This might sound like an odd request, given that the Oculus SDK provides a way of generating an Orthographic Projection matrix at varying "distances" for 2D rendering.
I'm working with some legacy OpenGL code and want to keep the supporting Oculus changes minimal. I would like to draw the UI elements at their native "pixel" resolutions as far as pre-distortion (SDK) rendering is concerned. This is less of an issue with the DK2, as it appears that one can draw 2D images in the center of each eye and the lens distortion conveniently makes this (somewhat?) "close enough to normal". However, testing the same approach on the DK1 does not work.
In order to achieve this goal, I'll need to calculate a 2D x-axis offset to bump the UI elements for each eye.
How could I go about doing this in a way that would work "universally" for the DK1, DK2 and future HMDs? I'm hoping there Is a way to calculate this based on the Oculus SDK orthographic projection and the HMD's resolution.
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