# vtk, SimpleITK and blender

**URL:** https://discourse.vtk.org/t/vtk-simpleitk-and-blender/4093
**Category:** Support
**Created:** [August 28, 2020, 2:35pm UTC](https://discourse.vtk.org/t/vtk-simpleitk-and-blender/4093 "2020-08-28T14:35:24Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Issam\_Dak](https://discourse.vtk.org/user_avatar/discourse.vtk.org/issam_dak/32/2250_2.png) [@Issam\_Dak](https://discourse.vtk.org/u/Issam_Dak)
#### Post date: [August 28, 2020, 2:35pm UTC](https://discourse.vtk.org/t/vtk-simpleitk-and-blender/4093/1 "2020-08-28T14:35:24Z")

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Hi, i m new to vtk and SimpleITK and i need some help.  
I m trying to make a blender addon for reading NRRD file exported from 3Dslicer or dicom sequence from user directory  
The volume will be read using vtk NRRD reader or itkGDCM.  
I would like to use vtk resample class to extract 3 Orthogonal slices according to the parameters of an empty object in blender (holder/parent) of 3 orthogonal planes  
Expected result :  
When the blender empty object is rotated or translated a 4x4 matrix is calculated (empty new location and rotation ) and recalculate the resampled volume --\> output the 3 flat numpy arrays --\> push to blender 3 planes respective textures  
My questions :  
1\_ I dont know how it is done in 3DSlicer is this approach correct.  
2\_ if it is , how could i proceed to not call the entire vtk pipeline (from reader to resampling fuction at least) for every move.  
I ll be so grathfull for some help Thank you