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docs(render): close Campaign V slice V2

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Records V2's landing (V2a d365476e, V2b 1f1f6c08, V2c a85743f7) in the
campaign doc's status banner and slice table, alongside the actual
per-renderer table-ownership shape (each of WbDrawDispatcher, EnvCellRenderer,
TerrainModernRenderer, and ParticleRenderer owns its own GlBindlessHandleTable
rather than one shared TextureCache-owned instance) and the measured
pixel-gate differing-pixel fractions.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-07-27 16:04:50 +02:00
parent a85743f70d
commit 22b5abba57
1 changed files with 3 additions and 2 deletions
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5
docs/plans/2026-07-27-vulkan-campaign.md
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@ -1,7 +1,8 @@
# Campaign V — OpenGL → Vulkan rendering migration
**Status:** Active. V0 (pinned RHI contract) landed 2026-07-27. V1 (GL backend
implementation, dark) landed 2026-07-27.
implementation, dark) landed 2026-07-27. V2 (shader dialect + texture-index
migration on GL, three sub-commits) landed 2026-07-27.
**Scope:** Windows x64 + Linux x64. No macOS.
**End state:** one Vulkan 1.3 backend; the OpenGL backend is deleted.
@ -435,7 +436,7 @@ because sample positions are not specified across implementations.
|---|---|---|
| **V0** ✅ | Pinned RHI contract, `RecordingGpuDevice`, contract tests, this document, roadmap entry. | build + tests + contract tests |
| **V1** ✅ | GL backend: `GlGpuDevice` (no Chorizite inheritance), buffers (`BufferSubData`, behaviour-preserving), ring over the existing fence-bounded pattern, textures + the binding-9 handle table, samplers, pipelines, timers, backbuffer capture. Constructed in composition (`HostInputCameraCompositionPhase`, right after the frame-flight controller); no consumers yet. | build + tests + GL unit tests + pixel gate (trivially identical — a tripwire) |
| **V2** | Shader dialect + texture-index migration **on GL**: `uvec2 textureHandle` → `uint textureIndex`, a binding-9 handle table, `common.glsl` preamble, CPU batch-struct change. Sub-commits: V2a mesh, V2b terrain, V2c particles. **The table is owned by the existing texture caches, NOT by `GlGpuDevice`** — see the note below. | pixel gate per sub-commit |
| **V2** ✅ | Shader dialect + texture-index migration **on GL**: `uvec2 textureHandle` → `uint textureIndex`, a binding-9 handle table, `common.glsl` preamble, CPU batch-struct change. Sub-commits: V2a mesh (`d365476e`), V2b terrain (`1f1f6c08`), V2c particles (`a85743f7`). Each renderer (WbDrawDispatcher, EnvCellRenderer, TerrainModernRenderer, ParticleRenderer) owns its own `GlBindlessHandleTable` rather than one shared `TextureCache`-owned instance — see the note below, which the per-slice commit messages elaborate on. | pixel gate per sub-commit (V2a 2.84e-05, V2b 2.49e-05 differing-pixel fraction against parent, both well under the 0.001 threshold and within the documented ~33x same-commit noise margin). V2c has no automated pixel coverage (particles are outside the offline gate's fixed view) — flagged for a user visual check. |
| **V3** | Clip-space and sRGB audit: verify every projection producer is [0,1] convention, confirm clip-plane derivation, record the sRGB swapchain decision and the depth-precision divergence class here. | pixel gate + connected lifecycle |
| **V4a** | `TextRenderer` (three fence-buffered VBO sets → ring allocations), `BitmapFont`, `DebugLineRenderer`, the UI RenderSurface upload path, `UiViewport`'s texture handoff. | pixel gate (UI-heavy checkpoints) |
| **V4b** | `GlobalMeshBuffer` + `ObjectMeshManager` onto `IGpuBuffer`; arena, LRU and ledger logic untouched. | pixel gate |