A pseudo metamesh approach for 3D mesh morphing

The effect of morphing from one object to another has become a popular trend in computer graphics due to its applicability in various domains as architecture, gaming, cinema... In this paper, we propose a novel 3D mesh morphing algorithm for genus-0, closed manifold models. The technique firstly embeds the two 3D source and target objects into a common, spherical domain. For this we employ a modified version of the Gaussian curvature that returns a locally flattened version of the original models with a convex structure which can be simply projected onto the unit sphere. By overlapping the two embeddings and warping them in a suitable manner with the aid of RBF functions, we can establish a correspondence between the models. We also introduce a new method to create the supermesh model that share the topology of both input objects and which can easily be transformed from the source model into the target.