Sketchar: Supporting Character Design and Illustration Prototyping Using Generative AI

Sketchar functions as a generative AI-driven prototyping platform designed to resolve persistent communication barriers between game designers and illustrators. By integrating large language models and text-to-image synthesis, the system enables non-artists to translate abstract conceptual intent into concrete visual and narrative character profiles. This human-in-the-loop architecture facilitates iterative refinement, allowing designers to generate, edit, and organize character assets that serve as professional-grade reference material for downstream artistic production.

The research, conducted primarily within the context of the game industry in mainland China, utilizes a mixed-methods approach to evaluate the tool’s efficacy. Quantitative data, measured via the Creativity Support Index, indicates that the tool significantly enhances expressiveness and exploration for users lacking formal artistic training. While professional artists expressed reservations regarding the fidelity of AI-generated imagery, expert evaluators confirmed that the output remains highly viable for early-stage design documentation and cross-disciplinary collaboration. The system effectively mitigates the friction caused by divergent professional vocabularies and the difficulty of visualizing complex character concepts.

Despite these advancements, the integration of generative AI into professional workflows introduces critical challenges, including concerns over copyright, creative agency, and the potential for cultural bias within generated content. Future iterations of the technology must prioritize the mitigation of these biases through cultural counseling and improved image quality to better align with professional artistic standards. While the current study validates the tool’s utility in streamlining the conceptualization phase, further research is required to assess its performance in real-time collaborative environments and its broader applicability across diverse global markets.