Gemini Image Generator

Generate images using Google Gemini's image generation capabilities.

Prerequisites

• Python 3.8+
• Google AI Studio API key
• Virtual environment with dependencies

Setup

# Navigate to scripts directory
cd scripts

# Create virtual environment
python3 -m venv venv

# Install dependencies
./venv/bin/pip install -r requirements.txt  # Unix
# or
.\venv\Scripts\pip install -r requirements.txt  # Windows

# Set API key
export GEMINI_API_KEY="your-api-key"  # Unix
# or
$env:GEMINI_API_KEY = "your-api-key"  # PowerShell

Get your API key from Google AI Studio.

Usage

Basic Text-to-Image

python generate.py --prompt "A serene mountain landscape at sunset" --output landscape.png

With Reference Image (Style Transfer)

python generate.py --prompt "Same scene but in winter" --reference landscape.png --output winter.png

Prompt Engineering Tips

For best results, structure prompts as:

[Subject] + [Style] + [Composition] + [Technical] + [Mood]

Example for game assets:

"A bio-mimetic robot with Art Nouveau brass gears and botanical vine patterns, 
centered composition on transparent background, flat vector style suitable for 
game sprite, warm golden hour lighting, whimsical and charming mood"

Style keywords that work well:

• Art styles: Art Nouveau, steampunk, Studio Ghibli, pixel art, vector illustration
• Technical: transparent background, game sprite, icon, UI element, seamless texture
• Mood: whimsical, dramatic, cozy, ethereal, vibrant

Parameters

Parameter	Required	Description
--prompt	Yes	Text description of desired image
--output	Yes	Output file path (.png)
--reference	No	Reference image for style guidance

Troubleshooting

Error	Solution
API key not valid	Check GEMINI_API_KEY is set correctly
403 Forbidden	API key may have IP restrictions
Model not found	Model names change; check Google AI docs
No image generated	Try simpler prompt, check API quota

Integration with Game Assets Team

This skill is the primary image generation tool for the game-assets-team skill. Use it for:

• Concept art exploration
• UI element generation
• Character/Simulin designs
• Background and environment art
• Promotional materials

Always follow the art direction guidelines in game-assets-team for consistent visual style.