[Bf-python] depth map with inverted z-buffer

[lynx.abraxas at freenet.de]

Hello!


Is  it  possible  to  create  a  depth  map  (as  this demonstrated e.g. here:
https://sites.google.com/site/paprmh/zbuf_float) with  an  inverted  z‐buffer?
I.e.  that  the resulting image of e.g. suzanne shows the z‐buffer of the back
of her head although the camera sees her from the front?
For an orthographic camera one could simply put the camera on the opposit side
of suzanne but when using perspective this is not possible any more.

Thanks for any help or hints
Lynx