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I wanted to make a magnifying glass in blender. I added in a circle and gave it a little thickness. Gave it a casual glass shader too. But all I got was this:

enter image description here

enter image description here

There is no magnification at all. Does anyone know how to make a lens that actually magnifies ? I would also like to know how to control the power of the lens.

EDIT-

I understand that you need a curved surface for the bending of light but how do I make a curved lens? I'm newbie to blender sorry if this question sounds stupid.

Ryan
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    As in real life the flat glass doesn't have any magnificion, you have to make a curved surface. – FFeller Aug 15 '20 at 13:24
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    No changing the IOR doesn't do make any magnification – Ryan Aug 15 '20 at 13:33
  • also related https://blender.stackexchange.com/questions/56812/can-i-model-a-double-convex-lens?r=SearchResults&s=3|50.8195 https://blender.stackexchange.com/questions/60804/how-to-make-scopes-that-actually-magnify-using-materials-like-glass?r=SearchResults&s=5|37.4996 – batFINGER Aug 15 '20 at 13:44
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    Gist of the post I've linked: It's the IOR + a lens-shaped object... as in the real world of physics: https://en.wikipedia.org/wiki/Lens -> How to model a lens? – brockmann Aug 15 '20 at 14:26
  • Thanks for the effort , I searched the community but couldnt find the appropriate question which explained my question. That's why I decided to post this as a question. – Ryan Aug 15 '20 at 15:59

1 Answers1

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2 way to get a magnifying lens.

  1. Flat a sphere(with subdivision surface modifiers) it will act as a magnifying lens

  2. If you need to get lens from flat surface,

    • Add new material to the lens
    • Open shader editor
    • Add glass BSDF, and connect BSDF to surface in material output
    • Make IOR value to 1.5
    • Next add texture coordinate(input for normal)
    • At last connect reflection to normal to get lens material.

enter image description here

enter image description here

enter image description here

Ray Mairlot
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Alex Matthew
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  • Use the image that I send. It will easy for you. Good luck – Alex Matthew Aug 15 '20 at 15:09
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    Please don't use your phone to take photos from the screen, they are hard to see. Use screen captures. From within blender go to the top menu and select: Window > Save Screenshot. – susu Aug 15 '20 at 15:42
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    Hi. https://www.take-a-screenshot.org/ should help with taking clearer screenshots. The current ones are quite hard to see. Thanks. – Ray Mairlot Aug 15 '20 at 15:47
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    @Alex Matt that is not the proper way to make a lens. It might do the job but can look weird from different angles and wouldn't magnify the image pretty much. U wouldn't have the control over the magnification(power) as well. Also in this post you can edit by adding a screenshot . – Nxdhin Aug 15 '20 at 15:48
  • The proper way I would recommend is the way said here - https://blender.stackexchange.com/questions/56812/can-i-model-a-double-convex-lens – Nxdhin Aug 15 '20 at 15:52