Irrlicht Engine

Try disabling the alpha channel.

I see this is licensed under the LGPL. Can this be used in closed source projects? Would I have to recompile it as an external DLL to do so?

Irrlicht has 2 software renderers: one is fast but very buggy (on my computer at least), and the other works well but is too slow. The slower one uses a kind of bilinear/trilinear filtering on the textures, and I guess it could run much faster with this filtering turned off. Where could I disable it...