Bounding Box at an angle

[thebest108]

Would there be a way to make a solid bounding box rotated at an angle. It can't be impossible zepplen mod did it.

[MineMaarten]

I think they did some trickery to approximate the rotated BB by combining multiple AABB's. As Minecraft uses Axis Aligned Bounding Boxes, the name says it all, they will stick to the axis.