>> 30 clock cycles. >> >> >>> I hope that it is fast enough. >> >> >>> >> >> >>> If you like to have a curve to the last plotted dot you have to put >> two >> >> >>> dots on each other at the end. >> >> >>> You will see that it is symmetrical again. >> >> >>> >> >> >>> Please change the number to 7 in the demo and you see a curved line >> in >> >> >>> stead of dots. >> >> >>> >> >> >>> Much more is possible with this spline because the first, second and >> >> >>> third derivative (parameterized ) of the curve >> >> >>> is available in real time. >> >> >>> >> >> >>> I think that much more can be invented with this spline technique. >> >> >>> I think that with some research tangent handles can be constructed >> as >> >> >>> well (if you like them?). >> >> >>> What I did in the demo was the most simple way of using it. >> >> >>> >> >> >>> The essence is: a 3th degree curve in two (x,y) or more directions >> is >> >> >>> differentiated three times, and then again integrated 3 times. >> >> >>> With floating point this is impossible , because it is not exact, >> the >> >> >>> curve runs away. >> >> >>> But with integer computing it is exact and the spline exact a 3th >> >> degree >> >> >>> curve. >> >> >>> >> >> >>> It can also be used in ten or more directions, but more then 3 >> >> >>> dimensions (x,y,z) is not practical. >> >> >>> >> >> >>> Fred. >> >> >>> -------------------------------------- >> >> >>> Fred schreef op 28-9-2014 om 18:30: >> >> >>> > That is in the demo the case, because I programmed that the first >> >> plot >> >> >>> > point is actually two points. >> >> >>> > the spline uses 4 points p0, p1, p2, p3 and the interpolation is >> >> >>> > between p1 and p2. >> >> >>> > >> >> >>> > Campbell Barton schreef op 28-9-2014 om 17:42: >> >> >>> >> Checked the test application, and not sure if this is intended >> but a >> >> >>> >> simple triangle has uneven distribution. >> >> >>> >> >> >> >>> >> see: http://www.graphicall.org/ftp/ideasman42/fred_curve.png >> >> >>> >> >> >> >>> >> On Mon, Sep 29, 2014 at 1:32 AM, Dan McGrath < >> >> danmcgrath...@gmail.com> >> >> >>> wrote: >> >> >>> >>> Cool, got them. Will take a look later. o/ >> >> >>> >>> >> >> >>> >>> Dan >> >> >>> >>> >> >> >>> >>> On Sun, Sep 28, 2014 at 11:28 AM, Fred <f.hartho...@ziggo.nl> >> >> wrote: >> >> >>> >>> >> >> >>> >>>> Ok, It is uploaded to the directory incoming >> >> >>> >>>> >> >> >>> >>>> Dan schreef op 28-9-2014 om 17:15: >> >> >>> >>>>> You could always upload it to our anonymous ftp via >> >> >>> download.blender.org >> >> >>> >>>>> (or ftp.blender.org) and put it into the incoming directory >> (use >> >> >>> passive >> >> >>> >>>>> mode). From there was can fetch the files via >> >> >>> >>>>> http://download.blender.org/ftp/incoming/ >> >> >>> >>>>> >> >> >>> >>>>> Dan >> >> >>> >>>>> >> >> >>> >>>>> On Sun, Sep 28, 2014 at 11:05 AM, Fred <f.hartho...@ziggo.nl> >> >> wrote: >> >> >>> >>>>> >> >> >>> >>>>>> Campbell Barton >> >> >>> >>>>>> >> >> >>> >>>>>> I have tried to send it but it is rejected. So send me an >> >> addres for >> >> >>> >>>>>> upload. >> >> >>> >>>>>> >> >> >>> >>>>>> fred >> >> >>> >>>>>> >> >> >>> >>>>>> >> >> >>> >>>>>> Campbell Barton schreef op 28-9-2014 om 16:51: >> >> >>> >>>>>>> Could the project files be posted to a public URL?, Id like >> to >> >> be >> >> >>> able >> >> >>> >>>>>>> to look into this. but probably wont have time over the >> coming >> >> >>> weeks. >> >> >>> >>>>>>> >> >> >>> >>>>>>> The main source file compiles for me with minor edits on >> >> >>> >>>>>>> Linux/FreePascal, but the demo relies on `Window` unit, >> which I >> >> >>> assume >> >> >>> >>>>>>> is provided by delphi/windows. >> >> >>> >>>>>>> >> >> >>> >>>>>>> On Mon, Sep 29, 2014 at 12:36 AM, Dan McGrath < >> >> >>> danmcgrath...@gmail.com >> >> >>> >>>>>> wrote: >> >> >>> >>>>>>>> Hey, >> >> >>> >>>>>>>> >> >> >>> >>>>>>>> Just save out the delphi project and zip it up and email it >> >> to me >> >> >>> >>>> direct >> >> >>> >>>>>>>> via email I guess (the mailing list wouldn't allow such a >> >> large >> >> >>> >>>>>>>> attachement). I was attempting to compile it on linux, so >> the >> >> >>> compiled >> >> >>> >>>>>>>> dll's wouldn't be of much use to me unfortunately. >> >> >>> >>>>>>>> >> >> >>> >>>>>>>> Thanks! >> >> >>> >>>>>>>> >> >> >>> >>>>>>>> >> >> >>> >>>>>>>> Dan >> >> >>> >>>>>>>> >> >> >>> >>>>>>>> On Sun, Sep 28, 2014 at 10:06 AM, Fred < >> f.hartho...@ziggo.nl> >> >> >>> wrote: >> >> >>> >>>>>>>> >> >> >>> >>>>>>>>> Hi Dan, >> >> >>> >>>>>>>>> >> >> >>> >>>>>>>>> Of course I can send you the project. >> >> >>> >>>>>>>>> I have made two versions: >> >> >>> >>>>>>>>> 1) The spline is embedded in de demo: >> >> >>> >>>>>>>>> 2) The spline is an external .dll, de demo calls >> PSpline.dll >> >> >>> >>>>>>>>> >> >> >>> >>>>>>>>> Which one do you prefer? >> >> >>> >>>>>>>>> >> >> >>> >>>>>>>>> Fred. >> >> >>> >>>>>>>>> ---------------- >> >> >>> >>>>>>>>> >> >> >>> >>>>>>>>> >> >> >>> >>>>>>>>> >> >> >>> >>>>>>>>> Dan McGrath schreef op 28-9-2014 om 15:42: >> >> >>> >>>>>>>>>> So is/was Turbo Pascal (limited in features; eg: objects >> >> but no >> >> >>> >>>>>> classes) >> >> >>> >>>>>>>>>> and FreePascal+Lazarus (supports almost everything Delphi >> >> does >> >> >>> >>>> still? >> >> >>> >>>>>>>>>> http://wiki.freepascal.org/Lazarus_For_Delphi_Users). >> >> >>> >>>>>>>>>> >> >> >>> >>>>>>>>>> Anyway, just thought it was neat to see code in pascal >> (an >> >> >>> elegant >> >> >>> >>>>>>>>>> language, imho). Curious though, why not just give the >> whole >> >> >>> delphi >> >> >>> >>>>>>>>> project >> >> >>> >>>>>>>>>> and resource files so your forms can be built etc.? The >> code >> >> >>> seems >> >> >>> >>>> to >> >> >>> >>>>>>>>>> compile with some modifications here, but without the {$R >> >> *.DFM} >> >> >>> >>>>>> (*.lfm >> >> >>> >>>>>>>>> in >> >> >>> >>>>>>>>>> fp), one would have to manually rebuild the form :( >> >> >>> >>>>>>>>>> >> >> >>> >>>>>>>>>> >> >> >>> >>>>>>>>>> >> >> >>> >>>>>>>>>> On Sun, Sep 28, 2014 at 8:55 AM, Fred < >> f.hartho...@ziggo.nl >> >> > >> >> >>> wrote: >> >> >>> >>>>>>>>>> >> >> >>> >>>>>>>>>>> It's true, but Delphi is object oriented. >> >> >>> >>>>>>>>>>> >> >> >>> >>>>>>>>>>> Dan McGrath schreef op 28-9-2014 om 14:53: >> >> >>> >>>>>>>>>>>> Standard Pascal, Turbo Pascal, Freepascal, Delphi; same >> >> >>> language, >> >> >>> >>>>>>>>>>> different >> >> >>> >>>>>>>>>>>> dialect :) >> >> >>> >>>>>>>>>>>> >> >> >>> >>>>>>>>>>>> On Sun, Sep 28, 2014 at 8:43 AM, Fred < >> >> f.hartho...@ziggo.nl> >> >> >>> >>>> wrote: >> >> >>> >>>>>>>>>>>>> Actually it is Delphi >> >> >>> >>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>> Dan McGrath schreef op 28-9-2014 om 14:35: >> >> >>> >>>>>>>>>>>>>> Pascal, with inline assembler to boot! \o/ :) >> >> >>> >>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>> On Sun, Sep 28, 2014 at 6:46 AM, Ton Roosendaal < >> >> >>> >>>> t...@blender.org> >> >> >>> >>>>>>>>>>> wrote: >> >> >>> >>>>>>>>>>>>>>> Hi, >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> Fred told me he's not interested in getting >> involved, >> >> or >> >> >>> >>>> setting >> >> >>> >>>>>> up >> >> >>> >>>>>>>>> a >> >> >>> >>>>>>>>>>>>>>> project for his work. >> >> >>> >>>>>>>>>>>>>>> He's retired now and just thought we might be >> >> interested >> >> >>> in a >> >> >>> >>>>>>>>> research >> >> >>> >>>>>>>>>>>>>>> topic he did. >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> I've copied files he sent to me here; >> >> >>> >>>>>>>>>>>>>>> http://download.blender.org/ftp/ton/ >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> It's a Dutch pdf and two pascal files. >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> -Ton- >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> >> >> -------------------------------------------------------- >> >> >>> >>>>>>>>>>>>>>> Ton Roosendaal - t...@blender.org - >> >> www.blender.org >> >> >>> >>>>>>>>>>>>>>> Chairman Blender Foundation - Producer Blender >> >> Institute >> >> >>> >>>>>>>>>>>>>>> Entrepotdok 57A - 1018AD Amsterdam - The >> >> Netherlands >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>> On 28 Sep, 2014, at 9:28, Aditia A. Pratama wrote: >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>>> HI Fred, >> >> >>> >>>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>>> Can you record a screencast/video demo to show how >> it >> >> >>> works? >> >> >>> >>>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>>> Regards, >> >> >>> >>>>>>>>>>>>>>>> On Sep 28, 2014 2:14 PM, "Fred" < >> f.hartho...@ziggo.nl >> >> > >> >> >>> wrote: >> >> >>> >>>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>>>> I forgot to say, I have a two dimensional demo but >> >> it is >> >> >>> >>>>>> working >> >> >>> >>>>>>>>> on >> >> >>> >>>>>>>>>>> a >> >> >>> >>>>>>>>>>>>>>>>> windows computer. >> >> >>> >>>>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>>>> Jacob Merrill schreef op 28-9-2014 om 02:07: >> >> >>> >>>>>>>>>>>>>>>>>> would this make it so you can record F-curves >> over >> >> time >> >> >>> >>>>>> better? >> >> >>> >>>>>>>>>>>>>>>>>> right now recording in the engine gets slower the >> >> >>> longer it >> >> >>> >>>>>> runs, >> >> >>> >>>>>>>>>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>>>>>>>>> >> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>>>>>>>> >> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>>>>>>> >> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>>>>>> >> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>>>>> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>>>> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>>>> >> >> >>> >>>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>>> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>>> >> >> >>> >>>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>>> >> >> >>> >>>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>>> >> >> >>> >>>>>>>>> _______________________________________________ >> >> >>> >>>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>>>>> >> >> >>> >>>>>>>> _______________________________________________ >> >> >>> >>>>>>>> Bf-committers mailing list >> >> >>> >>>>>>>> Bf-committers@blender.org >> >> >>> >>>>>>>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>> _______________________________________________ >> >> >>> >>>>>> Bf-committers mailing list >> >> >>> >>>>>> Bf-committers@blender.org >> >> >>> >>>>>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>>> >> >> >>> >>>>> _______________________________________________ >> >> >>> >>>>> Bf-committers mailing list >> >> >>> >>>>> Bf-committers@blender.org >> >> >>> >>>>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>>> >> >> >>> >>>> _______________________________________________ >> >> >>> >>>> Bf-committers mailing list >> >> >>> >>>> Bf-committers@blender.org >> >> >>> >>>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >>>> >> >> >>> >>> _______________________________________________ >> >> >>> >>> Bf-committers mailing list >> >> >>> >>> Bf-committers@blender.org >> >> >>> >>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >> >> >> >>> > _______________________________________________ >> >> >>> > Bf-committers mailing list >> >> >>> > Bf-committers@blender.org >> >> >>> > http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> > >> >> >>> >> >> >>> _______________________________________________ >> >> >>> Bf-committers mailing list >> >> >>> Bf-committers@blender.org >> >> >>> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >>> >> >> >> _______________________________________________ >> >> >> Bf-committers mailing list >> >> >> Bf-committers@blender.org >> >> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> > >> >> > >> >> > >> >> > -- >> >> > - Campbell >> >> >> >> >> >> >> >> -- >> >> - Campbell >> >> _______________________________________________ >> >> Bf-committers mailing list >> >> Bf-committers@blender.org >> >> http://lists.blender.org/mailman/listinfo/bf-committers >> >> >> > _______________________________________________ >> > Bf-committers mailing list >> > Bf-committers@blender.org >> > http://lists.blender.org/mailman/listinfo/bf-committers >> >> >> >> -- >> - Campbell >> _______________________________________________ >> Bf-committers mailing list >> Bf-committers@blender.org >> http://lists.blender.org/mailman/listinfo/bf-committers >> > _______________________________________________ > Bf-committers mailing list > Bf-committers@blender.org > http://lists.blender.org/mailman/listinfo/bf-committers -- - Campbell _______________________________________________ Bf-committers mailing list Bf-committers@blender.org http://lists.blender.org/mailman/listinfo/bf-committers