I want to model the corners of a piece of paper that have curled up, inwards towards the center of the square sheet. I tried a few different things but nothing looks right. I made a piece of paper out of two curves lofted together. When I try to make the curled effect on the corners I am having a ton of trouble. It appears to be because the lines of the curves only run perpedicular. I think I need some type of x type isoparms running diagonally but don't know how to set it up.
Any help would be much appreciated.