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AnyImage/openspec/changes/add-cutout-polyline/proposal.md
nan 938d95db0f Add new functionality for image rectification and depth metadata handling
- Implemented a preview tool for rectifying images with interactive aspect controls in `preview.py`.
- Added tests for depth metadata loading to ensure consistent schema usage in `test_depth_metadata.py`.
- Developed comprehensive tests for cutout calibration processes in `test_cutout_calibration.py`, including stability checks and depth calibration.
- Created tests for frame compositing operations in `test_frame_compositing.py`, ensuring correct handling of depth and transparency.
- Introduced material slot inheritance functionality in `material_slots.py` to manage geometry material assignments.
- Built shared shader nodes for material processing in `shader.py`, including roughness and bump mapping setups.
2026-09-12 19:20:06 +08:00

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## Why
Cutout 目前只能自由绘制 Lasso,沿直线轮廓剪出时需要逐点定义边界。复用 Mask 的 Polyline 交互,并为这种剪出方式设置 Uniform 厚度,可减少手动调整;Mask 使用 Extend 和默认 Set,使名称与常用操作一致。
## What Changes
- Cutout 增加 Gesture 选项 Lasso / Polyline,默认 Lasso,复用共用逐点交互和选区提交链路。
- Polyline 剪出创建使用 `O Image Depth Cutout` 的 Depth Solid 对象时,自动设置修改器 Mode 为 Uniform。
- `O Image Depth Cutout` 的 Uniform Thickness 接口默认值改为 0.5(资产中显示为 Thickness)。
- **BREAKING** Mask 的 `ADD` / Add 统一重命名为 `EXTEND` / Extend,保留扩展 Alpha 的运算语义;默认模式从 Subtract 改为 Set。
## Capabilities
### New Capabilities
- `cutout-polyline`: Cutout 手势选择、共用 Polyline 交互,以及创建结果的 Uniform 初始化。
- `mask-mode-options`: Mask 的 Set / Extend / Subtract 名称、运算和默认值。
### Modified Capabilities
无。当前 `openspec/specs` 尚无已归档的对应规范。
## Impact
- `properties.py`、`common/viewport.py`、`operators/cutout_tool`、`operators/mask_tool.py` 和相关注册、交互、对象创建测试。
- `tools/nodes/groups/image_depth_cutout.py`、节点资产 `O_AnyImage.blend` 及节点测试;实现阶段需运行节点构建与验证。
- 无新增依赖。已有 change 中的 Mask、Polyline 和 Cutout 提案作为实现背景,本 change 定义本次行为。