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In depth learning on Scene Configuration can be found in this course in Motive Academy. |
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Overview
This article shows how to:
Make a Unity object grabbable in VR using the SDK
A simple example of using Grab Anchors
Make the Unity Object recognizable in a Storyflow script using a Motive Scene Object
Add a reference to the object in a Storyflow Catalog
Create a test Storyflow script which uses the Object Interaction → Grasp Resource
Run the test Storyflow script and verify that the Unity object configuration was done correctly
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Step 1
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: Unity SDK - VR Grabbable
In the Hierarchy, find the object you wish to make grabbable. We use the
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“brush” in this case. It can be any object
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Right click on the object. Select Motive -> Make Grabbable
In the Inspector, notice that three components have been added to the object
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A Rigidbody
A Mesh Collider
VR Grabbable script
Make the Mesh Collider = Convex
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Save the
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Scene and play it
Pick up the brush. Notice that the brush can be picked up from any point. Specific grab points can be defined in the VR Grabbable script
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Optional: Add a grab anchor to the handle. A grab anchor is a transform. You can use the buttons to define a grab anchor for either hand or you can create your own and assign it
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Optional: Options for release behavior, distance grabs and more can be configured in the VR Grabbable script component
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The object is now able to be picked up in VR. You can configure the specific behavior based on your use case
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Step 2
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: Unity SDK - Motive Scene Object
To be usable with Storyflow, add a Motive Scene Object script and give it a name.
Right click on the object. Select Motive -> Make Scene Object
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In the name field, type a name
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Remember this name. A
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Catalog item with the same name will need to be created in a Storyflow Catalog
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For this example, the name will be 'Brush'
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Save the
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Scene
At this point, everything that is needed has been configured in Unity
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Step 3
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: Storyflow - Named Object Catalog Item
In Storyflow, go to the Catalogs tab and find a Named Object catalog
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If one does not exist, create one
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Select the item and give it the same name that was given to the Motive Scene Object
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In this case, the name is Brush
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Save the
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Catalog
Step 4
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: Storyflow - Create a Test Script
Go to the Scenarios tab
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Script called Test Grasp - VR Grabbable
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Open the
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Add a Scene Object
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Click the '+' button on the Object field
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Select the object you added to the
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Catalog
The example used the name
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Brush
Add a
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Drag in the Grasp Resource and select the object ('Brush') from the World Object drop down menu
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Click the Event Link Shortcut (the blue "+" button) and select
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“complete”
In the newly created
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Frame, add a Playable Content -> Notification
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Enter some text in the Message field
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Optional: Give the Notification a sound or an image if you'd like
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Save the
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Script. When this
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Script is run in the VR
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Scene, it will wait until the object (Brush) is picked up
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When it is, the Notification will display
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Click the Project tab
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Assign the Test Grasp - VR Grabbable
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Script to a
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Scenario. If no
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Scenario exists, create one
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Save the
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Scenario
Step 5
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: Unity - Run the Test Script
In Unity, play the
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Scene and select the
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Scenario
Pick up the object (Brush).
Notice that the
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Notification shows once it is picked up
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At this point, the Unity object is configured to be grabbable in VR, made recognizable in Storyflow, used in a script Script and triggered a notification Notification after the appropriate action was taken.