Merge pull request #587 from alicevision/fix/viewer3D_alembic

[ui] Viewer3D: fix Alembic visibility issues

Author: fabiencastan

meshroom/ui/qml/Viewer3D/AlembicLoader.qml

@@ -11,6 +11,7 @@ import Qt3D.Extras 2.1
 AlembicEntity {
     id: root
 
+    property bool cameraPickingEnabled: true
     // filter out non-reconstructed cameras
     skipHidden: true
 
@@ -52,9 +53,13 @@ AlembicEntity {
                 },
                 ObjectPicker {
                     id: cameraPicker
-                    enabled: root.enabled
-                    onClicked: _reconstruction.selectedViewId = camSelector.viewId
-                }
+                    onPressed: pick.accepted = cameraPickingEnabled
+                    onReleased: _reconstruction.selectedViewId = camSelector.viewId
+                },
+                // Qt 5.13: binding cameraPicker.enabled to cameraPickerEnabled
+                //          causes rendering issues when entity gets disabled.
+                //          Use a scale to 0 to disable picking.
+                Transform { scale: cameraPickingEnabled ? 1 : 0 }
             ]
         }
     }

meshroom/ui/qml/Viewer3D/MediaLibrary.qml

@@ -275,7 +275,7 @@ Entity {
 
             components: [
                 ObjectPicker {
-                    enabled: parent.enabled && pickingEnabled
+                    enabled: mediaLoader.enabled && pickingEnabled
                     hoverEnabled: false
                     onPressed: root.pressed(pick)
                 }

meshroom/ui/qml/Viewer3D/MediaLoader.qml

@@ -80,14 +80,13 @@ import Utils 1.0
         id: abcLoaderEntityComponent
         MediaLoaderEntity {
             id: abcLoaderEntity
-            enabled: root.enabled
             Component.onCompleted: {
 
                 var obj = Viewer3DSettings.abcLoaderComp.createObject(abcLoaderEntity, {
                                                'source': source,
                                                'pointSize': Qt.binding(function() { return 0.01 * Viewer3DSettings.pointSize }),
                                                'locatorScale': Qt.binding(function() { return Viewer3DSettings.cameraScale }),
-                                               'enabled': Qt.binding(function() { return root.enabled })
+                                               'cameraPickingEnabled': Qt.binding(function() { return root.enabled })
                                            });
 
                 obj.statusChanged.connect(function() {