[vtkusers] z- buffer to distances from camera

[Bill Lorensen]

The code in vtkWorldPointPicker::Pick shows how to convert from zbuffer
values to world values.



On Wed, May 29, 2013 at 9:59 AM, Umer Rafi <umer.rafi at rwth-aachen.de> wrote:

> Hi Everyone,
>
>   I am new to VTK and rendering. I have a rendered depth map from VTK
> (file attached). What I want is to get the distance of each pixel in this
> depth map from camera. Can any body tell me how to convert z-buffer values
> to actual distances from camera. I will really appreciate any help and a
> sample code snippet to get me started.
> Thanks in  advance.
>
> Regards
> Umer
>
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