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 <
[email protected]> 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" <[email protected]> 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
> >
> >
> >From:
> >Victor LRG <[email protected]>
> >Date:
> >January 8, 2017 3:49:00 AM PST
> >
> >
> >
> >
> >
> >Nathaniel,
> >
> >
> >So far my implementation the equirectangular view seems to work. The only
> >part that I have not touched for full support is util/rpiece.c because I
> >don't use it very often. You can also create an equirectangular view
> >through other routes, but I find having
> > it inside the code faster and more convenient.
> >
> >
> >I'm happy to share it. Personally, I think it would be useful to
> >incorporate it into the main distribution, but that's a question for Greg.
> >
> >
> >Cheers,
> >
> >
> >Victor Lopez-Rioboo Gil
> >
> >
> >
> >
> >On 7 January 2017 at 18:42, Nathaniel Jones
> ><[email protected]> wrote:
> >
> >Hi Victor,
> >
> >
> >I'm considering implementing equirectangular view for some of my own
> >work, and before I start, I was wondering what the state of your
> >implementation is and whether you might share it. Also, is this something
> >that might work its way into the main Radiance
> > distribution?
> >
> >
> >Happy new year,
> >
> >
> >Nathaniel
> >
> >
> >On Thu, Dec 22, 2016 at 10:09 AM, Victor LRG
> ><[email protected]> wrote:
> >
> >Rob,
> >
> >
> >I have tried the last official release, so just 5.0. I'll try 5.0.a.12 to
> >see what happens. I have used the NREL Windows installers before and I
> >had no issues.
> >
> >
> >The reason I wanted to compile Radiance myself is that I was playing
> >around with the source code and I wanted to try the changes. So far I
> >have incorporated an equirectangular view to rpict (see Radiance General
> >October 2016 Creating new view types for
> > Radiance) and an additional option for pextrem. They do seem to work
> >fine in Linux, but unfortunately I not always have access to a Linux
> >machine. Therefore, it would be great to be able to compile it for
> >Windows.
> >
> >
> >I'll have a look at the link to the commit. For now a was using the
> >CMakeLists.txt that came with the source code package with the following
> >modifications:
> >
> >
> >cmake_policy(SET CMP0045 OLD)
> >
> >SET(CMAKE_PREFIX_PATH “C:/Qt/5.7/msvc2015_64/lib/cmake/Qt5Widgets”)
> >SET(TIFF_INCLUDE_DIR “C:/Program Files (x86)/GnuWin32/include”)
> >
> >
> >
> >I'll try using the CMake/MSVC/libtiff/Qt versions you suggest to see if
> >that makes a difference.
> >
> >
> >Many thanks,
> >
> >
> >Victor
> >
> >
> >
> >
> >
> >
> >
> >
> >On 22 December 2016 at 14:39, Guglielmetti, Robert
> ><[email protected]> wrote:
> >
> >What¹s the vintage of the source code? There were a couple of minor
> >patches to the 5.0 official release (Mid-September), and the last tag that
> >builds for Windows for me is the 'NREL 5.0.a.12¹ tag:
> >
> >https://github.com/NREL/Radiance/releases/tag/5.0.a.12
> >
> >
> >You could try the Windows installers we have, which seem to be working:
> >
> >https://github.com/NREL/Radiance/releases/download/5.0.a.6/radiance-5.0.a
> .
> >6
> >-win64.exe
> ><https://github.com/NREL/Radiance/releases/download/5.
> 0.a.6/radiance-5.0.a
> >.6-win64.exe>
> >https://github.com/NREL/Radiance/releases/download/5.0.a.6/radiance-5.0.a
> .
> >6
> >-win32.exe
> ><https://github.com/NREL/Radiance/releases/download/5.
> 0.a.6/radiance-5.0.a
> >.6-win32.exe>
> >
> >I also Œget¹ wanting to roll your own, though. Again you¹d need to make
> >sure your source aligns with this commit, or earlier:
> >https://github.com/NREL/Radiance/commit/0c842736bf2b0908ba0ea42963ea8f
> 4680
> >c
> >d1fc5
> ><https://github.com/NREL/Radiance/commit/0c842736bf2b0908ba0ea42963ea8f
> 468
> >0cd1fc5>
> >
> >And for the record, that NREL Windows build used Cmake 3.3.2, MSVC 12
> >2013, a libtiff I rolled myself with 4.0.4-beta, and Qt5.3.
> >
> >The NREL packages aren¹t bulletproof, I¹m finding, but xform and oconv
> >seem to work fine. It¹d be potentially mutually beneficial for you to try
> >the NREL package on your input and see what happens. Or, send me your test
> >input and we can go from there.
> >
> >- Rob
> >
> >
> >On 12/22/16, 5:15 AM, "Victor LRG" <[email protected]> wrote:
> >
> >>Dear all,
> >>
> >>I amtrying to compile Radiance 5R0 for Windows using Cmake 3.7.1 x86 and
> >>MVSC 2015 v14 with libtiff 3.8.2 and qt-x86-2.0.4. The compilation
> >>finished with no errors (although some 1700 warnings), but when I am
> >>trying a simple test
> >> I get the following error with ovonv: fatal - (!xform
> >>objects/cage_sphere2.rad): bad arguments for polygon "311s1m134f". This
> >>object has the following description, which seems right to me:
> >>
> >>
> >>cage_sphere polygon 311s1m134f
> >>0
> >>0
> >>9 -0.833925170898 0.506038208008 0.096073600769
> >>   -0.819481933594 0.473128112793 0.0903565139771
> >>   -0.853187255859 0.492587890625 0.0980178833008
> >>
> >>
> >>
> >>In VS I can see the following warnings regarding oconv and xform:
> >>
> >>
> >>C4273 'erf': inconsistent dll linkage
> >>C4273 'erfc': inconsistent dll linkage
> >>
> >>
> >>
> >>They both refer to rtmath.h file, which I guess they should refer to
> >>erf.c as well? Actually, this warning also appears for most projects.
> >>I've compiled and used the same package in linux before with no problem.
> >>
> >>
> >>Any ideas?
> >>
> >>
> >>Thanks
> >>
> >>
> >>Victor Lopez-Rioboo Gil
> >>
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
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