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fix: preserve camera submission order on sort ties

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This commit is contained in:
ssdfasd
2026-04-02 00:09:16 +08:00
parent d7e9e978d0
commit fd39808c91
2 changed files with 61 additions and 2 deletions
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4
engine/src/Rendering/SceneRenderer.cpp
View File

@@ -21,7 +21,7 @@ bool CompareCameraRenderRequest(const CameraRenderRequest& lhs, const CameraRend
return lhs.cameraDepth < rhs.cameraDepth;
}
return lhs.camera < rhs.camera;
return false;
}
bool IsUsableCamera(const Components::CameraComponent* camera) {
@@ -125,7 +125,7 @@ std::vector<CameraRenderRequest> SceneRenderer::BuildRenderRequests(
return lhs->GetDepth() < rhs->GetDepth();
}
return lhs < rhs;
return false;
});
size_t renderedBaseCameraCount = 0;

59
tests/Rendering/unit/test_camera_scene_renderer.cpp
View File

@@ -509,6 +509,30 @@ TEST(SceneRenderer_Test, RendersBaseCamerasBeforeOverlayCamerasAndResolvesAutoCl
EXPECT_EQ(requests[2].clearFlags, RenderClearFlags::Depth);
}
TEST(SceneRenderer_Test, PreservesSceneTraversalOrderForEqualPriorityCameras) {
Scene scene("SceneRendererStableSceneOrder");
GameObject* firstCameraObject = scene.CreateGameObject("FirstCamera");
auto* firstCamera = firstCameraObject->AddComponent<CameraComponent>();
firstCamera->SetPrimary(false);
firstCamera->SetDepth(2.0f);
firstCamera->SetStackType(CameraStackType::Base);
GameObject* secondCameraObject = scene.CreateGameObject("SecondCamera");
auto* secondCamera = secondCameraObject->AddComponent<CameraComponent>();
secondCamera->SetPrimary(false);
secondCamera->SetDepth(2.0f);
secondCamera->SetStackType(CameraStackType::Base);
SceneRenderer renderer;
const std::vector<CameraRenderRequest> requests =
renderer.BuildRenderRequests(scene, nullptr, CreateValidContext(), RenderSurface(640, 360));
ASSERT_EQ(requests.size(), 2u);
EXPECT_EQ(requests[0].camera, firstCamera);
EXPECT_EQ(requests[1].camera, secondCamera);
}
TEST(SceneRenderer_Test, FallsBackToColorClearForFirstOverlayCameraWhenNoBaseCameraExists) {
Scene scene("SceneRendererOverlayOnlyScene");
@@ -761,3 +785,38 @@ TEST(SceneRenderer_Test, SortsManualCameraRequestsByDepthBeforeRendering) {
EXPECT_EQ(state->renderedCameras[1], farCamera);
EXPECT_EQ(state->renderedClearFlags[1], RenderClearFlags::None);
}
TEST(SceneRenderer_Test, PreservesManualSubmissionOrderForEqualPriorityRequests) {
Scene scene("SceneRendererManualSubmissionOrder");
GameObject* firstCameraObject = scene.CreateGameObject("FirstCamera");
auto* firstCamera = firstCameraObject->AddComponent<CameraComponent>();
firstCamera->SetPrimary(false);
firstCamera->SetDepth(2.0f);
GameObject* secondCameraObject = scene.CreateGameObject("SecondCamera");
auto* secondCamera = secondCameraObject->AddComponent<CameraComponent>();
secondCamera->SetPrimary(false);
secondCamera->SetDepth(2.0f);
auto state = std::make_shared<MockPipelineState>();
SceneRenderer renderer(std::make_unique<MockPipeline>(state));
CameraRenderRequest firstRequest;
firstRequest.scene = &scene;
firstRequest.camera = firstCamera;
firstRequest.context = CreateValidContext();
firstRequest.surface = RenderSurface(800, 600);
firstRequest.cameraDepth = 2.0f;
firstRequest.cameraStackOrder = 0;
firstRequest.clearFlags = RenderClearFlags::All;
CameraRenderRequest secondRequest = firstRequest;
secondRequest.camera = secondCamera;
const std::vector<CameraRenderRequest> requests = { secondRequest, firstRequest };
ASSERT_TRUE(renderer.Render(requests));
ASSERT_EQ(state->renderedCameras.size(), 2u);
EXPECT_EQ(state->renderedCameras[0], secondCamera);
EXPECT_EQ(state->renderedCameras[1], firstCamera);
}