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Field

fields/field·v1.5.1

IN:1 OUT:1

SUMMARY

Field builds a POPX field: a grid POP with one point per voxel carrying Weight, Color, Dist (the signed distance, negative inside), Gradient and Velocity. The field comes from analytic signed distance shapes (sphere, box, torus, tube, capsule, plane, parabola and line), placed by the Transform page or one per point of a Specification POP, whose point attributes override the shape parameters.

Combine Operation merges the shapes with union, intersection, difference or their smooth versions, and an optional input POP sets the field box from its bounds. Dist, Gradient and Velocity are optional (Velocity follows each shape's transform, or the shape changing as well), and the field feeds Combine Field, Field Render, Field Scatter, Field Falloff and the Flow and FLIP solvers, with optional 3D texture outputs.

PARAMETERS

PAGEField

Max Axis Resolution	Maxaxisres	Number of voxels along the longest axis. The other axes follow the box proportions.
[+]Field Resolution	Fieldres	The resulting field resolution (read-only).
[+]Field Size	Fieldsize	Size of the field box in world units. Read-only when a POP is connected, since the box follows that POP's bounds.
[+]Field Center	Fieldcenter	Center of the field box in world units. Read-only when a POP is connected, as it follows the bounds of that POP.
Display Field	Displayfield	Enable drawing the occupied voxels as points.
Display Bounds	Displaybounds	Display the field box.
Specification POP	Specpop	Reference to a POP where each point places a separate shape. Point attributes override the parameters.
[+]Combine Operation	Comboperand	Determines how the instances combine: Union, Intersection, Difference, or their smooth versions, where Smoothness blends the seam.
Smoothness	Smoothness	Blend distance of the smooth operations, in world units.
[+]Shape	Shape	Determines the signed distance shape of each instance.
[+]Color	Color	Voxel color used when the input has no Color attribute.
[+]Size	Size	Sets the size of the shape.
[+]Radius	Rad	Sets the radius of the shape along each axis.
Height	Height	The height of the tube.
Roundness	Roundness	Sets the roundness of the rounded shapes.
[+]Point A	Pointa	Sets the first end point of the shape.
[+]Point B	Pointb	Sets the second end point of the shape.
Exponent	Exponent	Sets the exponent on parabola fields.
[+]Strength	Strength	Sets the strength of the shape.
Transition Range	Transitionrange	Determines a transition range for weights.
Transition Align	Transitionalign	Shifts the transition in or out.
[+]Transition Type	Transitiontype	Determines a transition function for weights.
Weight Scale	Weightscale	Multiplies the Weight, the density of the field.
Multiply Color by Weight Scale	Multcolor	Whether to multiply Color by the Weight Scale.
Compute SDF	Computesdf	Enable writing Dist, the signed distance to the surface, negative inside.
Compute Gradient	Computegradient	Whether to output Gradient, the unit normal of the distance field.
Compute Velocity	Computevelocity	Write Velocity, in units per second, from how the fields moved since the previous frame.
[+]Velocity Mode	Velocitymode	Determines how Velocity is computed. Transform follows each field's transform. Transform + Shape also follows the shape changing and needs Compute SDF.
Velocity Scale	Velocityscale	Multiplies the output Velocity.
Reset Velocity	Resetvelocity	Clears the velocity history so the next frame outputs zero.
Output 3D Textures	Output3dtextures	Whether to output one 3D texture per field attribute.

PAGETransform

[+]Transform Order	Xord	Sets the transform order of the shape.
[+]Rotate Order	Rord	Sets the order of the rotations of the shape.
[+]Translate	T	Translate the shape in the three axes.
[+]Rotate	R	Rotate the shape around the X, Y and Z axes. Angles are given in degrees.
[+]Scale	S	Scale factor for each axis of the shape.
[+]Pivot	P	The pivot point for the rotate and scale of the shape.

PAGECommon

Free Extra GPU Memory

Freeextragpumem

Free memory that has accumulated when output memory has grown and shrunk.

INPUTS

Input 0 POP - Source

OUTPUTS

Output 0 POP - Field