![almostIdentityFn](/raytk/assets/images/reference/operators/function/almostIdentityFn_thumb.png)
almostIdentityFn
function
almostIdentityFn
RayTK
v0.42
A mapping function that can change a value only when it’s zero or very close to it, where it replaces the value with a small constant.
Then, rather than doing a conditional branch which introduces a discontinuity, you can smoothly blend your value with your Threshold.
This is based on Inigo Quilez’s article.
Parameters
Name | Description | Regular Handling | Read-Only Handling |
---|---|---|---|
Contexttype | |||
Threshold | The value above which things will be unchanged. | Runtime | Baked |
Base Value | The constant value to use when the input is zero. | Runtime | Baked |
Inputs
-
Threshold Field
: (optional)- Coordinate Types:
float
- Context Types:
Context
MaterialContext
CameraContext
LightContext
RayContext
ParticleContext
VertexContext
PixelContext
- Return Types:
float
- Coordinate Types:
-
Base Value Field
: (optional)- Coordinate Types:
float
- Context Types:
Context
MaterialContext
CameraContext
LightContext
RayContext
ParticleContext
VertexContext
PixelContext
- Return Types:
float
- Coordinate Types: