I am new to the community and have only recently started reading up on vtk and need support on the possibilities of this great library.
Namely, I want to develop my own ray tracer in Python using the
vtk library. As I understood it according to the following post, the own implementation of a ray tracer is relatively easy possible without creating new classes, provided that the data (assuming medical CBCT data) has already been converted to a surface model with e.g.
vtkMarchingCubes From Ray Casting to Ray Tracing with Python and VTK | PyScience (wordpress.com) One advantage of this approach is yes, that one can very easily perform cut tests with the
OBBTree class. However, a disadvantage is that if you want to represent different tissue types, such as bone and soft tissue with different material properties, you should first segment each tissue type of a dataset and define its own material property. (As far as I understood )
Furthermore, both researches didn’t show me that this possibility to use existing vtk classes can also be used for the implementation of an own ray-tracing volume rendering algorithm. For this I only found that you have to create your own derivation of the class
vtkVolumeMappers, in which you can then integrate the functions. Is this also possible in Python? And to what extent can I merge the functions of other libraries, like
pyoptix with the
vtk functionalities to achieve my goals? Or in the same way with paraview?
Thank you very much in advance and I appreciate any answer!
Best regards David