# VTK camera, how to get the right vector in world space

**URL:** https://discourse.vtk.org/t/vtk-camera-how-to-get-the-right-vector-in-world-space/7251
**Category:** Development
**Created:** [November 23, 2021, 4:28am UTC](https://discourse.vtk.org/t/vtk-camera-how-to-get-the-right-vector-in-world-space/7251 "2021-11-23T04:28:26Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![cebugdev](https://discourse.vtk.org/user_avatar/discourse.vtk.org/cebugdev/32/7803_2.png) [@cebugdev](https://discourse.vtk.org/u/cebugdev)
#### Post date: [November 23, 2021, 4:28am UTC](https://discourse.vtk.org/t/vtk-camera-how-to-get-the-right-vector-in-world-space/7251/1 "2021-11-23T04:28:27Z")

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As the title says, how can I get the orientation vectors particularly the right vector of the VTK camera, what matrix can I use to extract this right vector? from documentation, i can see that there are ModelTransform, ModelViewTransform and ViewTransform matrix, Im not entirely sure which to use to extract the world space aligned right vector.

I have the option of cross product the focal point position with up vector though, but i want to extract the vector from the matrix instead for correctness.