I've finally manage to create a video breakdown for the Cactus Material I did in Substance Designer. In the video I go trough how the material with spines was created in Designer, how the meshes was setup in 3ds Max and finally how the materials and meshes was rendered in Marmoset Toolbag.
You can also download the video from my gumroad if you want to look at it whenever you want:
If you have any other questions about the material that I didnt covered in the video, please dont hesitate to contact me. Hope you will enjoy it! :)