Ok, this gives the orientation I would expect, but the left and right eye views are now switched. Probably and artifact of reversing the azimuth direction...
Nathaniel On Sun, Jan 22, 2017 at 4:06 PM, Gregory J. Ward <gregoryjw...@gmail.com> wrote: > I went ahead and checked in the suggested changes -- give it a try! > > -Greg > > *From: *"Gregory J. Ward" <gregoryjw...@gmail.com> > > *Date: *January 16, 2017 1:32:00 PM PST > > > I can probably make the suggested changes. Let's hear from Mark to see > what he says. I was also wondering about the azimuth direction, but I > don't have a phone or the app I need to check things. > > -Greg > > *From: *Nathaniel Jones <nathaniel...@gmail.com> > > *Date: *January 16, 2017 1:15:01 PM PST > > > I just ran the view360stereo.cal file on a model that I've been working > with. The image that's generated is mirrored left-to-right from what I'd > expect. Other than that, the ODS projection works decently well in my > cardboard viewer. > > A few other notes: The .cal file name in the example in comments doesn't > match the new name of the .cal file. Also, this is perhaps unnecessary, but > I'd like to be able to specify the forward direction to appear in the > center of the image. > > For my own work, I've gone ahead and implemented the ODS view in source > code. I've called it VT_ODS (-vto) and added a new parameter -vi for > inter-pupillary distance. I haven't bothered with the EX and EZ parameters > for neck rotation yet. Also, the implementation isn't complete (I'm not > sure what viewloc() does, for example), but it's working for my purposes. > > Cheers, > > Nathaniel > > On Fri, Jan 13, 2017 at 9:31 PM, Gregory J. Ward <gregoryjw...@gmail.com> > wrote: > >> I checked in the file, renaming it to "view360stereo.cal" in the >> src/cal/cal folder. I made a few modifications, which I hope are >> improvements, but I don't have a viewer that I can test it with. Can >> someone give it a try? >> >> Thanks! >> -Greg >> >> > From: "Gregory J. Ward" <gregoryjw...@gmail.com> >> > Date: January 11, 2017 4:53:07 PM PST >> > >> > Thanks, Mark. >> > >> > I'll take a closer look at it and generate some test images with your >> .cal file. Also, if there are any features people want to have that they >> would feel helpful or important, let us know! >> > >> > -Greg >> > >> >> From: Mark Stock <mst...@umich.edu> >> >> Date: January 11, 2017 4:40:54 PM PST >> >> >> >> Andy, Greg, >> >> >> >> I'm happy to have it included, if it's up to par. I'm not happy with >> >> the neck rotation portion of that code, and if you want the pixel >> >> edges to line up right on azimuth=0, I need to put a 0.5 in there >> >> somewhere. >> >> >> >> Mark >> >> >> >> On 1/11/17, Andy McNeil <mcneil.and...@gmail.com> wrote: >> >>> Hi Greg, >> >>> Mark Stock created the attached cal file for rendering ODS views. If >> it is >> >>> okay with Mark, can we add the cal file to the radiance distribution? >> >>> Andy >> >>> >> >>> >> >>> On Wed, Jan 11, 2017 at 3:20 PM, Gregory J. Ward < >> gregoryjw...@gmail.com> >> >>> wrote: >> >>> >> >>>> Thanks, Andy. >> >>>> >> >>>> Have you already created a .cal file to generate the appropriate ray >> >>>> origins and directions for this? If not, I could take a crack at it. >> >>>> Seems like an easier method than adding a new view type, especially >> since >> >>>> we would need a new parameter for the stereo offset to get it to do >> what >> >>>> we >> >>>> want. >> >>>> >> >>>> Regarding rpiece, you can always use the rtrace -n option to get an >> >>>> equivalent speed-up. >> >>>> >> >>>> Cheers, >> >>>> -Greg >> >>>> >> >>>> *From: *Andy McNeil <mcneil.and...@gmail.com> >> >>>> >> >>>> *Date: *January 11, 2017 1:00:31 PM PST >> >>>> >> >>>> >> >>>> Hi Greg, >> >>>> >> >>>> The viewpoint, or ray origin, is different for each column of pixels >> in a >> >>>> stereo ODS rendering. If you start with a viewpoint, and draw a >> circle >> >>>> with >> >>>> diameter that is the distance between one's pupils, then the origin >> for >> >>>> each ray should be at a point where the ray is tangent to the circle >> (on >> >>>> the left side of the circle for left eye and right side for right >> eye). >> >>>> It's explained & illustrated well here: >> https://developers.google.com/ >> >>>> vr/jump/rendering-ods-content.pdf >> >>>> >> >>>> I don't see how clipping planes could be used to modify the ray >> origin, >> >>>> but I could be wrong. >> >>>> >> >>>> And this goes a ways back in the thread, but one instance where >> smaller >> >>>> than 180° x 360° sized equirectangular views would be necessary is >> if a >> >>>> user wanted to use rpiece to render the full view. >> >>>> >> >>>> Best, >> >>>> Andy >> >>>> >> >>>> >> >>>> On Tue, Jan 10, 2017 at 10:38 AM, Gregory J. Ward >> >>>> <gregoryjw...@gmail.com> >> >>>> wrote: >> >>>> >> >>>>> Hi Victor, >> >>>>> >> >>>>> I thought that there was some trick to doing stereo 360° views that >> >>>>> involved rotating the eye positions with the ray directions to keep >> them >> >>>>> at >> >>>>> right angles. Andy (McNeil), can you help us out? >> >>>>> >> >>>>> -Greg >> >>>>> >> >>>>> *From: *Victor LRG <rio...@gmail.com> >> >>>>> >> >>>>> *Date: *January 10, 2017 2:14:48 AM PST >> >>>>> >> >>>>> >> >>>>> I agree with Nathaniel that the general use would be similar to >> >>>>> cylindrical >> >>>>> or angular fisheye views in terms of view apertures. Personally, I >> use >> >>>>> the equirectangular view in four combinations: 180-360 deg >> horizontally >> >>>>> and >> >>>>> 90-180 deg vertically, and then as a base for other fancier view >> types >> >>>>> when >> >>>>> I need them. >> >>>>> >> >>>>> With regards to the stereo offset I wonder if it could be added >> with a >> >>>>> bit of work using the standard clipping plane offset as an stereo >> one? >> >>>>> >> >>>>> Victor >> >>>>> >> >>>>> On 9 January 2017 at 15:59, Guglielmetti, Robert < >> >>>>> robert.guglielme...@nrel.gov> wrote: >> >>>>> >> >>>>>> I’ll keep an eye out, should this be added to the standard palette >> of >> >>>>>> views in the source. I think it’s pretty easy to add it to the Qt >> >>>>>> rvu... >> >>>>>> >> >>>>>> On 1/8/17, 10:18 AM, "Gregory J. Ward" <gregoryjw...@gmail.com> >> wrote: >> >>>>>> >> >>>>>>> Hi Victor (& Nathaniel), >> >>>>>>> >> >>>>>>> >> >>>>>>> I am happy to take a look at the code and see how much effort it >> would >> >>>>>> be >> >>>>>>> to integrate. I have a question first, however. >> >>>>>>> >> >>>>>>> >> >>>>>>> Is the "equirectangular" view useful for anything less than a full >> >>>>>>> panorama? Would people want to use it for smaller/different >> views, or >> >>>>>> do >> >>>>>>> you always set vertical to 180° and horizontal to 360° in every >> >>>>>>> application? >> >>>>>>> >> >>>>>>> >> >>>>>>> If you only use this view for one purpose, then I wonder if it is >> >>>>>>> really >> >>>>>>> worth having a view implemented in Radiance, which needs to handle >> >>>>>>> every >> >>>>>>> possible setting correctly. Also, I wonder in such a case if you >> have >> >>>>>>> tested every possible (legal) setting? >> >>>>>>> >> >>>>>>> >> >>>>>>> Cheers, >> >>>>>>> -Greg >> >>>>>> >> >>>>> >> >>>>> _______________________________________________ >> >>>>> Radiance-dev mailing list >> >>>>> Radiance-dev@radiance-online.org >> >>>>> http://www.radiance-online.org/mailman/listinfo/radiance-dev >> >>>>> >> >>>>> >> >>>> _______________________________________________ >> >>>> Radiance-dev mailing list >> >>>> Radiance-dev@radiance-online.org >> >>>> http://www.radiance-online.org/mailman/listinfo/radiance-dev >> >>>> >> >>>> >> >>>> _______________________________________________ >> >>>> Radiance-dev mailing list >> >>>> Radiance-dev@radiance-online.org >> >>>> http://www.radiance-online.org/mailman/listinfo/radiance-dev >> >>>> >> >>>> >> >>> >> >> >> >> _______________________________________________ >> >> Radiance-dev mailing list >> >> Radiance-dev@radiance-online.org >> >> http://www.radiance-online.org/mailman/listinfo/radiance-dev >> >> _______________________________________________ >> Radiance-dev mailing list >> Radiance-dev@radiance-online.org >> http://www.radiance-online.org/mailman/listinfo/radiance-dev >> > > _______________________________________________ > Radiance-dev mailing list > Radiance-dev@radiance-online.org > http://www.radiance-online.org/mailman/listinfo/radiance-dev > > > _______________________________________________ > Radiance-dev mailing list > Radiance-dev@radiance-online.org > http://www.radiance-online.org/mailman/listinfo/radiance-dev > >
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