Morphing of point-sampled geometry is one important research area in the field of computer animations. Based on spherical parameterization

we put forward a robust morphing of point-sampled geometry. Source and target models represented by point-sampled geometry are first parameterized onto a sphere

respectively. After aligning the corresponding features of two models on their spheres

two spheres are projected onto a common rectangle-parameter domain and the correspondence between sample points on the two models is built using this rectangle domain. In order to preserve the geometric details of point set surfaces

the absolute geometry of the in-between models is computed by means of Laplacian operator and is dynamically up-sampled using a moving least square method so as to eliminate the cracks. Experiment results demonstrate that our algorithm can preserve the geometric details very well and produce a smooth transition sequence.