Hi
I think this is due to depth. Is there a way to solve this?
The same problem occurs when I enter the renderwindow module and change the depth setting from true to false.

Thank you!
Are we looking at volume rendering or a contour with transparency?
Ant idea @martinken ?
Guessing it is a transparent surface and would require depth peeling which we do not support yet
Thank you for your reply.
It represents the result of rendering the vtp file, not volume rendering. I use setOpacity () to give a little bit of transparency. Is that a problem that can not be solved yet?
Thank you! I got a new knowledge
Transparent surfaces can have rendering artifacts. See http://www.opengl-tutorial.org/intermediate-tutorials/tutorial-10-transparency/ for some background. There are solutions but they are not in vtk.js yet.
Thank you!!