injectObjectId

beta

SDF

ID Field

utility

injectObjectId

RayTK

v0.40

Assigns an arbitrary value to the objectId field of an SDF, which can later be extracted from rendered output.

This can be used to identify which object is shown at any given pixel in the output.

Parameters

Name	Description	Regular Handling	Read-Only Handling
Enable
Object Id		Runtime	Baked

Inputs

• SDF: (required)
  • Coordinate Types: float vec2 vec3 vec4
  • Context Types: Context MaterialContext CameraContext LightContext RayContext ParticleContext VertexContext PixelContext
  • Return Types: Sdf
• ID Field: (optional)
  • Coordinate Types: float vec2 vec3 vec4
  • Context Types: Context MaterialContext CameraContext LightContext RayContext ParticleContext VertexContext PixelContext
  • Return Types: float