转换偏航，俯仰和滚动到x,y,z矢量在世界坐标。

I'm working on some simple 3d graphics in OpenGL (java LWGJL), and I'm trying to figure out how to convert yaw, pitch and roll to the x, y and z components of my movement Vector. I know how to do this with just pitch and yaw (as explained I'm working on some simple 3d graphics in OpenG