[10.x.x][VFX] 10.3 backports

TestProjects/VisualEffectGraph_HDRP/Assets/AllTests/Editor/Tests/CopyPasteTest.vfx

@@ -603,6 +603,7 @@ MonoBehaviour:
   blendMode: 1
   useAlphaClipping: 0
   generateMotionVector: 0
+  excludeFromTAA: 0
   m_SubOutputs:
   - {fileID: 8926484042661614564}
   cullMode: 0

TestProjects/VisualEffectGraph_HDRP/Assets/AllTests/Editor/Tests/VFXContextTests.cs

@@ -194,6 +194,24 @@ public void MultiLinkSpawnerSpawnerAfterSpawnerInit()
             Assert.AreEqual(2, from.outputContexts.Count());
         }
 
+
+        [Test] //see fogbugz 1269756
+        public void Link_Fail_From_Event_To_OutputEvent()
+        {
+            var from = ScriptableObject.CreateInstance<VFXBasicEvent>();
+            var to = ScriptableObject.CreateInstance<VFXOutputEvent>();
+            Assert.IsFalse(VFXContext.CanLink(from, to));
+        }
+
+        [Test]
+        public void Link_Fail_From_Event_To_Initialize()
+        {
+            //For now, we can't use direct link from event to initialize context.
+            var from = ScriptableObject.CreateInstance<VFXBasicEvent>();
+            var to = ScriptableObject.CreateInstance<VFXBasicInitialize>();
+            Assert.IsFalse(VFXContext.CanLink(from, to));
+        }
+
         [Test]
         public void Link_Fail()
         {

TestProjects/VisualEffectGraph_HDRP/Assets/AllTests/Editor/Tests/VFXControllerTests.cs

@@ -940,6 +940,45 @@ public void ConvertToSubgraph()
 
             window.graphView.controller = null;
         }
+
+        [Test]
+        public void Subgraph_Event_Link_To_Spawn()
+        {
+            VFXViewWindow window = VFXViewWindow.GetWindow<VFXViewWindow>();
+            window.LoadAsset(AssetDatabase.LoadAssetAtPath<VisualEffectAsset>(testAssetName), null);
+
+            //Create Spawner in subgraph
+            {
+                var spawner = ScriptableObject.CreateInstance<VFXBasicSpawner>();
+                m_ViewController.graph.AddChild(spawner);
+                m_ViewController.LightApplyChanges();
+
+                var controller = window.graphView.Query<VFXContextUI>().ToList().Select(t => t.controller).Cast<Controller>();
+                Assert.AreEqual(1, controller.Count());
+                VFXConvertSubgraph.ConvertToSubgraphContext(window.graphView, controller, Rect.zero, testSubgraphSubAssetName);
+            }
+
+            var subGraphController = m_ViewController.allChildren.OfType<VFXContextController>().FirstOrDefault(o => o.model is VFXSubgraphContext);
+            Assert.IsNotNull(subGraphController);
+
+            //Create Event Context & Link the two input flow
+            var subGraphContext = subGraphController.model;
+            var eventContext = ScriptableObject.CreateInstance<VFXBasicEvent>();
+
+            Assert.IsTrue(VFXContext.CanLink(eventContext, subGraphContext, 0, 0));
+            Assert.IsTrue(VFXContext.CanLink(eventContext, subGraphContext, 0, 1));
+
+            eventContext.LinkTo(subGraphContext, 0, 0);
+            eventContext.LinkTo(subGraphContext, 0, 1);
+
+            var flow = eventContext.outputFlowSlot.First().link;
+            Assert.AreEqual(2, flow.Count());
+            Assert.IsTrue(flow.All(o => o.context == subGraphContext));
+            Assert.IsTrue(flow.Any(o => o.slotIndex == 0));
+            Assert.IsTrue(flow.Any(o => o.slotIndex == 1));
+
+            window.graphView.controller = null;
+        }
     }
 }
 #endif