Ponzu is an AI tool that uses machine learning to generate realistic textures and lighting effects for 3D assets. It has the unique capability to customize the textures in various styles such as photorealistic, ukiyo-e, toon, cyberpunk, steampunk, watercolor, line art, art nouveau, and impressionist. This tool can be used in a wide range of applications such as video game development, animation, architectural visualization, and virtual reality. By automating the process of texturing and lighting 3D assets, Ponzu can save time and enhance the overall visual quality of the creations.