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perf(rendering): reconcile only changed attachments

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This commit is contained in:
Erik 2026-07-25 05:18:33 +02:00
parent 6b56f4bef2
commit b9cbf5e040
8 changed files with 246 additions and 14 deletions
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61
tests/AcDream.App.Tests/Rendering/EquippedChildProjectionWithdrawalTests.cs
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@ -257,6 +257,67 @@ public sealed class EquippedChildProjectionWithdrawalTests
Assert.True(record.IsSpatiallyProjected);
}
[Fact]
public void PostNetworkReconcile_SkipsStableTree_AndUpdatesChangedBranchParentFirst()
{
using var fixture = new ControllerFixture((_, _, _) =>
new(
ExactProjectionWithdrawalDisposition.Completed,
Failure: null));
LiveEntityRecord root = fixture.Spawn(0x70000241u, generation: 1);
LiveEntityRecord child = fixture.Spawn(
0x70000242u,
generation: 1,
LiveEntityProjectionKind.Attached);
LiveEntityRecord grandchild = fixture.Spawn(
0x70000243u,
generation: 1,
LiveEntityProjectionKind.Attached);
fixture.InstallAttached(root, child);
fixture.InstallAttached(child, grandchild);
fixture.Poses.Publish(root.WorldEntity!, Array.Empty<Matrix4x4>());
fixture.Controller.Tick();
Assert.Equal(2, fixture.Controller.LastFullPoseCompositionVisits);
fixture.Controller.ReconcileSpatialMutations();
Assert.Equal(0, fixture.Controller.LastReconcilePoseCompositionVisits);
root.WorldEntity!.SetPosition(new Vector3(7f, 8f, 9f));
Assert.True(fixture.Poses.UpdateRoot(root.WorldEntity));
fixture.Controller.ReconcileSpatialMutations();
Assert.Equal(2, fixture.Controller.LastReconcilePoseCompositionVisits);
Assert.Equal(root.WorldEntity.Position, child.WorldEntity!.Position);
Assert.Equal(child.WorldEntity.Position, grandchild.WorldEntity!.Position);
}
[Fact]
public void StablePostNetworkReconcile_AllocatesNoTransitionSnapshots()
{
using var fixture = new ControllerFixture((_, _, _) =>
new(
ExactProjectionWithdrawalDisposition.Completed,
Failure: null));
LiveEntityRecord root = fixture.Spawn(0x70000244u, generation: 1);
LiveEntityRecord child = fixture.Spawn(
0x70000245u,
generation: 1,
LiveEntityProjectionKind.Attached);
fixture.InstallAttached(root, child);
fixture.Poses.Publish(root.WorldEntity!, Array.Empty<Matrix4x4>());
fixture.Controller.Tick();
fixture.Controller.ReconcileSpatialMutations();
long before = GC.GetAllocatedBytesForCurrentThread();
for (int i = 0; i < 1_000; i++)
fixture.Controller.ReconcileSpatialMutations();
long allocated = GC.GetAllocatedBytesForCurrentThread() - before;
Assert.Equal(0L, allocated);
Assert.Equal(0, fixture.Controller.LastReconcilePoseCompositionVisits);
}
[Fact]
public void AcceptedValidParent_WithdrawsWorldProjectionBeforePosePrerequisitesExist()
{