raytracing in vtk

Paulo_Carvalho · January 1, 2020, 11:27pm

Hi, Abhi,

Below is a manual implementation explained in high details in Python that was done in 2014 (quite old):

Note that this was prior to ray tracing officially supported by VTK in 2016.

Since then, googling led to more recent isolated efforts published in public source repositories:

Kitware/VTK/blob/master/Examples/Medical/Python/Medical4.py

#!/usr/bin/env python

#
# This example reads a volume dataset and displays it via volume rendering.
#

import vtk
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()

# Create the renderer, the render window, and the interactor. The renderer
# draws into the render window, the interactor enables mouse- and
# keyboard-based interaction with the scene.
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)

# The following reader is used to read a series of 2D slices (images)

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all the best,

Paulo