nan
938d95db0f
- 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.
22 lines
1.4 KiB
Markdown
22 lines
1.4 KiB
Markdown
# Frame 多图合成
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`operators/frame_tool/operators.py` 定义 `FrameImages` 和 `FrameTool`。`projection.py` 负责视图投影、交叠和结果平面定位，`compositing.py` 负责像素深度排序与边界覆盖采样，`__init__.py` 导出类型及注册清单。Frame 将选中的静态 Image Empty 按当前视图合成为一张图片。
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```mermaid
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flowchart TD
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A[拖出屏幕矩形] --> B[冻结视图矩阵并收集选中静态图片]
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B --> C[检查矩形与 active 图片的有效投射交集]
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C --> D[按 Region 与 Maximum Frame Resolution 计算输出尺寸]
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D --> E[观察射线投影到各图片平面]
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E --> F[按样本深度从远到近合成，等深度 active 优先]
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F --> G[边界覆盖采样与独立 Alpha]
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G --> H[创建 Packed Image 并复用 active Object]
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H --> I[删除其他参与图片对象并提交 Undo]
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```
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正交视图接受有限深度，透视视图采样观察方向前方的交点。交叠检查采用连续投影范围；输出尺寸受 Region、最长边上限和总像素上限约束。
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RGB 与 Alpha 分别累计，保留被 Mask 隐藏的有效颜色。边界使用覆盖采样，内部复用直接采样，避免黑边和不必要的模糊。结果平面朝向观察者，位置由 active 图片的有效深度确定。
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Frame 保留 active 对象身份、名称和 Collection；图像替换复用 [Common](../common.md) 的共享数据与失败恢复逻辑。
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