I am trying to simulate random scratches on glass in Cycles. My approach was to use a procedural noise texture scaled in one direction, then rotated randomly. Then layer a few more noise textures with different rotations. These combined would simulate scratches (at least I hope).
I am using Vector Mapping to try to rotate the texture on the object, but can’t seem to get an angled rotation…scratches only seem to run in X/Y axis.
Attached is node setup and a render example…shows the stretched noise texture but can’t get to rotate at an angle. Any ideas?