[Paraview] Paraview SC17 Release OSPray = PV 5.5?

[Axtmann Gabriel]

Hi,
I was able to get some nice OSPray renderings using the actual Paraview 
version 5.5. Anyway If I want to load some material json files for 
rendering  I cannot find the option to set the material in the 
properties menue. What I am doing wrong here?

In short, I want to reproduce your SC17 example:

https://blog.kitware.com/kitware-talks-sc17-and-releases-for-vtk-paraview-and-cmake/


Thanks in advance

Gabriel