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SlicerShader.py
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SlicerShader.py
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if True:
slicer.mrmlScene.Clear(0)
# loadScene('/Users/pieper/data/2018-06-28-Scene.mrb')
loadScene('/tmp/2018-06-28-Scene.mrb')
layoutManager = slicer.app.layoutManager()
renderWindow = layoutManager.threeDWidget(0).threeDView().renderWindow()
renderer = renderWindow.GetRenderers().GetItemAsObject(0)
actor = renderer.GetVolumes().GetItemAsObject(0)
shaderProperty = actor.GetShaderProperty()
mapper = actor.GetMapper()
def onFiducialMoved():
p=[0]*3
fn=slicer.util.getNode('vtkMRMLMarkupsFiducialNode1')
fn.GetNthFiducialPosition(0,p)
shaderProperty.GetFragmentCustomUniforms().SetUniform3f( "fiducial", p )
shaderProperty.Modified()
fn=slicer.util.getNode('vtkMRMLMarkupsFiducialNode1')
fn.AddObserver(fn.PointModifiedEvent, lambda caller,event: onFiducialMoved())
defaultFiducial=[0]*3
fragmentUniforms = shaderProperty.GetFragmentCustomUniforms()
fragmentUniforms.SetUniform3f( "fiducial", defaultFiducial )
croppingImplShaderCode = """
vec4 texCoordRAS = in_volumeMatrix[0] * in_textureDatasetMatrix[0] * vec4(g_dataPos, 1.);
g_skip = length(texCoordRAS.xyz - fiducial) < 50.;
"""
shaderProperty.AddShaderReplacement(
vtk.vtkShader.Fragment,
"//VTK::Cropping::Impl",
True,
croppingImplShaderCode,
False)
renderWindow.Render()