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fix(rendering): reconcile shadow roots from live runtime

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Recover ordinary live roots from LiveEntityRuntime's canonical active spatial workset instead of relying on already-retained derived records. Keep attached children callback-authoritative, cache immutable selection geometry fingerprints, and pin zero-allocation retained update paths with regression tests.

Release gate: 3,733 App tests / 3 skips; 8,217 complete-solution tests / 5 skips.

Co-Authored-By: OpenAI Codex <codex@openai.com>
This commit is contained in:
Erik 2026-07-24 22:45:14 +02:00
parent 056bbd4efd
commit 91463db551
7 changed files with 272 additions and 15 deletions
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39
tests/AcDream.App.Tests/Rendering/ArchRenderSceneTests.cs
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@ -290,6 +290,45 @@ public sealed class ArchRenderSceneTests
Assert.Equal(current.Bounds, stored.Bounds);
}
[Fact]
public void TransformUpdateBatch_ReusesRetainedStorage()
{
const int count = 1_000;
RenderSceneGeneration generation = Generation(11);
using var scene = new ArchRenderScene(generation);
var registrations = new RenderProjectionDelta[count];
var updates = new RenderProjectionDelta[count];
for (int index = 0; index < count; index++)
{
RenderProjectionRecord record = Record(
(ulong)index + 1,
1,
RenderProjectionClass.ActiveAnimatedStatic,
x: index);
registrations[index] = RenderProjectionDelta.Register(
generation,
(ulong)index + 1,
record);
updates[index] = RenderProjectionDelta.Update(
RenderProjectionDeltaKind.UpdateTransform,
generation,
(ulong)count + (ulong)index + 1,
record with
{
Transform = new RenderTransform(
Matrix4x4.CreateTranslation(index + 1, 0, 0)),
});
}
scene.Apply(registrations);
long before = GC.GetAllocatedBytesForCurrentThread();
scene.Apply(updates);
long allocated = GC.GetAllocatedBytesForCurrentThread() - before;
Assert.True(allocated == 0, $"Allocated {allocated:N0} bytes.");
}
[Fact]
public void Digest_IsStableAcrossRegistrationOrderAndBufferReuse()
{