Fix rendering artifacts in tasks that only allow flight mode

CHANGELOG.md

@@ -23,6 +23,7 @@ For upgrade instructions, please check the [migration guide](MIGRATIONS.md).
 - Fixed an error that occured when changing the URL hash. [#3746](https://github.com/scalableminds/webknossos/pull/3746)
 - Fixed a bug in the timeline chart rendering. The start and end time of the timeline chart now match the selected time range. [#3772](https://github.com/scalableminds/webknossos/pull/3772)
 - The modals for a new task description and recommended task settings are no longer shown in read-only tracings. [#3724](https://github.com/scalableminds/webknossos/pull/3724)
+- Fixed a rendering bug when opening a task that only allowed flight/oblique mode tracing. [#3783](https://github.com/scalableminds/webknossos/pull/3783)
 - Fixed a bug where some NMLs caused the webKnossos tab to freeze during NML upload. [#3758](https://github.com/scalableminds/webknossos/pull/3758)
 
 

frontend/javascripts/oxalis/controller/scene_controller.js

@@ -252,6 +252,9 @@ class SceneController {
     for (const plane of _.values(this.planes)) {
       plane.getMeshes().forEach(mesh => this.rootNode.add(mesh));
     }
+
+    // Hide all objects at first, they will be made visible later if needed
+    this.stopPlaneMode();
   }
 
   buildTaskingBoundingBox(taskBoundingBox: ?BoundingBoxType): void {

frontend/javascripts/oxalis/geometries/cube.js

@@ -176,6 +176,10 @@ class Cube {
 
   setVisibility(visible: boolean) {
     this.visible = visible;
+    this.cube.visible = visible;
+    for (const planeId of OrthoViewValuesWithoutTDView) {
+      this.crossSections[planeId].visible = visible;
+    }
   }
 }