How to change orientation of skybox with paraview (like vtk renderer)

In Situ Support
1

I am testing skybox with python paraview.simple

I notice that orientation up of skybox is always Y-axis. (I expect that Z-axis)
So, when I load 3d model skybox looks like being ratated.

I found the solution with vtk renderer if I use vtkRenderer.

this->SkyboxActor->SetFloorPlane(0,0,1, 0.0);
this->SkyboxActor->SetFloorRight(-1,0,0);

(Turn environment map to z-up - Development - VTK)

This way, I can see skybox’s up-orientation is Z-axis

However, I don’t know how to do this with paraview python module

with paraview trace tool, I can show skybox with below code.

view = simple.CreateView('RenderVIew')
view.UseColorPalleteForBackground = 0
view.BackgroundColorMode = 'skybox'
view.UseEnvironmentLighting = 1

back_texture = simple.CreateTexture('.....hdr')
view.BackgroundTexture = back_texture

Now, I don’t know how to code to change orientation of skybox in vtkPVRenderView.

Please help me…
Thanks in advance

2

I’m afraid this is not exposed in ParaView, it should be pretty simple to add though.

@Lucas_Givord

3

I ran into the same issue. In the mean time, you can instead rotate the data you want to display using the Transforming section of the property pane:

image
image1203×875 74.1 KB

# trace defaults for the display properties.
partitionedDataSetCollectionSource1Display.Representation = 'Surface'
partitionedDataSetCollectionSource1Display.ColorArrayName = ['POINTS', 'Scalars']
partitionedDataSetCollectionSource1Display.LookupTable = scalarsLUT
partitionedDataSetCollectionSource1Display.SelectTCoordArray = 'None'
partitionedDataSetCollectionSource1Display.SelectNormalArray = 'Normals'
partitionedDataSetCollectionSource1Display.SelectTangentArray = 'None'
partitionedDataSetCollectionSource1Display.Orientation = [0.0, 90.0, 0.0]
4

Thank you Alex.

@Alexandre_Minot

I tried this already.
It makes remaning default up vector of view as Y-Axis and we can rotate 3d structure.

However, same situation happens again when I make child pipeline from structure like as creating filter.

So, this could not be the solution for me :frowning:

Anyway, thank you!

5

I tried also something like hack? trick?

I retrieve actor(vtkSkybox?) from view like below and then change property of FloorPlane and FloorRight.
Script seems working but skybox rendered wiered. (LOL)

I expected lucky magic… haha

renderer = view.GetRenderer()
actors = renderer.GetActors()
actors.InitTraversal()

while True:
    actor = actors.GetNextItemAsObject()

    if not actor:
        break

    if actor.__class__.__name__ == 'vtkOpenGLSkybox':
        actor.SetFloorPlane(0, 0, 1, 0.0)
        actor.SetFloorRight(-1, 0, 0)
        break
    print(actor.__class__.__name__)
6

In a similar vein, if you want to keep the transformation with subsequent filters, you can try applying a Transform filter on your data directly (here only the representation of current source is rotated, hence it does not apply on the rest of your pipeline)

7

Thank you for your reply.

I am afraid it’s not hevy when I load really huge models.
I usually load very heavy structures.

I have to test it is affordable

Thank you