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I've created a node tree that is able to separate a cube according to its planar symetries as in the image below Split cube

Now I would like to access geometry of one of the tetrahedron to perform some modifications that I will further mirror on all the other tetrahedron. Anyone could help me on how to access one tetrahedron ?

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    $\begingroup$ You are probably better off doing the reverse workflow of creating a stand-alone tetrahedron with the desired shape then instancing it to form the cube, if you wish to propagate changes. $\endgroup$
    – Duarte Farrajota Ramos ♦
    Commented Apr 26, 2022 at 14:02
  • $\begingroup$ This approach is definitely worth a try. I found this topic for the symmetries : blender.stackexchange.com/questions/251877/… $\endgroup$
    – Boidot
    Commented Apr 28, 2022 at 7:46

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You may use the Separate Geometry node in combination with the Mesh Island node, to access separate parts:

enter image description here

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  • $\begingroup$ Thanks. This is what I was looking for. I will conduct both methods (yours and the one proposed by @Duarte Farrajota Ramos) to see what works best in my case $\endgroup$
    – Boidot
    Commented Apr 28, 2022 at 7:47

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