Am 09.08.2016 um 13:52 schrieb pkrskr:

> I see the semi-transparent ray and that it originates at the center of the
> virtual aperture. This precisely clarifies the method you detailed in elaborate
> steps earlier.
> 
> Can you elaborate on how the nominal pinhole camera location is computed as
> mentioned in step 2?
>>
>> (2) From the camera settings, POV-Ray computes the parameters for a
>> simple pinhole camera equivalent, with the pinhole at the nominal camera
>> location.

I'll re-iterate:

"As a matter of fact, POV-Ray /never/ actually "thinks" of the real
camera geometry in the first place, since the geometry is only specified
indirectly. [...]"

Both the virtual aperture center and the pinhole are placed at the
nominal camera location, as per the camera block.

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