Get Pure View Matrix in Vuforia

Question

I am using Vuforia SDK to build my AR app. By using trackableResult->getPose(), I can get a model view matrix of the target frame marker. But I also need pure view matrix to

Answer 1

To follow on from peedee's comment above, here is a picture I found extremely helpful, linked to from this web page.

Sorry I couldn't leave this as a comment, but they don't allow pictures in comments.

Note that different texts may use slightly different names for each space, but the overall idea should be the same!