An Application for 3D Grain Generation Based on t-FFD

Abstract

This study aims to generate grain forms on 3D models by applying Free Form Deformation (t-FFD). As the fully automated placement of grain patterns on curved surfaces tends to generate distorted grain patterns, we propose a method of semi-automatically placing grain patterns, based on simple inputs from the user, as well as of controlling the heights of grain patterns in real sizes in reference to the model sizes. The proposed method has proved to successful in placing the desired grain forms.