# Kling VFX Kling O3 VFX is the latest generation of Kling's video effects technology, replacing the previous O1 version with improved quality and consistency. ### Tutorial {% embed url="" %} ### How It Works 1. **Import video** - Use Import Clip button or drag & drop (3-10 seconds) 2. **Click "Edit"** - On video thumbnail 3. **Select "Kling VFX"** - From model selector 4. **Enter effect prompt** - Describe the effect you want 5. **Optional:** Add reference image to show the desired style/effect 6. **Edit Video** - Apply effects 7. **Compare** - Use Before/After toggle 8. **Done** - Add to chat or close
### Which Tool to Use? | Goal | Best Tool | | ------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------- | | Add rain, fire, fog, or lighting changes to existing footage | **Kling O3 VFX** — this page | | Remove specific objects or people from footage | [Object Eraser](https://docs.chatvideopro.com/features/video-editing-tools/object-eraser-tool) (≤5s clips) | | Swap or remove scene elements (add a car, remove a sign) | [Reshoot (LTX)](https://docs.chatvideopro.com/features/video-editing-tools/reshoot) | | Remove background, keep the subject | [SAM 3 Rotoscoping](https://docs.chatvideopro.com/features/video-editing-tools/sam-3-rotoscoping) | | Generate entirely new VFX-style B-roll | Text-to-Video or Image-to-Video generation | ### What Kling VFX Does Kling VFX adds visual effects while: * **Preserving structure** - Maintains original video composition * **Preserving audio** - Original audio automatically maintained * **Adding effects** - Rain, fire, lighting, weather, atmosphere changes * **Style transformation** - Change lighting, time of day, weather, mood * **Scene modification** - Transform environments and atmospheres ### Two Ways to Use Kling VFX
#### Method 1: Video Only **What it does:** * Uses only your video and text prompt * Good for simple, straightforward effects * Faster workflow * Relies on text description alone **Use when:** * Simple effects (rain, snow, basic lighting) * Quick transformations * You can describe the effect clearly in text **Example:** * Video: Daytime street scene * Prompt: "Make it nighttime with dramatic street lighting" * Result: Day-to-night transformation
#### Method 2: Video + Reference Image (Recommended) **What it does:** * Uses your video + a reference image * Shows the model exactly what you want * More powerful and accurate * Better for complex style changes **Use when:** * Complex style transformations * Specific lighting/atmosphere you want * You want to show, not just describe * Maximum control over the result **How to reference the image:** * Add reference image in the interface * Reference it in your prompt as `@Image1` * Describe how to use it: "Make the scene look like @Image1" **Example:** * Video: Daytime street scene * Reference Image: Stylized nighttime scene (from Nano Banana) * Prompt: "Make the scene nighttime as shown in @Image1" * Result: Matches the reference image style ### The Power Workflow: Nano Banana + Kling VFX The most powerful way to use Kling VFX is to create a reference image first, then use it to guide the video transformation. #### Step 1: Create Stylized Image with Nano Banana **What to do:** 1. Take a frame from your video (or describe the scene) 2. Use Nano Banana to create a stylized version 3. Apply the style you want (nighttime, snowy, different lighting, etc.) **Examples:** * "Make this scene nighttime with neon lights and wet streets" * "Transform this to a snowy winter scene with falling snow" * "Change the lighting to golden hour with warm tones" * "Make it foggy with atmospheric mist" **Result:** A stylized image showing exactly what you want #### Step 2: Use Image as Reference with Kling VFX **What to do:** 1. Import your video 2. Add the Nano Banana image as reference 3. Reference it in your prompt as `@Image1` 4. Describe how to use it **Example prompts:** ``` Make the scene nighttime as shown in @Image1 ``` ``` Transform the video to match the snowy atmosphere in @Image1 ``` ``` Apply the golden hour lighting from @Image1 to the video ``` **Result:** Video transformed to match your reference image #### Why This Works Better * **Shows, don't tell** - Image shows exactly what you want * **More accurate** - Model sees the target style * **Better results** - Visual reference beats text description * **Complex styles** - Can capture nuanced lighting/atmosphere ### Writing Effect Prompts #### What to Describe Focus on **the effect you want to add**, not the entire scene: 1. **Effect type** - "rain", "fire", "snow", "lightning" 2. **Location** - "in the background", "on the subject", "throughout scene" 3. **Intensity** - "heavy rain", "light drizzle", "intense fire" 4. **Lighting changes** - "make it nighttime", "golden hour", "dramatic shadows" 5. **Atmosphere** - "foggy", "misty", "hazy" #### Good Effect Prompts (Video Only) ✅ **Weather Effects:** ``` Add heavy rain throughout the scene with water droplets on camera, wet streets, atmospheric rain effect ``` ✅ **Lighting Changes:** ``` Make it nighttime with dramatic street lighting, dark sky, moody atmosphere, cinematic night look ``` ✅ **Particle Effects:** ``` Add fire in the background with flames and smoke, dramatic lighting from the fire, intense atmosphere ``` #### Good Effect Prompts (With Reference Image) ✅ **Using Reference Image:** ``` Make the scene nighttime as shown in @Image1 ``` ``` Transform the video to match the snowy atmosphere in @Image1 ``` ``` Apply the golden hour lighting from @Image1 to the entire scene ``` ``` Change the scene to match the foggy, atmospheric style in @Image1 ``` #### Bad Effect Prompts ❌ **Too Vague:** ``` Add effects ``` ❌ **Describes Entire Scene:** ``` A person walking in the rain at night ``` *(Kling VFX adds to existing video, doesn't create new scene)* ❌ **No Effect Specified:** ``` Make it better ``` ❌ **Not Using Reference Image:** ``` Make it look like the image ``` *(Should reference as @Image1)* ### Reference Images #### How to Use Reference Images 1. **Add reference image** - Click "+" button in reference image area 2. **Upload image** - Your stylized image (from Nano Banana or other source) 3. **Reference in prompt** - Use `@Image1` in your prompt 4. **Describe usage** - Explain how to use the reference #### When to Use Reference Images * **Complex style changes** - Nighttime, weather, atmosphere * **Specific lighting** - Golden hour, dramatic shadows, mood * **Visual style** - Cinematic look, artistic treatment * **Better accuracy** - When text description isn't enough #### Reference Image Guidelines **Good reference images:** * Show the style/effect you want * Match the scene composition (if possible) * Clear and high quality * Represent the desired transformation **Best practices:** * Create with Nano Banana for best results * Use a single, clear reference image * Ensure good quality * Match the general scene structure ### Use Cases #### Weather Effects **Video Only:** * Import outdoor scene * Prompt: "Add heavy rain with water on camera lens and wet surfaces" * Edit Video * Result: Rain effect added to scene **With Reference Image:** * Create snowy scene image with Nano Banana * Import video * Add reference image * Prompt: "Make the scene snowy as shown in @Image1" * Result: Video matches snowy reference #### Lighting Transformation **Video Only:** * Import daytime scene * Prompt: "Make it nighttime with dramatic street lighting and dark sky" * Edit Video * Result: Day-to-night transformation **With Reference Image:** * Create nighttime scene image with Nano Banana * Import video * Add reference image * Prompt: "Transform to nighttime as shown in @Image1" * Result: Video matches nighttime reference style #### Atmosphere Changes **Video Only:** * Import scene * Prompt: "Add fog throughout the scene with atmospheric mist" * Edit Video * Result: Fog effect added **With Reference Image:** * Create foggy atmosphere image with Nano Banana * Import video * Add reference image * Prompt: "Apply the foggy atmosphere from @Image1" * Result: Video matches foggy reference #### Complex Style Transformation **With Reference Image (Recommended):** * Create stylized scene image with Nano Banana (e.g., "Make this scene cinematic with dramatic lighting and color grading") * Import video * Add reference image * Prompt: "Transform the video to match the cinematic style in @Image1" * Result: Video matches the stylized reference ### Limitations #### Duration * **Minimum:** 3 seconds * **Maximum:** 10 seconds * **Recommended:** 5-8 seconds * **Longer videos:** Trim before processing #### Resolution * **Maximum:** 1080p (2160px width/height) * **4K videos:** Automatically downscaled * **Lower resolution:** Faster processing * **Standard:** 720p-1080p recommended #### Effect Complexity * **Simple effects:** Work best (rain, lighting) * **Complex effects:** Work better with reference images * **Multiple effects:** Can combine in single prompt * **Style transformations:** Best with reference images #### Reference Images * **Maximum:** 1 reference image (when using video) * **Format:** Standard image formats * **Size:** Reasonable file size recommended * **Quality:** Higher quality = better results ### Tips for Best Results 1. **Use reference images** - Show, don't just tell 2. **Create with Nano Banana first** - Best workflow for complex styles 3. **Reference images properly** - Use `@Image1` in prompt 4. **Be specific about effect** - "Heavy rain" vs. "rain" 5. **Describe location** - "in background" vs. "everywhere" 6. **Keep clips short** - 3-10 seconds for best results 7. **Compare results** - Use Before/After toggle 8. **Iterate if needed** - Refine prompts or reference images ### Common Workflows #### Quick Weather Effect (Video Only) 1. Import video (5-10 seconds) 2. Click "Edit" 3. Select Kling VFX 4. Prompt: "Add rain to the scene" 5. Edit Video 6. Compare and Done #### Day-to-Night with Reference (Recommended) 1. Create nighttime scene image with Nano Banana 2. Import daytime video 3. Click "Edit" 4. Select Kling VFX 5. Add reference image 6. Prompt: "Make the scene nighttime as shown in @Image1" 7. Edit Video 8. Compare transformation 9. Done #### Complex Style Transformation 1. Create stylized scene image with Nano Banana * Example: "Make this scene cinematic with dramatic lighting" 2. Import video 3. Click "Edit" 4. Select Kling VFX 5. Add reference image 6. Prompt: "Transform the video to match the style in @Image1" 7. Edit Video 8. Compare result 9. Done #### Weather Change with Reference 1. Create weather scene image with Nano Banana * Example: "Make this scene snowy with falling snow" 2. Import video 3. Click "Edit" 4. Select Kling VFX 5. Add reference image 6. Prompt: "Apply the snowy weather from @Image1" 7. Edit Video 8. Compare result 9. Done ### Troubleshooting #### "Effect not applying" **Solutions:** * Be more specific in your prompt * Describe effect location clearly * Try using a reference image instead * Check video meets requirements (duration, resolution) #### "Style not matching reference" **Solutions:** * Ensure reference image is added * Reference image as `@Image1` in prompt * Describe how to use the reference * Try a clearer reference image * Create reference with Nano Banana for best results #### "Processing failed" **Solutions:** * Check video duration (3-10 seconds) * Verify resolution (max 1080p) * Ensure API keys are configured * Try shorter clip or lower resolution #### "Audio missing" **Solutions:** * Kling VFX preserves original audio automatically * Check original video has audio * Audio should be maintained * Verify audio settings if issue persists #### "Reference image not working" **Solutions:** * Ensure image is added in reference area * Reference as `@Image1` in prompt * Describe how to use it ("as shown in @Image1") * Check image quality and format * Try creating reference with Nano Banana *** **Next:** Learn about Video Upscaling for increasing resolution. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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