Orthographic projection should be relative to the viewport.

[modality]

The orthographic projection matrix had hardcoded left and bottom values of 0, meaning that when a camera was rotated, it would appear as if the entire scene had been rotated around the bottom left corner of the screen, regardless of where the camera was positioned.

IMHO, the view of your scene should be roughly similar when toggling between these two projections. A different projection should not require any fiddly translation by a developer to compensate. It should be handled internally by ofCamera.

Here are some screenshots to demonstrate what I'm talking about.

Positions of primitives in space:
Red cube is at (0, 0, 0)
Green sphere is at (0, 0, -128)
Blue cube is at (128, 0, 0)
Cyan box is at (128, 64, 0)

Front Current

Front Fixed

Left Current

Left Fixed

[SoylentGraham]

+1 for relative client space coordinates (this is how I expected it to be setup the first time I used the ortho projection)

I made a similar change locally where I passed in a 2nd Rect to specify the Ortho Space dimensions (in my case [0,0]..[1,1]) which defaulted to viewPort, IIRC (will check) I had to change 2 lines in v7, but maybe not v8....

Anyway, that worked splendidly for me

[SoylentGraham]

Oh except for font-rendering, which I always had to put some explicit push/scale/pop around

[yty]

+1 Hope to merge..

[ofTheo]

This looks good to merge to me.
@arturoc @openframeworks/2d-3d - any objections?

[arturoc]

nope, looks great to me