On 03/08/2016 04:56 PM, Clodo wrote:
> The big issue it's the same issue that also have the "Bill P. mesh camera" and
> "Paul Bourke povray 3.6 patch":
> near the polar in Y axis, a spiral effect.
>
> http://www.clodo.it/host/images/42c1548d0620db0c5e54324e6ad6cd23ee86f8fb.png
>
> Tested with two of more popular image/video player for Oculus Headset: Virtual
> Desktop & MaxVR . No differences.
>
On your modification of source code for this camera - well done!

Interesting to me too is that the green cylinder behind the Y+ character 
at the pole in your image is 10m away - much more than the 3.5m the 
Google ODS PDF recommends at the poles - and no distortion is apparent 
for that shape to my eyes.

Supposing the distortion is in fact out at those distances too, but 
given image resolution & typical environments (ground/sky) at larger 
distances we often enough won't see it.

The ODS "rule" of >=3.5m open space at the poles is certainly 
inconvenient given typical human dimensions and our inside environments. 
Light fixture on a ceiling, a patterned throw rug on the floor or 
walking through a doorway as problematic examples. :-)

Bill P.

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