Keep in mind though, that this approach does not work with reflected rays!

"Roman Reiner" <lim### [at] gmxde> wrote:
> Try something like
>
> #declare depthMapTexture = texture {
>   pigment {
>     spherical
>     color_map {
>       [0.0 rgb 0]
>       [DISTANCE_NEAR/DISTANCE_FAR rgb 0]
>       [1.0 rgb 1]
>     }
>     scale DISTANCE_FAR
>     translate CAMERA_POSITION
>   }
>   finish {
>     ambient 1
>   }
> }
>
> union {
>   // the whole scene
>   texture { depthMapTexture }
> }
>
> where DISTANCE_NEAR and DISTANCE_FAR specify the black and white points of the
> depth map (minimum and maximum distance) and CAMERA_POSITION is, obviously, the
> camera position.
>
> Regards Roman
>
>
>
> "handos" <han### [at] gmailcom> wrote:
> > Hi everyone,
> >
> > I have been using POVRay and Megapov for rendering images and obtaining depth
> > maps using Megapov's post-processing tool available here at
> > http://megapov.inetart.net/manual-1.2.1/global_settings.html#post_processing.
> > I'm rendering the publicly available office room scene from Jaime's website
> > http://www.ignorancia.org/en/index.php?page=The_office.
> >
> > However, my main problem is that it takes almost 2.5 hours to render the scene
> > using POVRay 3.6. I'm having to use MegaPOV for only depth and MegaPOV is not
> > available linked with POVRay 3.7 which is parallelisable (where my scene is
> > rendered in couple of minutes). I would like to use the benefits of POVRay 3.7
> > but I don't know how difficult is it to obtain depth map using POVRay 3.7. If
> > anyone has ever tried obtaining depth maps using POVRay 3.7 for such complicated
> > scenes like this, I'd be very grateful to have your feedback and suggestions on
> > that!
> >
> > Kind Regards,
> > Ankur Handa

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