Re: [Radiance-dev] Compiling Radiance for Windows

[Gregory J. Ward]

Perfect -- happy to add it to the distribution with Mark's blessing. Would this satisfy people's needs, or should we think about extensions? Cheers, -Greg From: Andy McNeil <mcneil.and...@gmail.com> Date: January 11, 2017 4:20:44 PM PST 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

3d360.cal
Description: Binary data

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