Image Generation

Generate general images/texture assets (not sprites): concept art, reference images, UI backgrounds, posters, banners, etc. Output PNG is automatically imported as Texture2D (Default type), saved to Assets/TJGenerators/History/ by default.

Getting Started

Start from GUI

Menu: AI > Generate > Generate Image, or refer to the getting started section of 3D Model Generation.

Start from CLI

Use the generate_image tool to generate images. Images are regular assets and do not need to be placed in a scene by default — reference them by path after generation.

Input Modes:

Mode	Parameters	Description
Text-to-Image	prompt	Pure text description
Image-to-Image	prompt + image_path	Reference image + text guidance

⚠️ The prompt parameter is always required, even when providing a reference image. For image-to-image, if the user doesn't provide a description, read the reference image content first and then write the prompt.

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Models

Image generation offers 3 models, selectable via generator_id:

Frontier Game Design (Default Model)

• generator_id: frontier-game-design (default)
• Use Cases: Game-style images, concept art, includes game prompt templates
• Key Parameters:
  • prompt (required) / image_path
  • imageSize: square_hd (default) / square / portrait_4_3 / portrait_16_9 / landscape_4_3 / landscape_16_9
  • outputFormat: png (default) / jpeg
  • prompt_template: game_icon (game icon) / concept_art (concept art) / "" (default, no template)

Huoshan SeeDream Image

• generator_id: huoshan_seedream_image (switch when user says "use Huoshan model"/"use SeeDream")
• Use Cases: General text-to-image/image-to-image, supports pixel-level size control and auto background removal
• Key Parameters:
  • prompt (required) / image_path
  • size: Output size (default 2048x2048, 15 presets for 2K/4K)
  • is_segmentation: Whether to auto-remove background (default true; set false for backgrounds/textures)
  • q_value: Segmentation compression quality 1–100 (default 75)
  • resize_width: Output max width (px), 0 = no resize

Frontier (Stylized Effects)

• generator_id: frontier-effect
• Use Cases: Apply stylized/artistic effects on reference images, supports ratio control
• Key Parameters:
  • prompt (required) / image_path
  • resolution: 0.5K / 1K (default) / 2K / 4K
  • aspect_ratio: auto (default) / 16:9 / 9:16 / 1:1 / 4:3 / 3:4 / 3:2 / 2:3 / 5:4 / 4:5 / 21:9
  • output_format: png (default) / jpeg

Model Selection Guide

Scenario	Choice
General images/concept art/game icons (default)	Frontier Game Design
Game-specific prompt templates (game_icon / concept_art)	Frontier Game Design + prompt_template
Need pixel-level size or auto background removal	SeeDream (huoshan_seedream_image)
Stylized effects on reference images / specific aspect ratio	Frontier (frontier-effect)
Need JPEG output	Frontier (output_format) or Game Design (outputFormat)

Output Sizes (size, SeeDream only)

2K: 2048x2048 (default), 2304x1728, 1728x2304, 2560x1440, 1440x2560, 2496x1664, 1664x2496, 3024x1296; 4K: 4096x4096, 4704x3520, 3520x4704, 5504x3040, 3040x5504, 4992x3328, 3328x4992.

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Optimization

Prompt Optimization

• Describe the scene and elements specifically: "a fantasy castle on a cliff overlooking a stormy sea, dramatic lighting" > "a castle"
• Specify art style: "oil painting style" / "photorealistic" / "anime style"
• Frontier Game Design can use prompt_template to auto-add game-style prefixes
• SeeDream supports Chinese prompts, but English is generally more stable

Size & Resolution

• SeeDream minimum size is approximately 1920×1920, smaller sizes are auto-upscaled; if you still get a 400 error, use a preset size
• Frontier low resolution (0.5K/1K) is good for quick previews, 2K/4K for final output
• Choose the right aspect ratio to avoid cropping: 16:9 for UI banners, 1:1 for icons

Background Segmentation

• Need transparent background sprites (game icons/item images) → use generate_sprite instead of generate_image
• generate_image's is_segmentation (SeeDream only) is suitable for concept art background removal, but the output type is Texture2D, not Sprite

Parallel Generation

• Maximum 5 concurrent tasks

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Notes

• ⚠️ Default model is Frontier Game Design; size / is_segmentation / q_value / resize_width only work with SeeDream, resolution / aspect_ratio only work with Frontier, imageSize / outputFormat / prompt_template only work with Game Design
• ⚠️ prompt is always required, even when image_path is provided
• ⚠️ SeeDream minimum size is approximately 1920×1920, requesting smaller sizes may trigger a 400 error
• ⚠️ Image ≠ Sprite: Image output is Texture2D, suitable for concept art/backgrounds/posters; Sprite output is Sprite type, suitable for game icons/items — choose the right tool for your needs
• ⚠️ Not placed in scene by default: Images are regular assets; unless the user explicitly requests it, only generate and reference by path
• ⚠️ Generation takes 30–90 seconds
• ⚠️ Output path: Default Assets/TJGenerators/History/
• ⚠️ Domain Reload: Do not write .cs files to disk during generation