1. In a digital medium environment for designing and printing three-dimensional objects, a computer implemented method of generating digital images displaying defects in three-dimensional models to aid in identifying and correcting the defects, the computer implemented method comprising: generating a bounding sphere about a three-dimensional model; identifying a set of affected vertices of the three-dimensional model, wherein each vertex of the set of affected vertices is associated with one or more defects; generating a plurality of rays originating from each vertex of the set of affected vertices toward the bounding sphere; identifying a plurality of intersection points between the bounding sphere and the plurality of rays originating from each vertex of the set of affected vertices; generating viewpoints by clustering the plurality of intersection points between the plurality of rays and the bounding sphere; and generating a digital image of the three-dimensional model from each viewpoint, each digital image capturing one or more vertices of the set of affected vertices of the three-dimensional model.