# WBV2-P1110-000: render pipeline module

- task: `WBV2-P1110-000`
- parent: `WBV2-P1109-000`
- status: `in_progress`
- gap: `workflow:module_render_pipeline`
- ownerFamily: `RENDER`
- targetImplementationClass: `LOCAL_BOUNDED`

## 目标

按功能模块验证本地/服务端 render routing、Three/WebGPU 资源预算、Blender reference image comparison 和 offscreen parity。

## 输入与范围

- Blender Main/API: `blender-5.2.0/source/blender/web_engine/web_engine_main_state.cpp`, `blender-5.2.0/source/blender/web_engine/web_engine_api.cpp`
- Render protocol: `web/protocol/render-routing.ts`, `web/protocol/render-budget.ts`, `web/protocol/render-capabilities.ts`, `web/protocol/render-image-comparison.ts`, `web/protocol/server-render-job.ts`
- Runtime: `web/app/src/three-adapter/render-routing.ts`, `web/app/src/three-adapter/render-image-comparison.ts`, `web/app/src/workers/viewport-render.worker.ts`, `web/app/src/app/App.tsx`
- Existing receipts: `tests/golden/WBV2-P5-001/manifest.json`, `tests/golden/WBV2-P30-000/manifest.json`

## 验收

```bash
npm --prefix web run test:render-resource-budget
npm --prefix web run test:render-routing
npm --prefix web run test:render-reference
npm --prefix web run typecheck
```

必须记录 bounded local routing、reference metric 正例、unknown backend/预算溢出/错误构图负例、previous texture retention、main/offscreen parity、Chromium 和确定性第二次 render。完整渲染家族仍不宣称 parity。

## 交付与回滚

- Receipt: `tests/golden/WBV2-P1110-000/module-receipt.json`
- Manifest: `tests/golden/WBV2-P1110-000/manifest.json`
- Status: `docs/status/WBV2-P1110-000.md`
- 回滚：恢复 P1109 manifest 为 queue parent，不改写 P5/P30 receipt。