Spot Light

Updated: 4 Nov 2024

Add a Spot Light

Method #

Add a Spot Light node into the scene.

Attach the Target Node input to any object, to have the light track that object.

All nodes connected to this node are treated as if flowing to the parent node, and inherits any transformation changes along the chain.

Transform

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 x-axis.
Scale Z	The objects scale along the local x-axis.

Parent Transform

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.

Attributes

These properties control the core behaviours of the node.

Parameter	Details
Colour	The colour of the light.
Light Cone Angle	Change the size of the area the light covers.
Light Inner Cone Angle	Change the inner angle of the lights focus.
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	Maximum distance the light reaches.
Falloff Power	Change how strong the falloff for the light is between the Inner Attenuation Distance and the Attenuation Distance.
Penumbra Falloff Power	How quickly the edges of the spotlight falloff.
Apply Specular	Enable/Disable specular lighting.
Apply Diffuse	Enable/disable diffuse lighting.
Projection Image	Select an image to be projected from the light.
Projection Map Amount	How much the image affects the projection.
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.

Shadows

Parameter	Details
Casts Shadows	Toggle whether baked shadows are applied to the objects lit by the light node.
Shadow Softness	Change how much softness is applied to the shadow edges.
Z Bias	Increasing Z bias will improve the accuracy of grounding objects to their shadows.

Name	Description	Typical Input
Projection Image	Add in an image to be projected by the light. Useful for adding gobos to lights, or making a simple projector light. Only works when the Light Type is set to Spot.	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