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工作流 / 3D 模型 / Patina：材质提取
Patina：材质提取

Patina：材质提取

Patina: Material Extract

用 Patina 从一张表面照片里提取出可无缝平铺的 PBR 材质。提示词说明要提取哪种表面、保留什么结构，输出的基础贴图与 basecolor、normal、roughness、metalness、height 五张图逐像素对齐。适合照片本身就已经包含目标材质的场景：砖墙、铺装、灰泥、织物。

3D 模型 10 个节点 1 个输入 ComfyUI ≥ 0.43.1 ComfyUI 15 KB

下载工作流 JSON 查看官方来源

下载后把文件拖进 ComfyUI 窗口即可打开。

节点构成

SaveImage × 6
SaveText × 1
MarkdownNote × 1
LoadImage × 1
PatinaMaterialExtractNode × 1

官方标注的模型

Patina

工作流 JSON

和上面「下载工作流 JSON」是同一份文件。

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300 "# Patina Material Extract\n\n**Photo -> seamless, tiling PBR material, extracted.** Point it at a photo that already contains the material you want\nand the prompt says which surface to pull out and what structure to keep. The base texture and the basecolor / normal /\nroughness / metalness / height maps all come from the same latent, so they line up pixel for pixel. Partner (API) node:\nit runs on Comfy's servers, needs an account, nothing renders locally.\n\n## Input Asset\n\n- [patina_chair_webbing.png](https://raw.githubusercontent.com/Comfy-Org/workflow_templates/refs/heads/main/input/patina_chair_webbing.png)\n\n## How to use it\n\n- **Load Image** holds the photo. It does not have to be a flat crop: the node re-synthesises the layout, so a product\n shot works as long as the material itself repeats - here the green and white webbing on a folding chair.\n- `prompt` names the surface to extract, not the scene: `chair webbing fabric` picks the woven straps and ignores the\n chair frame, the court and the paddle. Add the structure to keep (\"keep the weave and the strap edges\") when the\n pattern starts drifting.\n- `strength` (advanced, 0.6 here) sets how far the extracted texture may drift from the photo.\n- Works best on materials whose pattern repeats inside a few hundred pixels - webbing, brick, pavers, planks, plaster.\n Large one-off structures (a rock cliff, aerial terrain, a single object) come back as a repaint that will not tile.\n- For text-only material generation use the Patina Material text-to-material template; to convert a photo into maps\n **without** making it tile, the Patina PBR Maps node is the direct path.\n\n## Outputs - wire in this slot order\n\n`0 texture` . `1 basecolor` . `2 normal` . `3 roughness` . `4 metalness` . `5 height` . `6 expanded_prompt`\n\nEvery map can be switched off, but at least one has to stay on. Fewer maps = a cheaper, faster run.\n\n## Tips that actually matter\n\n- Keep the photo bigger than the output size where you can - the model has more real detail to extract from.\n- `num_inference_steps` tops out at 8; there is nothing to gain above that.\n- `tile_size` is in latent space: 128 is about 1024 px, 64 about 512 px. `tiling_mode` = both / horizontal / vertical.\n- `prompt_expansion` is **off by default on purpose**: the LLM rewrite reframes the prompt as a photo and tends to\n wash out the metalness map.\n- `upscale_factor` 2 or 4 upscales the **maps only** (SeedVR) - the base texture is never upscaled.\n- Dramatic lighting in the source carries into the basecolor: prefer flat, evenly lit photos."
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303 "text": "# Patina Material Extract\n\n**Photo -> seamless, tiling PBR material, extracted.** Point it at a photo that already contains the material you want\nand the prompt says which surface to pull out and what structure to keep. The base texture and the basecolor / normal /\nroughness / metalness / height maps all come from the same latent, so they line up pixel for pixel. Partner (API) node:\nit runs on Comfy's servers, needs an account, nothing renders locally.\n\n## Input Asset\n\n- [patina_chair_webbing.png](https://raw.githubusercontent.com/Comfy-Org/workflow_templates/refs/heads/main/input/patina_chair_webbing.png)\n\n## How to use it\n\n- **Load Image** holds the photo. It does not have to be a flat crop: the node re-synthesises the layout, so a product\n shot works as long as the material itself repeats - here the green and white webbing on a folding chair.\n- `prompt` names the surface to extract, not the scene: `chair webbing fabric` picks the woven straps and ignores the\n chair frame, the court and the paddle. Add the structure to keep (\"keep the weave and the strap edges\") when the\n pattern starts drifting.\n- `strength` (advanced, 0.6 here) sets how far the extracted texture may drift from the photo.\n- Works best on materials whose pattern repeats inside a few hundred pixels - webbing, brick, pavers, planks, plaster.\n Large one-off structures (a rock cliff, aerial terrain, a single object) come back as a repaint that will not tile.\n- For text-only material generation use the Patina Material text-to-material template; to convert a photo into maps\n **without** making it tile, the Patina PBR Maps node is the direct path.\n\n## Outputs - wire in this slot order\n\n`0 texture` . `1 basecolor` . `2 normal` . `3 roughness` . `4 metalness` . `5 height` . `6 expanded_prompt`\n\nEvery map can be switched off, but at least one has to stay on. Fewer maps = a cheaper, faster run.\n\n## Tips that actually matter\n\n- Keep the photo bigger than the output size where you can - the model has more real detail to extract from.\n- `num_inference_steps` tops out at 8; there is nothing to gain above that.\n- `tile_size` is in latent space: 128 is about 1024 px, 64 about 512 px. `tiling_mode` = both / horizontal / vertical.\n- `prompt_expansion` is **off by default on purpose**: the LLM rewrite reframes the prompt as a photo and tends to\n wash out the metalness map.\n- `upscale_factor` 2 or 4 upscales the **maps only** (SeedVR) - the base texture is never upscaled.\n- Dramatic lighting in the source carries into the basecolor: prefer flat, evenly lit photos."
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