Time-variant Volumetric Colors for Metamorphosis

Abstract

We propose to treat any changes in colors and textures in shape metamorphosis between two objects as time- dependent transformations of the volumetric distribution of materials. The main idea is to represent geometry of both objects with scalar fields with distance properties, to leave a time gap in where the geometric metamorphosis happens, and to use the scalar fields to apply shape-driven interpolation to volumetric material attributes within this time gap. The proposed solution is analytical, does not require heavy numerical computations essential to fluid simulations, and can be implemented in real-time applications.