Operators¶

Generator¶

Operator	Description
Constant T3D	A volume of one colour, or the input tinted by it.
Sphere T3D	A sphere, filled, with a soft edge.
Box T3D	A box with optionally rounded edges, filled, with a soft edge.
Torus T3D	A torus (ring), filled, with a soft edge.
Tube T3D	A tube or truncated cone along X, Y or Z, filled, with a soft edge.
Noise T3D	TouchDesigner's Noise TOP evaluated at every voxel of a 3D texture.
Fractal T3D	A Julia set, Mandelbulb or iterated fold, as a filled volume.
Sdf T3D	A signed distance function written in GLSL, as a filled shape or a distance field.
Metaball T3D	Spheres from a CHOP, TOP or POP, melted into one smooth surface.
TOP To T3D	Builds a volume from a 2D image: a slab, a height-map solid, or a history of frames.
Geo To T3D	Voxelises SOP or POP geometry: occupancy, filled solids, or a signed distance field.
Point Cloud T3D	Splats points from TOPs or a POP into a density volume, with colour.

Operator	Description
Math T3D	Per-voxel arithmetic: channel operations, multiply-add, alpha operations and range mapping.
Transform T3D	Translates, rotates and scales a volume, optionally weighted per voxel.
Blur T3D	A separable Catmull-Rom blur along X, Y and Z.
Limit T3D	Clamps, wraps or folds values into a range, and quantises values or positions.
Slope T3D	The gradient of a volume: the direction and steepness of change at each voxel.
Edge T3D	The strength of change at each voxel, as an edge matte.
Threshold T3D	A matte from comparing each voxel against a threshold.
Fit T3D	Fits a volume into another resolution, keeping its proportions, then transforms it.
Function T3D	Applies a mathematical function to every channel of every voxel.
Analyze T3D	Reduces a volume to one value: average, minimum, maximum, count or sum.
Crop T3D	Cuts a box out of a volume, in voxels or fractions, as the Crop TOP does in 2D.
Optical Flow T3D	Estimates motion between successive frames of an animated volume.
Distance T3D	The distance from every voxel to the nearest seed voxel (jump flooding).

Operator	Description
Add T3D	Adds two volumes, channel by channel.
Subtract T3D	Subtracts the second volume from the first, channel by channel.
Multiply T3D	Multiplies two volumes, channel by channel.
Composite T3D	Combines any number of volumes with one of the Composite TOP's operations.
Difference T3D	The absolute difference of two volumes, channel by channel.
Cross T3D	Blends between two volumes.
Remap T3D	Samples a volume at positions read from another: 3D warping.
Matte T3D	Blends two volumes by a third one used as a mask.
Reorder T3D	Builds a volume from channels of up to four inputs.
Displace T3D	Moves the voxels of one volume by the values of another.
Lookup T3D	Remaps values through a colour table: a ramp, a 3D texture or a CHOP.

Operator	Description
Surface T3D	Renders the isosurface of a volume as a lit, optionally refracting, solid.
Volume T3D	Ray-marched rendering of a density volume, lit by the scene's lights, inside a Render TOP.
Voltrace T3D	Path-traced rendering of a density volume, with area lights, an environment and depth of field.

Operator	Description
Fluid T3D	Incompressible smoke and fluid simulation on a staggered grid, with a multigrid pressure solve.
Advect T3D	Moves particles through a velocity volume.
Sprinkle T3D	Scatters points through a volume, distributed by its density.
Null TOP	TouchDesigner's Null TOP, registered in the family.
In TOP	TouchDesigner's In TOP, registered in the family.
Out TOP	TouchDesigner's Out TOP, registered in the family.
Feedback TOP	TouchDesigner's Feedback TOP, registered in the family.
Select TOP	TouchDesigner's Select TOP, registered in the family.
Cache TOP	TouchDesigner's Cache TOP, registered in the family.
To TOP T3D	Turns a volume into a 2D texture: an atlas of all slices, or one slice.