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Assets/Oculus/VR/Scripts/BuildingBlocks/PassthroughProjectionSurfaceBuildingBlock.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using System;
+using UnityEngine;
+
+namespace Meta.XR.BuildingBlocks
+{
+    public class PassthroughProjectionSurfaceBuildingBlock : MonoBehaviour
+    {
+        public MeshFilter projectionObject;
+
+        // Start is called before the first frame update
+        private void Start()
+        {
+            var ptLayers = FindObjectsOfType<OVRPassthroughLayer>();
+            var foundLayer = false;
+
+            foreach (var ptLayer in ptLayers)
+            {
+                if (!ptLayer.GetComponent<BuildingBlock>())
+                {
+                    continue;
+                }
+
+                foundLayer = true;
+                ptLayer.AddSurfaceGeometry(projectionObject.gameObject, true);
+            }
+
+            if (foundLayer)
+            {
+                // The MeshRenderer component renders the quad as a blue outline
+                // we only use this when Passthrough isn't visible
+                var quadOutline = projectionObject.GetComponent<MeshRenderer>();
+                quadOutline.enabled = false;
+            }
+            else
+            {
+                throw new InvalidOperationException("A BB with the passthrough overlay layer was not found");
+            }
+        }
+    }
+}