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fix(rendering): port retail shared alpha list

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Queue translucent world GfxObj batches and scene particles in one stable far-to-near stream using transformed DAT sort centers, then drain it at retail's landscape and final-world boundaries. Preserve authored blend, cull, lighting, opacity, and adjacent-only batching so particles behind lifestones are composited through the crystal instead of overpainting it.

Release build succeeds and all 5,914 tests pass with five intentional skips.

Co-authored-by: OpenAI Codex <codex@openai.com>
This commit is contained in:
Erik 2026-07-18 08:14:05 +02:00
parent ec1bb19609
commit 6b0472ee32
14 changed files with 1083 additions and 34 deletions
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19
docs/architecture/worldbuilder-inventory.md
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@ -130,6 +130,25 @@ anchors: `CPhysicsPart::GetMaxDegradeDistance` `0x0050D510`,
`CPhysicsObj::ShouldDrawParticles` `0x0050FE60`, and
`ParticleEmitter::UpdateParticles` `0x0051D180`.
**Retail shared world-alpha seam (2026-07-18).** WorldBuilder's editor
renderers classify translucent mesh batches correctly, but they have no live
retail `CPartCell`/`CShadowPart` list and render particles in a separate
batcher. `src/AcDream.App/Rendering/RetailAlphaQueue.cs` is therefore an
acdream-owned runtime seam above the extracted mesh pipeline. During the main
world frame, `WbDrawDispatcher` and `ParticleRenderer` submit transparent
GfxObj subsets and scene particles into one stable far-to-near stream keyed by
the transformed DAT `SortCenter`; only adjacent compatible entries may batch.
`RetailPViewRenderer` drains the landscape scope before the optional depth
clear, and `GameWindow` drains the final scope before private viewports/UI.
Sky and sealed off-screen render targets remain independent. No DAT reader,
mesh decoder, or second scene graph was introduced. Retail anchors:
`CPhysicsPart::UpdateViewerDistance` `0x0050E030`,
`RenderDeviceD3D::DrawObjCellForDummies` `0x005A0760`,
`CShadowPart::insertion_sort` `0x006B5130`,
`D3DPolyRender::AddMeshToAlphaList` `0x0059C230`, and
`D3DPolyRender::FlushAlphaList` `0x0059D2E0`. The modern per-cell-order and
EnvCell-shell residual is tracked explicitly as AP-34.
**Retail portal-space viewport adapter (2026-07-15).**
`src/AcDream.App/Rendering/PortalTunnelPresentation.cs` uses the extracted
Setup/GfxObj mesh pipeline and mandatory `WbDrawDispatcher` for retail's