Mag filter is either bilinear or nearest. I am talking about other filters, like
The thing i am working on is not a minecraft like, more a pokemon like, so i would like to have this kind of magnification filter. I just don’t know if the magnification filter that exists in jme is backed by a GPU configuration (so hardware accelerated hard-coded etc.) or by a GPU “program” (so we can replace it with a “fancy” magnification filter).
The mag and min filters are built in to OpenGL. The control how the sampler behaves. If you want fancier filtering then you have to implement it yourself. I guess a lot of times this is done full screen depending on the filter.
I’m not sure about the licencing of algorithms, a google search may help, I’m pretty sure most of them fall under public domain, since they are kind of a concpt. I wouldn’t worry to much about it at this stage of your project, just pick the one that best suites your needs, if you find the code floating around the net with no licence attached, you can be fairly safe to assume it will be free to use.