{
	A texture function for wrinkled materials.

	11/23/93	Greg Ward

	A1	- average rise of wrinkles
	A2	- average run of wrinkles
	A3	- average spacing of wrinkles
}

diri = noise3(Px/A2/3,Py/A2/3,Pz/A2/3);

mx = Sqrt(-diri);
my = Sqrt(1-abs(diri));
mz = Sqrt(diri);

xwrink = Rdot*A1/A3*mx*fnoise3(Px/A3,Py/A2,Pz/A2);
ywrink = Rdot*A1/A3*my*fnoise3(Px/A2,Py/A3,Pz/A2);
zwrink = Rdot*A1/A3*mz*fnoise3(Py/A2,Py/A2,Pz/A3);