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nan 076a8c90f1 Add specifications for two-times upscale and unified depth plane features

- Introduced the two-times upscale specification detailing requirements for unified output, fixed model presets, arbitrary dimensions, and consistent job behavior.
- Added scenarios for existing models, repeated upscale, and handling of alpha preservation.
- Created the unified depth plane specification outlining geometry modes, stable interface, and asset evaluation.
- Defined scenarios for mode switching, relief and camera preservation, and validation of delivered assets.

2026-09-17 17:19:05 +08:00

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image-tool-ai-availability Specification

Purpose

TBD - created by archiving change gate-cutout-ai-options. Update Purpose after archive.

Requirements

Requirement: AI setup entry precedes dependent tool settings

当 AI 环境或所需模型未就绪时，系统 SHALL 在 Cutout、Image Box 和 Image Lasso 的工具设置开头显示 AI 设置按钮，并使用当前 AI 状态对应的设置文案。

Scenario: Cutout AI setup entry is first

WHEN AI 未就绪且用户激活 Cutout 工具
THEN 工具设置 SHALL 先显示 AI 设置按钮，再显示 Fit to Foreground、Mesh Sampling Spacing 和 Generate Normal Map

Scenario: Image region tool AI setup entry is first

WHEN AI 未就绪且用户激活 Image Box 或 Image Lasso
THEN 工具设置 SHALL 先显示 AI 设置按钮，再显示 Fit to Foreground

Scenario: AI setup entry is omitted when ready

WHEN AI 环境和所需模型均已就绪
THEN Cutout、Image Box 和 Image Lasso 的工具设置 SHALL 不显示 AI 设置按钮

Requirement: AI-dependent settings follow AI availability

系统 SHALL 仅在 AI 环境和所需模型均已就绪时允许启用图像区域工具的 AI 依赖设置。

Scenario: Dependent settings are disabled without AI

WHEN AI 未就绪
THEN Cutout 的 Fit to Foreground 和 Generate Normal Map SHALL 不可编辑
THEN Image Box 和 Image Lasso 的 Fit to Foreground SHALL 不可编辑
THEN Cutout 的 Mesh Sampling Spacing SHALL 保持可编辑

Scenario: Dependent settings are enabled with AI

WHEN AI 环境和所需模型均已就绪
THEN Cutout 的 Fit to Foreground 和 Generate Normal Map SHALL 可编辑
THEN Image Box 和 Image Lasso 的 Fit to Foreground SHALL 可编辑

Requirement: Cutout shape choices follow AI availability

系统 SHALL 根据 AI 可用性限制 Cutout shape pie 中的可选 shape，同时保留四种 shape 的底层实现。

Scenario: Two local shapes without AI

WHEN AI 未就绪且用户完成 Cutout 区域选择
THEN shape pie SHALL 只显示 Surface 和 Balloon

Scenario: Four shapes with AI

WHEN AI 环境和所需模型均已就绪且用户完成 Cutout 区域选择
THEN shape pie SHALL 显示 Surface、Balloon、Depth Balloon 和 Depth Surface

WHEN a displayed Cutout shape is selected on a Blender version that exposes modifier inputs through runtime RNA
THEN the system SHALL assign the matching string enum identifier and create the shape successfully

Requirement: Stale AI settings do not trigger generation

系统 MUST 在区域交互读取设置时忽略 AI 未就绪状态下遗留为真的 AI 依赖选项。

Scenario: Local Cutout remains local with stale settings

WHEN AI 未就绪、Fit to Foreground 或 Generate Normal Map 的保存值为真，且用户选择 Surface 或 Balloon
THEN Cutout operator SHALL 接收关闭的 AI 依赖选项
THEN 操作 SHALL 不因这些遗留值启动 AI job 或打开 AI 设置流程

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