Houdini 16.5 Nodes VOP nodes

Intersect 3D VOP node

Intersects a 3D image along the line specified by two points.

This operator intersects a 3D image along the line specified by two points. The ray will intersect the iso-surface of the texture at the density specified. If an intersection is found, hit is 1 and hitpos will contain the point position of the intersection.

Texture files will be searched for in the path specified by the HOUDINI_TEXTURE_PATH environment variable.

Parameters

3D Image

3D image file used for look-up.

Channel

Channel to be integrated.

Start Position

3D location in the image where to start integrating.

End Position

3D location in the image where to stop integrating.

Density

The density at which to intersect the iso-surface.

Filter Type

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

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 u and v directions.

See also

VOP nodes