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I am currently following blender guru's beginner tutorial following instructions every step of the way.

As soon as I added the droplet texture at the end of part 5, level 3: condensation, the glass on the cup started acting more like a double sided mirror. I went back and checked all my steps and can not fix the issue.

Kindly see images below of the renders before and after the droplets were added. Also an image of the node tree

Download blender file here

before adding water droplets

after adding droplets

node tree node tree

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  • $\begingroup$ What does your shader node tree look like? $\endgroup$
    – Timaroberts
    Jun 30, 2020 at 15:21
  • $\begingroup$ tree node added $\endgroup$
    – yassir
    Jun 30, 2020 at 15:30
  • $\begingroup$ Can you attach your blender file? $\endgroup$
    – Nxdhin
    Jun 30, 2020 at 15:50
  • $\begingroup$ blender file added $\endgroup$
    – yassir
    Jun 30, 2020 at 16:12

2 Answers 2

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I messed around with it for a while and there was definitely something weird going on with your object.

enter image description here

If you check the Face Orientation overlay you'll see the normals on your cup are inside out.

enter image description here

Select your cup, and switch to Edit Mode. Select everything with A, and then press Alt + N and select Recalculate Outside.

Everything should render properly afterwards.

enter image description here

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Connect the Alpha output (or even try Color Output alternatively) of your Image Texture and connect it to the Alpha input of the Principled BSDF node.

edited node

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  • $\begingroup$ connected the alpha of the image-texture to the principle BDSF and nothing changed. i am assuming it has to do with the original glass material or it has to do with the uv seems ive selected. $\endgroup$
    – yassir
    Jun 30, 2020 at 16:52

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