I decided to take a crack at this since nobody responded yet. I attempted to use technique 3 in my shader here. My math could be better, but this is the basis of how it works and it works pretty well. The issue with mine is you can see the seams sometimes appear in parts of the rotated texture but this gets fixed if you use seamless textures in combo with the anti-tiling.
Unfortunately this type of request is outside of the scope of our support, we might reach out with tips or suggestions at times for very specific questions, but it won't always be possible to assist in matters that do not involve potential issues or feedback.