Creating an optimized 3D-mesh for a stylized low-poly video game character

Abstract

Creating 3D models for video games requires artists to balance visual fidelity while considering performance implications. In the context of low-poly models, attention to the mesh structure is vital, as a visually clear silhouette, and a polycount is critical in areas with heavy deformations. The whole low-poly character creation process requires an understanding of a 3D model’s components, topology, and the effects of mesh deformation, all while maintaining a simplistic art style. The character creation process must be managed well for the asset to support the following phases: rigging, animations, and texturing.

This thesis aimed to explore the core concepts and methodologies that can be utilized when creating a low-poly 3D game character. It also provides a set of best practices for creating production-ready game characters that consider deformations, topology, and texturing.

To accompany the theoretical part of the thesis, an organic 3D model was created for a game prototype to demonstrate the process of making a video game character with deformations. The aim of the practical project was to emphasize the importance of considering a mesh’s deformations and topology and how they can impact the visual fidelity and quality of the model during production.

The 3D model and ambient occlusion map were created using Blender, rigged and animated with Mixamo’s auto-rigger, and finally imported to Unity for evaluation. The base color and normal map were created using Clip Studio Paint. The results indicate that the 3D model’s mesh structure affects the quality of deformations and textures.