Omni Light
Updated: 4 Nov 2024
Add an Omni Light
Omni Light
Method #
Adds an Omni Light node into the scene, which casts light in all directions around it.
All nodes connected to this node are treated as if flowing to the parent node, and inherits any transformation changes along the chain.
Parameters
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 Colour
The colour of the light.
Brightness
How bright the light is.
Scattering Intensity
How much the light is scattered by the light, creating a simple fog around it.
Falloff Mode
Change how the light falloff is calculated.
- Inner / Outer Radius (Legacy) : light falloff is calculated between the inner and outer radii.
- Inv-Squared Distance (Physical) : the light falloff is calculated based on a physically accurate system.
Attenuation Distance
Inner distance within which the light remains at full strength
Falloff Power
Change how strong the falloff for the light is between the Inner Attenuation Distance and the Attenuation Distance.
Apply Specular
Enable/disable specular lighting.
Apply Diffuse
Enable/disable diffuse lighting.
IES Profile
IES light profiles are published lighting profiles from manufacturers that show the lighting energy and patterns produced by their lighting systems. Notch is able to use these profiles to accurately replicate real-world lighting in its environments. A good resource site for these profiles can be found here.
Show Light Cone
Show a cone in the scene to represent the lights current position and rotation.
Parameter Details Casts Shadows
Toggle whether baked shadows are applied to the objects lit by the light node.
Shadow Softness
Toggle whether baked shadows are applied to the objects lit by the light node.
Z Bias
Toggle whether baked shadows are applied to the objects lit by the light node.
The properties control the time at which the node is active. See Timeline for editing time segments.
Parameter Details Duration
Control the duration of the node’s time segment.
- Composition Duration : Use the length of the composition for the node’s time segment duration.
- Custom : Set a custom duration for the node’s time segment.
Node Time
The custom start and end time for the node.
Duration (Timecode)
The length of the node’s time segment (in time).
Duration (Frames)
The length of the node’s time segment (in frames).
Time Segment Enabled
Set whether the node’s time segment is enabled or not in the Timeline.
Inputs
| 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 |
|---|---|
| Colour | The colour of the light. |
| Brightness | How bright the light is. |
| Scattering Intensity | How much the light is scattered by the light, creating a simple fog around it. |
| Falloff Mode |
Change how the light falloff is calculated.
|
| Attenuation Distance | Inner distance within which the light remains at full strength |
| Falloff Power | Change how strong the falloff for the light is between the Inner Attenuation Distance and the Attenuation Distance. |
| Apply Specular | Enable/disable specular lighting. |
| Apply Diffuse | Enable/disable diffuse lighting. |
| IES Profile | IES light profiles are published lighting profiles from manufacturers that show the lighting energy and patterns produced by their lighting systems. Notch is able to use these profiles to accurately replicate real-world lighting in its environments. A good resource site for these profiles can be found here. |
| Show Light Cone | Show a cone in the scene to represent the lights current position and rotation. |
| Parameter | Details |
|---|---|
| Casts Shadows | Toggle whether baked shadows are applied to the objects lit by the light node. |
| Shadow Softness | Toggle whether baked shadows are applied to the objects lit by the light node. |
| Z Bias | Toggle whether baked shadows are applied to the objects lit by the light node. |
The properties control the time at which the node is active. See Timeline for editing time segments.
| Parameter | Details |
|---|---|
| Duration |
Control the duration of the node’s time segment.
|
| Node Time | The custom start and end time for the node. |
| Duration (Timecode) | The length of the node’s time segment (in time). |
| Duration (Frames) | The length of the node’s time segment (in frames). |
| Time Segment Enabled | Set whether the node’s time segment is enabled or not in the Timeline. |
| Name | Description | Typical Input |
|---|---|---|
| Projection Image | Deprecated feature. Projection images should not be used with omni lights. | Video Loader |
| Affected Nodes | Choose which nodes are affected by the light node. By default, all are affected. | 3D Object |
| Excluded Nodes | Choose which nodes are excluded from the light node. By default, none are ecluded. | 3D Object |
| Texture Projection Node | Controls the direction the image is projected from, independant of the light. Only functions if an image is being projected from the light. | Null |
| Multi-Source Controller | Deprecated feature. | |
| 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 |