Polyline material clamptoground, tilt, only parts visible dependent WGS84 or Cesium World Terrain


I’m a newbie in shading and material. I would like to tilt a svg-image as material dependent on the angle to the camera, but I would like to use clamptoground.

in the sandcastle only parts of the pattern are displayed if I use clamptoground.

Not using clamptoGround I see the full pattern and it is tilt in some part.


Is it possible to tilt the pattern taking the angle to the camera into account ? Has anyone an idea ?


There is also the behaviour that the pattern is only fully displayed, if WGS84-Ellipsoid is selected. Selecting Cesium World terrain , the pattern isn’t displayed correct