Very new to JME3
Is there an orthogonal camera available?
I see in SimpleApplication, there is a orthogonal viewport for the GUI, but can an othogonal view be set up to render objects too?
In DirectX (my background), I would just implement this in a simple vertex shader. Is this an option?
yes just call cam.setParallelProjection(true);
An example is given in TestParallelProjection: