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強力なAIサービス

包括的なプロンプトエンジニアリングチュートリアルと実例を使って、最先端のAI生成サービスをご利用いただけます

画像生成

  • Gemini Native (Nano Banana)
  • Imagen 3.0
  • Imagen 4.0

複数のアスペクト比と高度なパラメータを使った高品質なテキストから画像への生成

動画生成

  • Veo 2.0
  • Veo 3.1

HD品質とオーディオ出力によるプロフェッショナルな動画生成

3Dモデル生成

  • Fast 3D

2D画像を数秒でGLBまたはSTL形式の3Dモデルに変換

シンプルで透明な料金体系

ニーズに合ったパッケージをお選びください

スターター

$10
200 coins

1コインあたり$0.050

  • 2,2,2,Gemini Native (Nano Banana) 画像100枚
  • 1,1,1,Imagen 3.0 画像66枚
  • Fast 3D モデル20個
  • Veo 3.1 動画25秒
今すぐ始める
人気

クリエイター

$30
680 coins

1コインあたり$0.044

  • Gemini Native (Nano Banana) 画像340枚
  • Imagen 3.0 画像226枚
  • Fast 3D モデル68個
  • Veo 3.1 動画85秒
今すぐ始める

プロ

$50
1,300 coins

1コインあたり$0.038

  • Gemini Native (Nano Banana) 画像650枚
  • Imagen 3.0 画像433枚
  • Fast 3D モデル130個
  • Veo 3.1 動画162秒
今すぐ始める

スタジオ

$200
5,800 coins

1コインあたり$0.034

  • 2,Gemini Native (Nano Banana) 画像2,900枚
  • 1,Imagen 3.0 画像1,933枚
  • Fast 3D モデル580個
  • Veo 3.1 動画725秒
今すぐ始める

プロンプトエンジニアリングチュートリアルでAI生成をマスター

実際の例と結果を使ったプロフェッショナルなプロンプト作成テクニックを学びましょう。テキストから画像、テキストから動画、画像から動画、画像から3D変換まで、美しいAI生成コンテンツのための実証済みの戦略を網羅した包括的なチュートリアルです。

Gemini Native (Nano Banana) - 画像生成

ベストプラクティス

  • Describe scenes, don't just list keywords: Use narrative descriptions instead of disconnected words
  • Be hyper-specific: Instead of "armor," say "ornate elven plate armor, etched with silver leaf patterns, with a high collar"
  • Use camera terminology: "wide-angle shot," "macro shot," "85mm portrait lens with bokeh"
  • Iterate and refine: Follow up with "can you make the lighting a bit warmer?"

プロンプト例と結果

Photorealistic Portrait:
"A photorealistic close-up portrait of an elderly Japanese ceramicist with deep, sun-etched wrinkles and a warm, knowing smile. He is carefully inspecting a freshly glazed tea bowl. The setting is his rustic, sun-drenched workshop. The scene is illuminated by soft, golden hour light streaming through a window, highlighting the fine texture of the clay. Captured with an 85mm portrait lens, resulting in a soft, blurred background (bokeh). The overall mood is serene and masterful. Vertical portrait orientation."
Result: Photorealistic portrait with bokeh
Stylized Sticker:
"A kawaii-style sticker of a red panda with a cute expression, bold clean outlines, simple cel-shading, pastel colors, transparent background perfect for stickers"
Result: Kawaii red panda sticker
Product Mockup:
"A high-resolution, studio-lit product photograph of a minimalist ceramic coffee mug in matte black, presented on a polished concrete surface. The lighting is a three-point softbox setup designed to create soft, diffused highlights and eliminate harsh shadows. The camera angle is a slightly elevated 45-degree shot to showcase its clean lines. Ultra-realistic, with sharp focus on the steam rising from the coffee. Square image."
Result: Product mockup with studio lighting
Image Editing - Logo Addition:
"Take the first image of the woman with brown hair, blue eyes, and a neutral expression. Add the logo from the second image onto her black t-shirt. Ensure the woman's face and features remain completely unchanged. The logo should look like it's naturally printed on the fabric, following the folds of the shirt."
Input 1: Woman portrait Input 2: Logo Result: Portrait with logo on shirt
E-Commerce Fashion Photo:
"Create a professional e-commerce fashion photo. Take the blue floral dress from the first image and let the woman from the second image wear it. Generate a realistic, full-body shot of the woman wearing the dress, with the lighting and shadows adjusted to match the outdoor environment."
Input 1: Blue floral dress Input 2: Model Result: Model wearing dress outdoors
Image Editing - Object Replacement:
"Using the provided image of a living room, change only the blue sofa to be a vintage, brown leather chesterfield sofa. Keep the rest of the room, including the pillows on the sofa and the lighting, unchanged."
Input: Living room with blue sofa Result: Living room with brown leather sofa
Image Editing - Add Accessory:
"Using the provided image of my cat, please add a small, knitted wizard hat on its head. Make it look like it's sitting comfortably and matches the soft lighting of the photo."
Input: Cat photo Result: Cat with wizard hat

💡 Pro Tip: Gemini excels at multi-image editing and combining elements from different sources. Be specific about which elements to keep unchanged and how to blend new additions naturally.

Imagen 3.0 & 4.0 - 高度な画像生成

プロンプト構造

A good Imagen prompt is descriptive and clear, making use of meaningful keywords and modifiers. Start by thinking of your subject, context, and style:

Prompt structure: Style, Subject, Context
  • Subject: What you want to create
  • Context: Where it appears and the setting
  • Style: How it should look (photography style, mood, aesthetic)

より良い結果のための主要な修飾語

  • Lighting: natural lighting, dramatic lighting, golden hour, warm tones, cool tones
  • Photography styles: close-up photo, street photography, studio photo, movie still, portrait, film noir
  • Camera/lens details: 35mm portrait, macro, wide-angle, bokeh
  • Mood & atmosphere: muted orange warm tones, cinematic, captivating, moody

進化: 短いプロンプトから詳細なプロンプトへ

Short: "A park in the spring next to a lake"
Result: Simple park scene
Medium: "A park in the spring next to a lake, the sun sets across the lake, golden hour"
Result: Park with golden hour lighting
Long: "A park in the spring next to a lake, the sun sets across the lake, golden hour, red wildflowers"
Result: Detailed park with wildflowers

写真スタイルの例

Short, Stylized:
"close-up photo of a woman in her 20s, street photography, movie still, muted orange warm tones"
Result: Short prompt portrait
Long, Descriptive:
"captivating photo of a woman in her 20s utilizing a street photography style. The image should look like a movie still with muted orange warm tones."
Result: Detailed portrait with style

照明の比較

Natural Lighting:
"studio photo of a modern arm chair, natural lighting"
Result: Chair with natural lighting
Dramatic Lighting:
"studio photo of a modern arm chair, dramatic lighting"
Result: Chair with dramatic lighting

スタイルのバリエーション - フィルムノワール

Prompt: "A woman, 35mm portrait, film noir"
Film noir variation 1 Film noir variation 2 Film noir variation 3

画像内のテキスト

Prompt: "A poster with the text "Summerland" in bold font as a title, underneath this text is the slogan "Summer never felt so good""
Result: Poster with text

⚡ Pro Tips: More detailed prompts generally produce more refined results. Use specific descriptors for subject, context, and style. Layer in photography terms like lighting conditions, camera angles, and mood. Experiment with different levels of detail to find what works best for your needs.

Veo 2.0 & 3.1 - 動画生成

プロンプトの必須要素

  1. Subject: Objects, people, or scenery
  2. Action: What the subject does (walking, running, interacting)
  3. Style: Aesthetic direction (cinematic, film noir, sci-fi, animated)
  4. Camera Work: Shot types and movement (dolly shot, aerial view, POV, tracking)
  5. Ambiance: Lighting and color (warm sunlight, cool blue tones, dramatic shadows)
  6. Audio: Describe sounds, dialogue, and ambient noise

対話のフォーマット

To avoid unwanted subtitles, use colons instead of quotes:

✅ Correct:
"A man says: My name is Ben (no subtitles)"
❌ Avoid:
"A man says 'My name is Ben'"
With Emotion:
"Close-up of two people staring at a cryptic drawing on a wall, torchlight flickering. A man murmurs: This must be it. That's the secret code. The woman looks at him and whispering excitedly: What did you find?"

プロンプト例と結果

Cinematic Widescreen:
"Wide cinematic shot of palm trees swaying in a desert landscape at golden hour, warm lighting, gentle wind rustling through fronds, peaceful ambient sounds"
Result: Cinematic palm trees in widescreen
Nature Scene:
"Beautiful waterfall cascading down mossy rocks in a lush forest, misty atmosphere, sound of rushing water, birds chirping in the background"
Result: Waterfall with misty atmosphere
Atmospheric Mood:
"Lone tree in a foggy landscape, moody atmosphere, cool blue tones, mysterious ambiance, gentle wind sounds"
Result: Foggy tree scene
Joyful Ambiance:
"Cute puppy running through a sunny meadow, happy mood, bright colors, playful energy, cheerful background music"
Result: Happy puppy in meadow
Dramatic Mood:
"Person sitting alone in dimly lit room, melancholic atmosphere, cool tones, dramatic shadows, soft piano music, distant rain sounds"
Result: Melancholic dramatic scene

テキストから動画への生成

Veo transforms text prompts into high-quality videos with dialogue, sound effects, and cinematic realism.

対話と効果音

Prompt: "A close up of two people staring at a cryptic drawing on a wall, torchlight flickering. A man murmurs, 'This must be it. That's the secret code.' The woman looks at him and whispering excitedly, 'What did you find?'"

シネマティックなリアリズム

Prompt: "Drone shot following a classic red convertible driven by a man along a winding coastal road at sunset, waves crashing against the rocks below. The convertible accelerates fast and the engine roars loudly."

クリエイティブなアニメーション

Prompt: "A whimsical stop-motion animation of a tiny robot tending to a garden of glowing mushrooms on a miniature planet."

画像から動画への生成

Transform static images into dynamic videos. Upload a reference image and describe the motion, camera work, and atmosphere you want to create.

Using Reference Images:
The video opens with a medium, eye-level shot of a beautiful woman with dark hair and warm brown eyes. She wears a magnificent, high-fashion flamingo dress with layers of pink and fuchsia feathers, complemented by whimsical pink, heart-shaped sunglasses. She walks with serene confidence through the crystal-clear, shallow turquoise water of a sun-drenched lagoon. The camera slowly pulls back to a medium-wide shot, revealing the breathtaking scene as the dress's long train glides and floats gracefully on the water's surface behind her. The cinematic, dreamlike atmosphere is enhanced by the vibrant colors of the dress against the serene, minimalist landscape, capturing a moment of pure elegance and high-fashion fantasy.
Reference image: Flamingo Reference image: Woman with flamingo Reference image: Flamingo with glasses

補間 - 最初と最後のフレームの使用

Create smooth transitions between two images by providing a first frame and last frame. Veo generates the in-between frames to create a seamless video transition.

Example: Ghost girl to empty tree transition
First frame: Ghost girl Last frame: Empty tree Result: Interpolated video transition

Essential Prompt Components

  • Subject & Action: What's happening in the scene (people walking, car driving, robot gardening)
  • Camera Work: Shot types and movement (drone shot, close-up, tracking shot, aerial view)
  • Style: Visual aesthetic (cinematic, stop-motion animation, realistic, stylized)
  • Lighting & Atmosphere: Time of day, mood, weather (sunset, torchlight, golden hour)
  • Audio: Dialogue, sound effects, ambient sounds (engine roaring, waves crashing, whispering)

🎬 Pro Tips: Keep dialogue short (~8 seconds maximum). Layer multiple audio elements (dialogue, ambient sounds, music). Specify camera movements (dolly shot, drone view, tracking shot). Add "(no subtitles)" if you want dialogue without text overlay. Be specific about camera movements, sound details, and atmosphere. For image-to-video, describe the motion you want to see from the static image. Choose aspect ratio: 16:9 (widescreen) or 9:16 (portrait)

Fast 3D - 画像から3Dモデルへ

ソース画像のベストプラクティス

  • Clear subject: Single object with clear edges and definition
  • Good lighting: Even lighting without harsh shadows
  • Clean background: Solid or simple backgrounds work best
  • Multiple angles: Front-facing objects convert more accurately
  • High contrast: Clear distinction between object and background

うまく機能するもの

  • Products and objects (shoes, furniture, gadgets)
  • Characters and creatures (toys, figurines)
  • Architectural elements (buildings, structures)
  • Vehicles (cars, bikes, spacecraft)

出力形式

  • GLB: Best for web and AR applications, includes textures
  • STL: Perfect for 3D printing, geometry only

例: 画像から3Dへの変換

Process: Upload a 2D image of a cup and Fast 3D converts it into a fully textured 3D model in seconds.
Original 2D image of a cup
Input: 2D Image of Cup
Output: Interactive 3D Model (Drag to rotate)

💡 Workflow Tip: Generate your ideal product image with Imagen first, then convert it to 3D with Fast 3D for consistent, high-quality 3D assets. The resulting 3D models can be viewed in any GLB viewer or imported into 3D software like Blender.

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