Z pass not showing anything not even in z buffer

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1

Hello all,

Im trying to render a particle animation with bloom and transparency, I did bake the animation into the cache. Im planning on adding depth of field later on so i wanted to add a Z pass to my render. The problem is that the z pass doesnt seem to be picking up anything at all. I have tried adding a map range node, a normalizer or looking at the z buffer but nothing shows. Does anyone have any idea why this might be happening?

This is the render as it is
https://drive.google.com/file/d/1YnjjQO27TODzO70WbXbX4lrHTP1sqfoq/view?usp=sharing

this are my nodes
https://drive.google.com/file/d/1pUztCgK_7jNFAlIzvj-1CQWbYX7YlezL/view?usp=sharing

Thanks for the help

2

Try math node.