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Setting the point of view for teleporters: setting the rotation orientation

 

Alignment from scene to scene

When asking an end-user to change their location from place to another via teleporting to a new scene, it's best to carefully align the orientations of the departure and destination images.

Consider this example:

In a primary scene the default starting view shows the front of a building. While the end-user can rotate their head to see to the left or right of the building or even away from the building, the initial view is of the front of the building. As part of your storytelling you want to bring the end-user inside the building. To do this you create a second scene whose image is rendered from within the entryway of the building. In the web portal you would place a teleporter for the second scene right on top of the doorway of the building within the primary scene. Once in the mobile VR app, end-users would activate this teleporter and their viewpoint would shift to within the building. The tricky part is that it's best if the destination viewpoint, the initial view the end-user sees upon teleporting to the interior scene, is displayed as if the end-user walked forward, keeping their gaze facing in the direction of travel.

The Visual Vocal web portal, lets you fine tune these starting view rotations when placing teleporters. It is important that you adjust these rotations so that there is spatial consistency when navigating from scene to scene. 

The general steps are:

  1. From the scenes view, click on "Place" or "Move" next to any teleporter.
  2. In the list of teleporters, click on "Set Point of View" for the teleporter you want to adjust.
  3. Drag the "eyeball" icon horizontally such that the eye is over the portion of the panorama that you want to be centered in view when the end-user arrives at that scene.
  4. When you are satisfied with the adjustment, either click on the "X" close button in the upper right hand corner or on the "Save Placement" button.
  5. Test your creation in VR on your phone.

We will illustrate these steps with an example that uses navigation through an office environment.

  • Scene 5 ("S5") shows the interior of a break room with a various vending machines. A doorway leads into the lobby from the breakroom. The teleporter associated with Scene 1 ("S1") corresponds to the panorama rendered in the lobby.

  1. Open Scene 5 by clicking on its primary image:
  2. From the scenes view, click on "Place" or "Move" next to any teleporter. This will then open up the teleporter placement "lightbox":
  3. Select a teleporter for which you want to fine-tune the point-of-view upon arrival. In this case, "S1" has been selected.
  4. Place the teleporter (if it is not already placed) by clicking in the larger panorama, here labeled "From Scene 5".
    • In the larger "From" panorama preview you will notice that the lobby is off to the left. That is where the teleporter that takes end-users to the lobby should be placed.
    • In the smaller "destination" preview panorama, you will notice that the wall of windows in the lobby is towards the right side of the panorama image. If no adjustments were made to the teleporter rotation, upon arrival in Scene 1, the end-user might be disoriented. Ideally, the wall of windows would be at the center of view as that corresponds with the what is generally under the teleporter for Scene 1.
  5. In the list of teleporters, click on "Set Point of View" within the "S1 - Lobby" entry.
  6. The two preview windows shift such that they are now of equal size. The left preview window still corresponds to the "From" scene and the right preview window (now of equal size) corresponds to the "To" scene.
  7. Drag the "eyeball" icon horizontally to the left so that it is over the wall of windows.
  8. When you are satisfied with the adjustment, either click on the "X" close button in the upper right hand corner or on the "Save Placement" button. Both do the same thing and will return you to the screen that lets you place all of the available teleporters.
  9. After adjusting all the desired teleporters, click on the "X" close button to return to the overall scenes editor.

It's best that you carefully tune the teleporter rotation to reinforce the implied direction of travel. This is equally true of captured photographic imagery. If you take a panoramic image with a smartphone app, make sure you align your picture taking to also reinforce a realistic travel motion. Admittedly, this process does take some iteration and fine tuning during the initial image generation.

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