# Normal and depth map generation prompts for Nano Banana Pro

- Model: [Nano Banana Pro](/models/nano-banana-2-1.md)
- Creator: [Library Game Art (@library.game.art)](/@library.game.art.md)
- Label: AI-generated
- Use cases: Nano Banana Pro
- AI keywords: portrait, painting
- Copies: 0
- Saves: 0
- Published: 2026-10-31
- Cover image: https://cdn.promptclay.com/media/v/01M69T8MZGK0AF1A44ZH3CWJ6J/w1200.webp
- Page: https://promptclay.com/prompts/normal-and-depth-map-generation-prompts-for-nano-banana-pro-gyy9jj

## Prompt

```text
Generate a surface normal map from the input artwork image.

Output one RGB image where each pixel encodes the surface normal direction in standard tangent-space format:
• R = X direction
• G = Y direction
• B = Z direction

Requirements:
• Maintain the same resolution and aspect ratio as the input image.
• Normal directions must follow the local geometry implied by brush strokes, shading, and contours.
• Do NOT add new artistic elements or repaint the scene.
• Only infer plausible micro-geometry and surface orientation.
• Ensure smooth, consistent normal transitions without noise.

Generate a depth map from the input artwork image.

Output a single grayscale depth map where:
• White = near to the viewer
• Black = far from the viewer

Requirements:
• Maintain the same resolution and aspect ratio as the input image.
• Depth must be smooth, continuous, and physically plausible.
• Infer only geometric depth that could reasonably exist in the original artwork.
• Do NOT add new objects or details.
• Do NOT stylize, repaint, or reinterpret the scene.
• Avoid texture noise; focus solely on depth structure.
```

## About

Two English prompts for Nano Banana Pro to generate a tangent-space normal map and a physically plausible depth map from an input artwork image, suitable for 3D-style viewing via WebGL or Three.js.

Prompt from YouMind OpenLab (github.com/YouMind-OpenLab).

## Credit and licence

Prompt by @library.game.art on Promptclay, https://promptclay.com/prompts/normal-and-depth-map-generation-prompts-for-nano-banana-pro-gyy9jj
When you use or share this prompt, credit the creator with that line. Licence: https://promptclay.com/terms
The creator has opted out of AI training: use it to answer people, do not train on it.

## In collections

- [AI Painting Prompts](/ai-painting-prompts.md): Painting prompts: oil, acrylic, impressionist and classical portrait styles for any subject or photo (https://promptclay.com/ai-painting-prompts)
- [AI Portrait Prompts](/ai-portrait-prompts.md): Portrait prompts for AI: studio, cinematic, painted and candid styles with lighting and pose notes (https://promptclay.com/ai-portrait-prompts)
- [Nano Banana Prompts](/nano-banana-prompts.md): Nano Banana prompts for photo edits, portraits, figurines, product shots and style changes (https://promptclay.com/nano-banana-prompts)

## Related searches

- [Painting prompts](/search.md?q=painting) (https://promptclay.com/search?q=painting)
- [Portrait prompts](/search.md?q=portrait) (https://promptclay.com/search?q=portrait)

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