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You can use the **EmptySD3LatentImage** node on the right to connect to **KSamper** and customize the size of the **latent_image**." ] }, { "flags": {}, "id": 188, "inputs": [], "mode": 4, "order": 4, "outputs": [ { "links": null, "localized_name": "LATENT", "name": "LATENT", "type": "LATENT" } ], "pos": [ 1300, -110 ], "properties": { "Node name for S&R": "EmptySD3LatentImage", "cnr_id": "comfy-core", "ver": "0.3.41" }, "size": [ 310, 106 ], "type": "EmptySD3LatentImage", "widgets_values": [ 1024, 1024, 1 ] }, { "flags": {}, "id": 31, "inputs": [ { "link": 58, "localized_name": "model", "name": "model", "type": "MODEL" }, { "link": 57, "localized_name": "positive", "name": "positive", "type": "CONDITIONING" }, { "link": 238, "localized_name": "negative", "name": "negative", "type": "CONDITIONING" }, { "link": 291, "localized_name": "latent_image", "name": "latent_image", "type": "LATENT" } ], "mode": 0, "order": 7, "outputs": [ { "links": [ 52 ], "localized_name": "LATENT", "name": "LATENT", "slot_index": 0, "type": "LATENT" } ], "pos": [ 1300, 70 ], "properties": { "Node name for S&R": "KSampler", "cnr_id": "comfy-core", "ver": "0.3.38" }, "size": [ 320, 262 ], "type": "KSampler", "widgets_values": [ 784381637916598, "randomize", 20, 1, "euler", "simple", 1 ] }, { "bgcolor": "#353", "color": "#232", "flags": {}, "id": 6, "inputs": [ { "link": 59, "localized_name": "clip", "name": "clip", "type": "CLIP" }, { "link": 300, "localized_name": "text", "name": "text", "type": "STRING", "widget": { "name": "text" } } ], "mode": 0, "order": 5, "outputs": [ { "links": [ 237, 294 ], "localized_name": "CONDITIONING", "name": "CONDITIONING", "slot_index": 0, "type": "CONDITIONING" } ], "pos": [ 1100, 590 ], "properties": { "Node name for S&R": "CLIPTextEncode", "cnr_id": "comfy-core", "ver": "0.3.38" }, "size": [ 400, 220 ], "title": "CLIP Text Encode (Positive Prompt)", "type": "CLIPTextEncode", "widgets_values": [ "Using this elegant style, create a portrait of a swan wearing a pearl tiara and lace collar, maintaining the same refined quality and soft color tones." ] } ], "outputNode": { "bounding": [ 1680, 315, 120, 60 ], "id": -20 }, "outputs": [ { "id": "e940d353-8345-44cd-a2f1-676648b44d71", "linkIds": [ 240 ], "localized_name": "IMAGE", "name": "IMAGE", "pos": [ 1700, 335 ], "type": "IMAGE" } ], "revision": 0, "state": { "lastGroupId": 6, "lastLinkId": 300, "lastNodeId": 191, "lastRerouteId": 0 }, "version": 1, "widgets": [] } ] }, "extra": { "VHS_KeepIntermediate": true, "VHS_MetadataImage": true, "VHS_latentpreview": false, "VHS_latentpreviewrate": 0, "ds": { "offset": [ 916.5519512444374, 378.98625937747136 ], "scale": 0.7541523813589474 }, "frontendVersion": "1.38.6", "groupNodes": {}, "workflowRendererVersion": "LG" }, "groups": [], "id": "7cbcec68-7fa6-47bb-a38a-da689949a001", "last_link_id": 301, "last_node_id": 192, "links": [ [ 299, 190, 0, 192, 0, "IMAGE" ], [ 300, 191, 0, 192, 1, "IMAGE" ], [ 301, 192, 0, 136, 0, "IMAGE" ] ], "nodes": [ { "bgcolor": "#000", "color": "#432", "flags": {}, "id": 184, "inputs": [], "mode": 0, "order": 0, "outputs": [], "pos": [ -960, 40 ], "properties": {}, "size": [ 510, 400 ], "title": "Model links", "type": "MarkdownNote", "widgets_values": [ "[tutorial](https://docs.comfy.org/tutorials/flux/flux-1-kontext-dev)\n\n**diffusion model**\n\n- [flux1-dev-kontext_fp8_scaled.safetensors](https://huggingface.co/Comfy-Org/flux1-kontext-dev_ComfyUI/resolve/main/split_files/diffusion_models/flux1-dev-kontext_fp8_scaled.safetensors)\n\n**vae**\n\n- [ae.safetensors](https://huggingface.co/Comfy-Org/Lumina_Image_2.0_Repackaged/blob/main/split_files/vae/ae.safetensors)\n\n**text encoder**\n\n- [clip_l.safetensors](https://huggingface.co/comfyanonymous/flux_text_encoders/blob/main/clip_l.safetensors)\n- [t5xxl_fp16.safetensors](https://huggingface.co/comfyanonymous/flux_text_encoders/resolve/main/t5xxl_fp16.safetensors) or [t5xxl_fp8_e4m3fn_scaled.safetensors](https://huggingface.co/comfyanonymous/flux_text_encoders/resolve/main/t5xxl_fp8_e4m3fn_scaled.safetensors)\n\nModel Storage Location\n\n```\nšŸ“‚ ComfyUI/\nā”œā”€ā”€ šŸ“‚ models/\nā”‚ ā”œā”€ā”€ šŸ“‚ diffusion_models/\nā”‚ ā”‚ ā””ā”€ā”€ flux1-dev-kontext_fp8_scaled.safetensors\nā”‚ ā”œā”€ā”€ šŸ“‚ vae/\nā”‚ ā”‚ ā””ā”€ā”€ ae.safetensor\nā”‚ ā””ā”€ā”€ šŸ“‚ text_encoders/\nā”‚ ā”œā”€ā”€ clip_l.safetensors\nā”‚ ā””ā”€ā”€ t5xxl_fp16.safetensors ꈖ者 t5xxl_fp8_e4m3fn_scaled.safetensors\n```\n" ] }, { "bgcolor": "#000", "color": "#432", "flags": {}, "id": 186, "inputs": [], "mode": 0, "order": 1, "outputs": [], "pos": [ -960, 500 ], "properties": {}, "size": [ 510, 670 ], "title": "Flux Kontext Prompt Techniques", "type": "MarkdownNote", "widgets_values": [ "\n## Flux Kontext Prompt Techniques\n\n### 1. Basic Modifications\n- Simple and direct: `\"Change the car color to red\"`\n- Maintain style: `\"Change to daytime while maintaining the same style of the painting\"`\n\n### 2. Style Transfer\n**Principles:**\n- Clearly name style: `\"Transform to Bauhaus art style\"`\n- Describe characteristics: `\"Transform to oil painting with visible brushstrokes, thick paint texture\"`\n- Preserve composition: `\"Change to Bauhaus style while maintaining the original composition\"`\n\n### 3. Character Consistency\n**Framework:**\n- Specific description: `\"The woman with short black hair\"` instead of \"she\"\n- Preserve features: `\"while maintaining the same facial features, hairstyle, and expression\"`\n- Step-by-step modifications: Change background first, then actions\n\n### 4. Text Editing\n- Use quotes: `\"Replace 'joy' with 'BFL'\"`\n- Maintain format: `\"Replace text while maintaining the same font style\"`\n\n## Common Problem Solutions\n\n### Character Changes Too Much\nāŒ Wrong: `\"Transform the person into a Viking\"`\nāœ… Correct: `\"Change the clothes to be a viking warrior while preserving facial features\"`\n\n### Composition Position Changes\nāŒ Wrong: `\"Put him on a beach\"`\nāœ… Correct: `\"Change the background to a beach while keeping the person in the exact same position, scale, and pose\"`\n\n### Style Application Inaccuracy\nāŒ Wrong: `\"Make it a sketch\"`\nāœ… Correct: `\"Convert to pencil sketch with natural graphite lines, cross-hatching, and visible paper texture\"`\n\n## Core Principles\n\n1. **Be Specific and Clear** - Use precise descriptions, avoid vague terms\n2. **Step-by-step Editing** - Break complex modifications into multiple simple steps\n3. **Explicit Preservation** - State what should remain unchanged\n4. **Verb Selection** - Use \"change\", \"replace\" rather than \"transform\"\n\n## Best Practice Templates\n\n**Object Modification:**\n`\"Change [object] to [new state], keep [content to preserve] unchanged\"`\n\n**Style Transfer:**\n`\"Transform to [specific style], while maintaining [composition/character/other] unchanged\"`\n\n**Background Replacement:**\n`\"Change the background to [new background], keep the subject in the exact same position and pose\"`\n\n**Text Editing:**\n`\"Replace '[original text]' with '[new text]', maintain the same font style\"`\n\n> **Remember:** The more specific, the better. Kontext excels at understanding detailed instructions and maintaining consistency. 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