What kept me busy lately was this issue: How to do orthographic rendering on top of a Vuforia scene? And, how to project 3D object’s coordinates onto the viewplane? (like using gluProject, but we don’t have GLU on NDK…)

I opened a thread on Vuforia forum about this, couldn’t get a reply but solved it by myself. If you are interested on this topic, read it from there 😉 https://ar.qualcomm.at/arforums/showthread.php?t=2197

p.s. I submitted my paper to ISMAR! – as a poster submission though 🙂 Hope to get significant results to submit it as a paper.