[vtkusers] Shadow in vtkActor

[Paulo Henrique Junqueira Amorim]

Hi,

With the code below, i'm projecting the shadow from cone in the cube. But
does not work, what am I doing wrong?

Regards,
Paulo



The code:


import vtk

ren = vtk.vtkRenderer()
ren.SetBackground(0.1, 0.1, 0.4)

cube = vtk.vtkCubeSource()
cube.SetXLength(100)
cube.SetYLength(100)
cube.SetZLength(100)

cube_mapper = vtk.vtkPolyDataMapper()
cube_mapper.SetInput(cube.GetOutput())

cube_actor = vtk.vtkActor()
cube_actor.SetMapper(cube_mapper)

prop = cube_actor.GetProperty()
prop.ShadingOn()

ren.AddActor(cube_actor)
ren.ResetCamera()

cam = ren.GetActiveCamera()
cam.GetPosition()
cam.GetFocalPoint()


cilynder = vtk.vtkCylinderSource()
cilynder.SetRadius(5)
cilynder.SetCenter(0, 0, 0)
cilynder.SetHeight(600)

cilynder_mapper = vtk.vtkPolyDataMapper()
cilynder_mapper.SetInput(cilynder.GetOutput())

cilynder_actor = vtk.vtkActor()
cilynder_actor.SetMapper(cilynder_mapper)
cilynder_actor.SetPosition(cube_actor.GetPosition()[0],
cube_actor.GetPosition()[1], cube_actor.GetPosition()[2] + 200)
cilynder_actor.GetProperty().SetColor(0, 0, 1)

ren.AddActor(cilynder_actor)


ren_win = vtk.vtkRenderWindow()
ren_win.AddRenderer(ren)
ren_win.SetSize(800, 600)

interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(ren_win)
interactor.Initialize()
interactor.Render()

light = ren.GetLights().GetItemAsObject(0)
light.SetLightTypeToSceneLight()
light.SetConeAngle(180)
light.SetPosition(cilynder_actor.GetPosition()[0],
cilynder_actor.GetPosition()[1], cilynder_actor.GetPosition()[2] + 200)
ren.AddLight(light)
interactor.Render()

interactor.Start()
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