Houdini 17.0 Nodes VOP nodes

Filter Step VOP node

Computes the anti-aliased weight of the step function.

This operator computes the anti-aliased weight of the step function. The step function returns 0 if the test value is less than the edge value, and 1 if the test value is greater than the edge value. Filterstep, on the other hand, returns a fraction representing the filtered area under the step function.

Parameters

Edge

Edge value.

Test Value

Test value.

Filter Type

Type of anti-aliasing filter to be used for evaluation The options are the following.

Box

(string value box)

Gaussian

(string value gauss)

Bartlett/Triangular

(string value bartlett)

Sinc Sharpening

(string value sinc)

Hanning

(string value hanning)

Blackman

(string value blackman)

Catmull-Rom

(string value catrom)

Mitchell

(string value mitchell)

Point Sampling

(string value point)

Filter Width

Filter width in both s and t directions.

See also

VOP nodes