'Fill' the meshes with solid volumetric


I would like to see cross sections of my model, and wonder if a volumetric setup could produce a solid look (no transparency, absorption or glow; just a full diffuse color) and be applied to a large number of meshes.

Ideally I should be able to see this kind of thing from the full body:

The boolean require too much calculation to stay reactive with the complexity of the model:

Following this tutorial (https://www.youtube.com/watch?v=PBAB3ciBQqk), I see that a volume can adapt to a complex mesh, although I’d rather not add an empty and turn the inner part of the mesh directly fully opaque.

I guess that if nobody shares information about it, it is because it is not an option for the moment; but I need to ask the question, to be sure.

I hope I have understood correctly.
You can try a function in BlenderBIM called Section Planes.

It is exactly what I was looking for.
Thank you very much!

I installed the add-on and see that it implies a specific type of ‘Industry Foundation Classes’ (.ifc) file.

Do you think that it would be possible to use only the part with the cross-section planes within a .blend file?

I think that it is in this part of the script:
BIM-Section_plane.py (11.1 KB)

I see that somebody made a paid addon for it (Dynamic Slice and Cap Add-On 1.1), but it can not be used for the atlas that is entirely free.

Not for the Section Planes.

I don’t know, but you can ask in the forum

3D Viewport must be in Material or Rendered Mode.

1 Like


The Blender BIM Add-on is a wonderfuls add-on.
But I have an issue adding a section plane.

When I add a section plane, the model dissapear… I made a small demo video (https://youtu.be/sm3xz3TL2ow).
The only thing I do is clicking on the button “Add temporary section cutaway”
Is there something I’m doing wrong?

Just in case:
We are now about to release an open source app of the atlas of anatomy and we would like to reproduce this effect in Unity.

We found the ‘double sided’ add-on but both the developer and I are noobs in shader (he achieved to create a decent look though).

Do you know how to replace this Blender node (Geometry>Backfacing) in Unity?

Unfortunately, I have no idea about Unity, but maybe this link will help you.

I think this is a relatively new project.
You can ask the developer to include Geometry>Backfacing in his Addon,
or maybe he knows how it works without an Addon.