VR Look-At Trigger
Updated: 12 May 2025
trigger effects based on where a VR camera is looking.
VR Look-At Trigger
Method #
This node allows you to create effects based on what the VR user is looking at. The target is a cuboid region specified by the scale and position.
When the user looks at the defined space, the Current Value parameter will increase (at a rate defined by Required Hit Duration).
All nodes connected to this node are treated as if flowing to the parent node, and inherits any transformation changes along the chain. When connected to a Extractor node modifier, you can use the Current Value / Current Value With Button to activate and control other nodes and effects.
Parameters
These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.
Parameter Details Position X
The objects position along the local x-axis.
Position Y
The objects position along the local y-axis.
Position Z
The objects position along the local z-axis.
Rotation Heading
The objects rotation around the local y-axis.
Rotation Pitch
The objects rotation around the local x-axis.
Rotation Bank
The objects rotation around the local z-axis.
Scale X
The objects scale along the local x-axis.
Scale Y
The objects scale along the local y-axis.
Scale Z
The objects scale along the local z-axis.
Control the inheritance of the transforms from the parent.
Parameter Details Position
Toggle inheritance of the Position from the parent.
Rotation
Toggle inheritance of the Rotation from the parent.
Scale
Toggle inheritance of the Scale from the parent.
World Position Only
Inherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties.
Inherit Time
Toggle inheritance of time from the parent.
These properties control the core behaviours of the node.
Parameter Details Current Value
Value moves from 0.0 to 1.0 as the VR user looks at the target. Speed is set by Required Hit Duration.
Current Value With Button
Value moves from 0.0 to 1.0 as the VR user looks at the target, but increases greatly when a button is pressed. Speed is set by Required Hit Duration With Button.
Required Hit Duration
The time it takes for the current value to move from 0.0 to 1.0, while the user is looking at the target.
Required Hit Duration With Button
The time it takes for the current value with button to move from 0.0 to 1.0, while the user is looking at the target.
Lookat Speed Multiplier
Modify how quickly the Lookat Speed increases on the Current Value With Button.
Check VR Controllers
Enable / Disable the Vr Controllers to be checked if pointing to target.
These properties control how the hit point is visualised, useful for debugging.
Parameter Details Show Hit Points
Enable/Disable Hit Point images.
Hit Point Size
Size of the Hit Point image.
Hit Point Alpha
Alpha of the Hit Point image.
Hit Point Colour
Tint the colour of the Hit Point image.
Hit Point Image
Select an image to be shown when the nodes is activated. Will be overwritten by input nodes.
Inputs
These properties control the 3D transforms of the node. Transforms will generally be inherited by child nodes, although they can be ignored through the Inherit Transform Channels attributes.
| Parameter | Details |
|---|---|
| Position X | The objects position along the local x-axis. |
| Position Y | The objects position along the local y-axis. |
| Position Z | The objects position along the local z-axis. |
| Rotation Heading | The objects rotation around the local y-axis. |
| Rotation Pitch | The objects rotation around the local x-axis. |
| Rotation Bank | The objects rotation around the local z-axis. |
| Scale X | The objects scale along the local x-axis. |
| Scale Y | The objects scale along the local y-axis. |
| Scale Z | The objects scale along the local z-axis. |
Control the inheritance of the transforms from the parent.
| Parameter | Details |
|---|---|
| Position | Toggle inheritance of the Position from the parent. |
| Rotation | Toggle inheritance of the Rotation from the parent. |
| Scale | Toggle inheritance of the Scale from the parent. |
| World Position Only | Inherit the world position from the parent only, rotation and scale will be ignored. Overrides above properties. |
| Inherit Time | Toggle inheritance of time from the parent. |
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Current Value | Value moves from 0.0 to 1.0 as the VR user looks at the target. Speed is set by Required Hit Duration. |
| Current Value With Button | Value moves from 0.0 to 1.0 as the VR user looks at the target, but increases greatly when a button is pressed. Speed is set by Required Hit Duration With Button. |
| Required Hit Duration | The time it takes for the current value to move from 0.0 to 1.0, while the user is looking at the target. |
| Required Hit Duration With Button | The time it takes for the current value with button to move from 0.0 to 1.0, while the user is looking at the target. |
| Lookat Speed Multiplier | Modify how quickly the Lookat Speed increases on the Current Value With Button. |
| Check VR Controllers | Enable / Disable the Vr Controllers to be checked if pointing to target. |
These properties control how the hit point is visualised, useful for debugging.
| Parameter | Details |
|---|---|
| Show Hit Points | Enable/Disable Hit Point images. |
| Hit Point Size | Size of the Hit Point image. |
| Hit Point Alpha | Alpha of the Hit Point image. |
| Hit Point Colour | Tint the colour of the Hit Point image. |
| Hit Point Image | Select an image to be shown when the nodes is activated. Will be overwritten by input nodes. |
| Name | Description | Typical Input |
|---|---|---|
| Hit Point Image | Add an image to appear when the node is triggered. | Video Loader |
| Transform Modifiers | Apply the transforms of another node to this node. | Null |
| Target Node | Modifiy the rotations of the node to always direct the z axis towards the input. | Null |
| Local Transform Override | Apply the transforms of another node to this node, relative to its parent. | Null |