Interactive 3D Character Modeling from 2D Orthogonal Drawings with Annotations

TL;DR

This paper introduces an interactive system for 3D character modeling from 2D orthogonal drawings, allowing users to iteratively refine models through annotations and shape optimization, improving efficiency and quality.

Contribution

The method combines orthographic drawings with annotation-based shape editing to enable intuitive and precise 3D character creation from 2D inputs.

Findings

Generated models are comparable or superior to state-of-the-art methods.

The system allows iterative refinement through simple annotations.

User studies show improved efficiency in character modeling.

Abstract

We propose an interactive 3D character modeling approach from orthographic drawings (e.g., front and side views) based on 2D-space annotations. First, the system builds partial correspondences between the input drawings and generates a base mesh with sweeping splines according to edge information in 2D images. Next, users annotates the desired parts on the input drawings (e.g., the eyes and mouth) by using two type of strokes, called addition and erosion, and the system re-optimizes the shape of the base mesh. By repeating the 2D-space operations (i.e., revising and modifying the annotations), users can design a desired character model. To validate the efficiency and quality of our system, we verified the generated results with state-of-the-art methods.