A step-by-step handbook detailing the R.I.G.S. Prompting Framework for generating predictable and controllable results using the Nano Banana AI tool. The guide covers techniques for writing AI prompts tailored to 3D rendering, including viewport-to-photorealism workflows for architectural visualization, image-to-3D texturing, and seamless PBR material creation. It provides proven prompt structures for tasks like asset isolation, background cleanup, and lighting pre-visualization.