axisLight

axisLight

Position Field
Color Field
Attenuation Field
light
axisLight
RayTK
v0.41

Light that emits from along an axis, similar to an infinitely long tube light.

Parameters

Name Description Regular Handling Read-Only Handling
Axis

Axis that the limit emits from.

 Runtime Semi-Baked
  • X:
  • Y:
  • Z:
Position

Position of the light. One axis of this won’t be used since the light is infinite along one axis.

 Runtime Baked
Rotate

Rotates the light source.

 Runtime Baked
Intensity

Brightness that is applied to the Color.

 Runtime Baked
Color

Color of the light.

 Runtime Baked
Attenuated

Whether to limit the light range.

 Runtime Semi-Baked
Attenuation Start

The distance at which the light starts to dim.

 Runtime Baked
Attenuation End

The distance at which the light is fully dimmed.

 Runtime Baked
Enable Shadow

Whether the light should produce shadows.

 Runtime Semi-Baked

Inputs

  • Position Field: (optional) Field offsets the position of the light. The coordinates that this field gets are the spot on the surface that the light is being calculated for.
    • Coordinate Types: vec3
    • Context Types: LightContext
    • Return Types: vec4
  • Color Field: (optional) Field controls the color of the light based on the position of surface hits where it is being applied. The resulting color is multiplied by the `Color` parameter and `Intensity`.
    • Coordinate Types: vec3
    • Context Types: LightContext
    • Return Types: float vec4
    • Supports Variables: lightdir
    • Supports Variables From Inputs: positionField
  • Attenuation Field: (optional) Field/function that controls the slope and coloration of the attenuation rolloff is shaped. It can be used to make the light shift from one color to another, or to control the sharpness of the rolloff.
    • Coordinate Types: float
    • Context Types: LightContext
    • Return Types: float vec4
    • Supports Variables: lightdir
    • Supports Variables From Inputs: positionField colorField

Variables

  • lightdir: