Daily Blender Tip 335: Rotating Box-mapped Textures

Jan van den Hemel writes:
Ah, box-mapping – the lazy/efficient modeler’s alternative to UV-unwrapping! It’s great, but what if you don’t like the direction of a texture? This can be an issue with wood for example, where you may want the wood texture to flow in a certain direction of a piece of furniture. Watch this quick tip to find out how to rotate the texture so that it doesn’t get distorted.

Thank you
This works, but what if you need to have the rotation applied for whatever reason? Is there another way we can achieve this rotation?