I'm looking for a way to procedurally create a realistically looking texture overlay simulating the object being shrink wrapped.
It is only used to be added to single images, so it does not need to behave correctly in an animation with changes of position or angle of the object, camera or light source(s).
I already tried by implementing a grayscale plasma effect. It looks nice but not real:
Below you can find some examples of what I am hoping to achieve.
Do you have any suggestions on how something like this could be generated? I'm looking to produce thousands of unique textures, so there should be some variation/randomness involved.