The VolumeController of vtk.js looks like this:
In the lower box, a sort of grey sort of mountain landshape is displayed in the background. I noticed that this is different for each data. Does someone know what the function of this is and what this means?
I also have another question. On the vtk.js volumeviewer page is mentioned that a Gaussian is created for the opacity transfer function when clicking on a specific location in the lower box. Why is specifically a gaussian created? What is the purpose of this?
Thanks a lot in advance!