Am 22.03.2016 um 02:55 schrieb Clodo:

> This .pov source: http://pastebin.com/aPbGSDud
> generate this image with the Google ODS formulas:
> http://www.clodo.it/host/images/f6febe4d2a5739483562719923fc528c31ac378b.png
> 
> With my Oculus Rift, the front and bottom view are perfect, but looking
> left and right the 3D seem reversed.

That's no surprise, because in the camera direction Z-axis formula you
have a surplus "-1" factor at the end that's /not/ in the original
Google formulae.

If this is intended to compensate for a left-handed vs. right-handed
coordinate system, you need to apply the same factor to the camera
location Z-axis formula.

> So, i rewritten the ODS with another logic:
...
> Now it's correct:

That depends on what spatial orientation you originally aimed for;
removing the surplus "-1" factor gives a different result, flipping the
handedness and looking in the -Z direction rather than the +Z direction.


My suggestion would be to go back to the original Google ODS formulas,
and use a factor "Handedness" rather than a constant "-1" (also, make
sure to use the factor on both Z-axis formulae), which can then be set
to either "-1" for left-handed or "1" for right-handed.

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