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fix(rendering): preserve exact scene traversal order

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This commit is contained in:
Erik 2026-07-25 02:03:58 +02:00
parent 06e7754619
commit e0f36caa70
12 changed files with 500 additions and 77 deletions
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73
tests/AcDream.App.Tests/Rendering/RenderScenePViewFrameProductTests.cs
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@ -262,6 +262,79 @@ public sealed class RenderScenePViewFrameProductTests
Assert.Equal(2, logs.Count);
}
[Fact]
public void Controller_RejectsEqualMembershipInDifferentTraversalOrder()
{
WorldEntity first =
Entity(1_000_001, 0x8000_0001, parentCell: null);
WorldEntity second =
Entity(1_000_002, 0x8000_0002, parentCell: null);
var oracle = new CurrentRenderSceneOracle();
var partition = new InteriorEntityPartition.Result();
InteriorEntityPartition.Partition(
partition,
[],
[Entry([first, second])],
oracle);
oracle.BeginPViewFrame();
oracle.ObservePViewBucket(
CurrentRenderPViewRoute.DynamicLast,
0,
0,
[first, second]);
oracle.CompletePViewFrame();
oracle.BeginDispatcherFrame();
oracle.ObserveDispatcherDraw(
WbDrawDispatcher.EntitySet.All,
entitiesWalked: 2,
[
(first, 0, Landblock),
(second, 0, Landblock),
]);
using var shadow = new RenderSceneShadowRuntime(Generation);
RenderProjectionRecord firstRecord = Project(first) with
{
SortKey = new RenderSortKey(2),
};
RenderProjectionRecord secondRecord = Project(second) with
{
SortKey = new RenderSortKey(1),
};
shadow.Journal.Register(in firstRecord);
shadow.Journal.Register(in secondRecord);
shadow.DrainUpdateBoundary();
var controller = new RenderScenePViewFrameProductController(
shadow,
oracle);
PortalVisibilityFrame portal = Portal(Cell);
ClipFrameAssembly clip = FullScreenClip(Cell);
ViewconeCuller viewcone =
ViewconeCuller.Build(clip, Matrix4x4.Identity);
controller.BuildAndCompare(
portal,
clip,
viewcone,
[],
[],
EmptyCellSource.Instance,
[],
Landblock,
rootIsOutdoor: true);
RenderFrameProductComparisonSnapshot snapshot =
controller.Snapshot;
Assert.Equal(1, snapshot.MismatchCount);
Assert.Contains(
$"ProjectionId = {LiveRenderProjectionJournal.ProjectionId(first.Id)}",
snapshot.FirstMismatch);
Assert.Contains(
$"ProjectionId = {LiveRenderProjectionJournal.ProjectionId(second.Id)}",
snapshot.FirstMismatch);
Assert.Equal(1, snapshot.PackedInputMismatchCount);
}
private static RenderProjectionRecord Project(WorldEntity entity)
{
bool dynamic = entity.ServerGuid != 0;