Camera Space ? or Image Space ? (GLSL)

Hi!
Someone can explain me Why im not get XYZ positions relative to the camera ? instead of that I get only the xy coordinates in image space... (i think) (why there is no blue values there (how far the object is from the camera) ? What im missing with the idea of world to camera transformation ?

added helpful toe ,if anyone want to to use it to comment on my question.
Barak.

Update:
it does work :slight_smile:
32bit ( contain minus values,showing them as black )
NewProject.13.toe (9.24 KB)