I recently saw this video on youtube by Midge Sinnaeve. I think there was a lot to learn from there so just after finishing it I opened Blender and I tried to recreate what he was doing on min 54:30.

Thing is, my glass shader doesnt look like the one in the video at all. Before I add the volume shader everything is ok, I can see the reflexions on the surface, but, when I create a volume Suzane under the glass I can't see anything new. If I take the glass off I can see the volume monkey so I don't think the problem has anything to do with this one.

I attach photos so you can see what I mean.

This is what it should look like. Reference Suzane

This is what mine is looking like.enter image description here

I've already done it a couple times so the node configuration should be alright

Solution: Make sure you set the max bounces for volumes (inside Render Tab > Light Paths) to more than 0.

  • 1
    $\begingroup$ I guess he also plugged a volume shader into the volume output to get the glass on top. $\endgroup$
    – brockmann
    Oct 5, 2020 at 16:41
  • $\begingroup$ read: blender.stackexchange.com/questions/193771/… $\endgroup$
    – susu
    Oct 5, 2020 at 18:03
  • $\begingroup$ You need to add more light too $\endgroup$ Oct 5, 2020 at 20:36
  • 2
    $\begingroup$ Please don't write solved as part of the title. Don't write the solution as part of the question. Use the answers section to write your own answer and mark it as accepted. Please read the help center section to understand how this site works. $\endgroup$
    – no-can-do
    Oct 6, 2020 at 15:27

1 Answer 1


There are two suzannes in the scene;

One has a simple glass shader with a solidify modifier and is the "outer suzanne" as I'll call it.

The second is inside the first and has a volumetric material (the tree I used is below). Midge added a displace modifier to this one to shrink it .

Suzanne 1 (Outer) should look as so with the solidify:

enter image description here

Modifier stack will be as follows:

enter image description here

Suzanne 2 (Inner) should be as shown below, just slightly smaller than the outer suzanne to avoid any intersections that will cause shading issues will the glass material:

enter image description here

modifiers for inner suzanne are as follows:

enter image description here

This is the volumetric material I used:

enter image description here

Click to enlarge

The result is about as below, but any volumetric material could be used:

enter image description here

  • $\begingroup$ The problem was actually that I had set the max bounces for volumes to 0... However thanks for your answer!! $\endgroup$
    – jirm
    Oct 6, 2020 at 15:13
  • 1
    $\begingroup$ @IgnacioRM the solution I added was from Midges stream, however feel free to add your own answer below rather than editing your question with your answer. It is always ok to answer your own question :) $\endgroup$
    – Timaroberts
    Oct 6, 2020 at 15:22

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