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I'm trying to make a glass plane that zooms in whatever you see behind it, I tried this material from another question but it didn't work

enter image description here

I think what this is supposed to do is to scale all the light that comes through the Z Normals?

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    $\begingroup$ Related Also please provide link to other question / answer mentioned. $\endgroup$ – batFINGER Oct 14 '18 at 7:51
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    $\begingroup$ For that to work (the IOR 0.0 trick) you need to have the surface normal pointing the correct way - the opposite way to that you would expect. The IOR of zero will effectively direct the incoming rays directly along the Normal - so it can be used to bend incoming (parallel) rays as if the surface acts lens. See also blender.stackexchange.com/a/115868/29586 $\endgroup$ – Rich Sedman Oct 14 '18 at 22:40
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  1. Model a magnifying glass lens (biconvex)
  2. Set its color to white
  3. Use raytrace transparency
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