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Support scenes for VR in Godot
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README.md

Godot VR Common

This repository contains a number of support files and support scenes that can be used together with the various VR interfaces for the Godot game engine.

How to Use

Preventing hickups

As many of the functions in this module will hide objects that are later shown as the user performs actions, the user will experience a hickup as Godot compiles the shader used to draw the object on screen.

To combat this you will find a scene in this module called misc/VR_Common_Shader_Cache.tscn. Add this scene as a child node to your ARVRCamera. This will trigger the required shaders being compiled the first time your main scene loads.

Teleportation

  • if your scene doesn't have a floor yet:
    • add a StaticBody node to the scene root
    • add a MeshInstance as a child of the StaticBody and set its Mesh to New PlaneMesh
    • add a CollisionShape a child of the StaticBody and set its Shape to New PlaneShape
  • instance child scene from the ovr_first_person scene (produces OVRFirstPerson node)
  • right click OVRFirstPerson node in the Scene tab and select Editable Children to expand the imported scene
  • right click Left_Hand in the Scene tab and instance child scene Function_Teleport
  • right click Right_Hand in the Scene tab and instance child scene Function_Teleport
  • left click each Function_Teleport child in the Scene tab and find its Script Variables in the Inspector - assign Origin to OVRFirstPerson which is an instance of ARVROrigin
  • start the scene and pull the trigger (button 15) to aim the teleport arc (release to teleport)

NOTE: Newer versions of Godot will warn you with a yellow triangle that "This node has no children shapes so it can't interact with the space. Consider adding CollisionShape or CollisionPolygon children nodes to define it's shape." If you add a CollisionShape as suggested, that will interfere with the script and cause you to see a capsule rendered directly in front of you with a red indicator (i.e. teleport is blocked by the child collision)

Direct Movement

  • instance child scene from the ovr_first_person scene (produces OVRFirstPerson node)
  • left click Function_Direct_movement in the Scene tab and find its Script Variables in the Inspector: assign Origin to OVRFirstPerson which is an instance of ARVROrigin and Camera to ARVRCamera
  • right click OVRFirstPerson node in the Scene tab and select Editable Children to expand the imported scene
  • right click Left_Hand in the Scene tab and instance child scene Function_Direct_movement
  • right click Right_Hand in the Scene tab and instance child scene Function_Direct_movement
  • left click each Function_Direct_movement child in the Scene tab and find its Script Variables in the Inspector - assign Origin to OVRFirstPerson which is an instance of ARVROrigin and Camera to ARVRCamera.
  • start the scene and move the joystick/trackpad forward/back to slide forward/back and left/right to rotate

Pointer

  • if your scene doesn't have objects with a CollisionShape/CollisionPolygon attached:
    • add a StaticBody node to the scene root
    • add a MeshInstance as a child of the StaticBody and set its Mesh to New SpheneMesh
    • add a CollisionShape a child of the StaticBody and set its Shape to New SphereShape
  • to each node that you want to enable pointer interaction (assuming it has a CollisionShape child), add a script that contains a _on_pointer_pressed function and a _on_pointer_released function:
func _on_pointer_pressed(collisionVector3):
    print(str("A pointer pressed me at ", collisionVector3))
    # your awesome effects here

func _on_pointer_released(collisionVector3):
    print(str("A pointer was released at ", collisionVector3))
    # your awesome effects here
  • instance child scene from the ovr_first_person scene (produces OVRFirstPerson node)
  • left click Function_Pointer in the Scene tab and find its Script Variables in the Inspector: assign Origin to OVRFirstPerson which is an instance of ARVROrigin and Camera to ARVRCamera
  • right click OVRFirstPerson node in the Scene tab and select Editable Children to expand the imported scene
  • right click Left_Hand in the Scene tab and instance child scene Function_pointer
  • right click Right_Hand in the Scene tab and instance child scene Function_pointer
  • start the scene, point at an object and pull the trigger (button 15) to call the pressed/released function on each object (it should print to the console output).

NOTE: If you want to use Teleport and Pointer together you probably need to edit one or both of their scripts since both are mapped to button 15 (the primary trigger for oculus touch). Double click the script icon next to each and search for is_button_pressed to make changes.

Licensing

This repository is licensed under the MIT license.

About this repository

This repository was created by and is maintained by Bastiaan Olij a.k.a. Mux213

You can follow me on twitter for regular updates here: https://twitter.com/mux213

Videos about my work with Godot including tutorials on working with VR in Godot can by found on my youtube page: https://www.youtube.com/channel/UCrbLJYzJjDf2p-vJC011lYw

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