I heard OpenGL can do “The Guard Band Clipping”. My question to you is how Jmonkey does it? I am guessing that for the moving characters like enemy, maybe, they should show up fully within the computer’s monitor display, so that you do not have to perform clipping so much. For static objects, maybe the clipping would always be required?
If the object is outside the view frustum it will be culled. It just means it won’t be part of the render cycle, it will be skipped. For all intent nothing is affected by this action. It’s the equivalent of setting cull mode. I’m not certain it goes any deeper than that as far as the programmer is concerned, so all relevant controls etc will continue to work as normal.
Efficient scene hierarchy’s and management is important and plays a fair role when you come to a stage where you need to yield some frames/memory/etc.
As time goes by one generally learns through practice how these things work best but it’s not something you should worry about hugely in the beginning. Just know that if even a single pixel is in the view frustum it will ALL be rendered.
@jayfella that actually made me think of a question. I had never though about it before, but how does reflection work with an object that is not in the view? Lets say the user is looking at a mirror and sees a object that is behind them. How does the system know to render the object?