Reconstructing a three-dimensional volume containing 1850 grains of IF steel at multiple loads by scanning with a planar beam. The units on the axes are micrometres. (a) The centre-of-mass position of the grain fraction illuminated in each layer of the undeformed sample shown as a sphere color coded according to orientation. From Oddershede, Schmidt et al. (2010). (b) The centre-of-mass positions of the 1343 grains that could be followed to 3% (open symbols) and the 113 grains that could be tracked all the way to 9% (filled symbols) tensile deformation. From Oddershede, Wright et al. (2010).