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phase(N.5) Task 11: translucency partition contract test

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Locks in Decision 2 (Opaque + ClipMap → opaque indirect; AlphaBlend +
Additive + InvAlpha → transparent indirect). Catches future refactors
that drift the partition — silent visual regression otherwise (groups
rendered in the wrong pass with the wrong blend state).

Adds public static IsOpaquePublic shim on WbDrawDispatcher; the
underlying IsOpaque stays private.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-05-08 20:53:36 +02:00
parent f533414edf
commit cfe1ca3151
2 changed files with 32 additions and 0 deletions
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7
src/AcDream.App/Rendering/Wb/WbDrawDispatcher.cs
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@ -643,6 +643,13 @@ public sealed unsafe class WbDrawDispatcher : IDisposable
return new IndirectLayoutResult(opaqueCount, transparentCount, opaqueCount * DrawCommandStride);
}
/// <summary>
/// Public test shim for <see cref="IsOpaque"/>. Locks in the N.5 Decision 2
/// translucency partition: Opaque + ClipMap → opaque indirect; AlphaBlend +
/// Additive + InvAlpha → transparent indirect.
/// </summary>
public static bool IsOpaquePublic(TranslucencyKind t) => IsOpaque(t);
private static bool IsOpaque(TranslucencyKind t)
=> t == TranslucencyKind.Opaque || t == TranslucencyKind.ClipMap;