Hello.
I noticed that it is possible to set gradient background effect in vtkc++
renderer->SetBackground(1.0, 1.0, 1.0);
renderer->SetBackground2(0.529, 0.8078, 0.92157);
renderer->SetGradientBackground(1);
but I did not find a similar method in vtkjs, can I implement gradient background setting in vtkjs, if so, please show me an example
thank you