nan
bdbde1a10d
- Renamed "Base Plane Depth" to "Reference Depth" across validate_cutout.py for consistency. - Introduced a new specification for Cutout mesh sampling to ensure source pixel spacing is preserved and limits are applied correctly. - Unified naming conventions for image editing results to maintain consistency across Remove Background, Upscale, and Crop operations. - Updated the handling of Refine Selection to ensure it retains the original bounds and does not apply unnecessary cropping. - Enhanced material generation logic to connect image color directly to IOR Level, improving the rendering of dark areas. - Established clear requirements for geometry depth controls and image result materials to ensure consistent behavior across different components. - Removed outdated logic and ensured all changes are documented and tested for regression.
45 lines
3.1 KiB
Markdown
45 lines
3.1 KiB
Markdown
# Crop Tool
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工具栏保留两个独立 AnyImage 入口：四合一 Crop Tool 组与紧接其后的 Cutout Tool。Crop Tool 依次包含 Crop Box、Crop Lasso、Crop Polyline 和 Crop Perspective。
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## 工具设置
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四个子工具各自保存 **Keep Original**，默认关闭。关闭时结果替换源 Image Empty；开启时复制源对象承载结果，保留但取消选择原 Empty，并选择、激活新结果。
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Crop Box、Crop Lasso 和 Crop Polyline 还分别保存 **Invert**；Box 与 Lasso 分别保存 **Refine Selection**。这些状态互不共享。Crop Perspective 没有 Invert 或 Refine Selection。Crop 不注册选项字母快捷键。
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## 执行过程
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```mermaid
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flowchart TD
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Group["Crop Box / Lasso / Polyline / Perspective"]
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Group --> Kind{"Selection Crop？"}
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Kind -- "Box / Lasso / Polyline" --> Path["采集 SelectionPath"]
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Path --> Mask["栅格化 SelectionMask"]
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Mask --> Refine{"Box / Lasso Refine Selection？"}
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Refine -- "否" --> Local["源 Alpha × Selection"]
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Refine -- "是" --> Job["refine-image-selection<br/>保持 Selection bounds"]
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Job --> Refined["BEN2 Alpha × Selection"]
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Kind -- "Perspective" --> Quad["四点 Quad 与 Homography"]
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Local --> Result["创建结果 Image"]
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Refined --> Result
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Quad --> Result
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Result --> Keep{"当前子工具 Keep Original？"}
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Keep -- "否" --> Replace["替换源 Empty"]
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Keep -- "是" --> Copy["保留源 Empty<br/>选择并激活结果 Empty"]
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```
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## Selection Crop
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`box.py`、`lasso.py` 和 `polyline.py` 定义 WorkspaceTool，交互与落地集中在 `selection.py`。公共 `CropSelectionGesture` 从 `common/viewport.py` 读取当前子工具的独立设置，并把内存中的 `SelectionPath` 交给 `CropImageSelection`。
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本地路径在几何 bounds 内把 Selection 值乘入源 Alpha，再按可见内容紧裁切。Box 或 Lasso 开启 Refine Selection 时，Operator 写出保留源 Alpha 的 bounds 矩形，并把已栅格化的 Selection Mask 保存为同一临时容器内的 Blender 本地 sidecar。`server/jobs/refine_image_selection.py` 返回与输入同尺寸的 `Source Alpha × BEN2 Alpha` RGBA；Blender 读取 sidecar，把 Selection 值乘入结果 Alpha，并以提交前的 bounds 创建结果 Image。Job request 只包含图片输入、模型和设备；Keep Original 在 Blender 主线程落地结果时执行。
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## Crop Perspective
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`perspective.py` 接受任意顺序的四个角点并规范为凸 Quad，创建 512 × 512 预览，随后按目标宽高比执行分块 Homography。输出最长边不超过 8192 px，总像素不超过 16,777,216；插值使用预乘 Alpha，结果按可见 Alpha 紧裁切。
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四种 Crop 最终都调用 `common/image.py` 的 `place_empty_image_result()`。该入口负责替换或复制 Image Empty、画布对齐、Collection 归属，以及 Keep Original 下选择并激活结果对象。
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本地像素路径与 Refine Job 路径都通过公共 Image 编辑结果入口创建数据块。结果以源 Image 的完整名称请求命名，不移除 `.png` 等名称内容，也不添加材质贴图后缀；源 Image 被保留时产生的 `.001` 等数字后缀完全由 Blender 处理。
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