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I'm trying to find something for 2.8 but struggling.

I want to use the z height (depth on render layer?) to reduce the intensity of mist (composite layer) exponentially as height increases.

Currently, the mist render layer setup only affects intensity based on distance from camera.

The following tut shows how it could be done but it doesn't seem to have the same effect in 2.8.

shader setup mist pass

how to make a z-depth AND height pass?

Can anyone help with the node setup please?

Richard Owens
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    related: https://blender.stackexchange.com/questions/43600/low-lying-fog-bounding-object-rendering-as-solid/43648#43648 –  Jan 09 '20 at 14:15
  • Thanks - interesting approach. – Richard Owens Jan 09 '20 at 14:20
  • The linked answer on your post is easy to do in 2.8. The only difference is that layers have changed to collections and view layers. But the same principles apply. Read: https://blender.stackexchange.com/questions/96463/where-is-the-layers-panel-in-blender-2-8/96465#96465 –  Jan 09 '20 at 14:21
  • Ahhh - OK - it's a little confusing so let me work through it - thanks. – Richard Owens Jan 09 '20 at 14:45
  • you need a Normalize node before the viewer node! – Martin Jun 16 '22 at 18:43

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