Pangolin CHOP

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The Pangolin CHOP interfaces with Pangolin's Beyond. Beyond is a professional laser and multimedia show control application. When Beyond is running, the Pangolin CHOP will send laser image frames to it. The image frames are created from either a SOP input or CHOP input.

TouchDesigner Non-commercial will only work with the demo version of Beyond. TouchDesigner Commercial or Pro is required to interface with licensed versions of Beyond.

See also: Laser CHOP.


Parameters - Pangolin Page

Active active - When disabled, the CHOP will no longer send to Beyond. The corresponding image in Beyond will also be cleared.

Source source - - Select the source operator.

  • SOP sop - Use a SOP as the source. Apart from position attributes, the SOP's point color attributes are used to determine the color output.
  • CHOP chop - Use a CHOP as the source. Input channels are determined by name: x, y, z, r, g, b, id. Only the x, and y channels are required. Every sample will be interpreted as a point to be drawn. Points can be grouped together into a single shape using the id channel.

SOP sop - Path to the SOP.

CHOP chop - Path to the CHOP. The input CHOP must have x, y channels for the point positions. In addition, it also supports z, r, g, b, and id channels. The id channel is used for grouping points together as a single shape. By default when no id channel is present, each point is separate and unconnected.

Zone zone - The index of the zone to send to in Beyond.

Rate Mode ratemode - - Select the mode for calculating the rate of the image in Beyond. Note: this is not the rate of the CHOP.

  • Percent of Projector Sample Rate percent - Rate will be calculated as a percent of the default projector sample rate. Specify the percent using the Percent parameter.
  • Sample Rate sample - Specify the sample rate.

Percent percent - Specify the sample rate as a percent of the projector default sample rate.

Sample Rate rate - Specify the sample rate of the image in Beyond

Vertex Repeat repeat - How often to repeat each point in the image (not including blanked points).

Vector Frame vector - When enabled, the image will be sent to Beyond as a vector frame. A vector frame will have extra computation done in Beyond, such as the addition of blanking points. When disabled, the image will be sent as points to the DAC, with nothing extra added.

Resend Image resend - Resend the image to Beyond.

Enable Laser Output enableout - Enables laser output in Beyond. Has the same effect as hitting the "Enable Laser Output" button in Beyond.

Disable Laser Output disableout - Disables laser output in Beyond. Has the same effect as hitting the "Disable Laser Output" button in Beyond.

Blackout blackout - Sends a blackout command to Beyond. Has the effect as hitting the "Blackout" button in Beyond.

Parameters - Common Page

Time Slice timeslice - Turning this on forces the channels to be "Time Sliced". A Time Slice is the time between the last cook frame and the current cook frame.

Scope scope - To determine which channels get affected, some CHOPs use a Scope string on the Common page.

Sample Rate Match srselect - - Handle cases where multiple input CHOPs' sample rates are different. When Resampling occurs, the curves are interpolated according to the Interpolation Method Option, or "Linear" if the Interpolate Options are not available.

  • Resample At First Input's Rate first - Use rate of first input to resample others.
  • Resample At Maximum Rate max - Resample to the highest sample rate.
  • Resample At Minimum Rate min - Resample to the lowest sample rate.
  • Error If Rates Differ err - Doesn't accept conflicting sample rates.

Export Method exportmethod - - This will determine how to connect the CHOP channel to the parameter. Refer to the Export article for more information.

  • DAT Table by Index datindex - Uses the docked DAT table and references the channel via the index of the channel in the CHOP.
  • DAT Table by Name datname - Uses the docked DAT table and references the channel via the name of the channel in the CHOP.
  • Channel Name is Path:Parameter autoname - The channel is the full destination of where to export to, such has geo1/transform1:tx.

Export Root autoexportroot - This path points to the root node where all of the paths that exporting by Channel Name is Path:Parameter are relative to.

Export Table exporttable - The DAT used to hold the export information when using the DAT Table Export Methods (See above).

TouchDesigner Build:

Ableton Link • Analyze • Angle • Attribute • Audio Band EQ • Audio Device In • Audio Device Out • Audio Dynamics • Audio File In • Audio File Out • Audio Filter • Audio Movie • Audio NDI • Audio Oscillator • Audio Para EQ • Audio Play • Audio Render • Audio Spectrum • Audio Stream In • Experimental:Audio Stream In • Audio Stream Out • Beat • Bind • BlackTrax • Blend • Blob Track • Bullet Solver • Clip Blender • Clip • Clock • Composite • Constant • Copy • Count • CPlusPlus • Cross • Cycle • DAT to • Delay • Delete • DMX In • Experimental:DMX In • DMX Out • Envelope • EtherDream • Event • Expression • Extend • Fan • Feedback • File In • File Out • Filter • Experimental:Filter • Experimental:FreeD • Function • Gesture • Handle • Helios DAC • Hog • Hokuyo • Hold • Import Select • In • Info • Interpolate • Introduction To CHOPs id • Inverse Curve • Inverse Kin • Join • Joystick • Keyboard In • Keyframe • Kinect Azure • Experimental:Kinect Azure • Kinect • Lag • Laser • Leap Motion • Leuze ROD4 • LFO • Limit • Logic • Lookup • LTC In • LTC Out • Math • Experimental:Math • Merge • MIDI In • MIDI In Map • MIDI Out • Mouse In • Mouse Out • NatNet In • Noise • Null • Object • Oculus Audio • Oculus Rift • OpenVR • Experimental:OpenVR • OSC In • OSC Out • Out • Override • Panel • Pangolin • Parameter • Pattern • Perform • Experimental:Phaser • Pipe In • Pipe Out • PosiStageNet • Pulse • RealSense • Experimental:RealSense • Record • Rename • Render Pick • Reorder • Replace • Resample • S Curve • Scan • Script • Select • Sequencer • Serial • Shared Mem In • Shared Mem Out • Shift • Shuffle • Slope • SOP to • Sort • Speed • Splice • Spring • Stretch • Stype • Switch • Sync In • Sync Out • Tablet • Time Slice • Timeline • Timer • TOP to • Experimental:TOP to • Touch In • Touch Out • Trail • Transform • Transform XYZ • Trigger • Trim • Warp • Wave • Experimental:WrnchAI • ZED

An Operator Family which operate on Channels (a series of numbers) which are used for animation, audio, mathematics, simulation, logic, UI construction, and many other applications.

An Operator Family that reads, creates and modifies 3D polygons, curves, NURBS surfaces, spheres, meatballs and other 3D surface data.

The location of an operator within the TouchDesigner environment, for example, /geo1/torus1, a node called torus1 in a component called geo1. The path / is called Root. To refer instead to a filesystem folder, directory, disk file or http: address, see Folder.

samples-per-second of a CHOP. Each CHOP in your network has a sample rate, whether it is used or not. The overall timeline has a "frame rate", which is the number of animation frames per second, generally your monitor display frequency.

A sequence of vertices form a Polygon in a SOP. Each vertex is an integer index into the Point List, and each Point holds an XYZ position and attributes like Normals and Texture Coordinates.

The term "Frame" is used (1) in the Timeline, (2) as a time-unit in CHOPs, (3) as a time-unit in TOPs, and (4) with movies images which are read and created with TOPs.

A Time Slice is the time from the last cook frame to the current cook frame. In CHOPs it is the set of short channels that only contain the CHOP channels' samples between the last and the current cook frame.

A parameter in most CHOPs that restricts which channels of that CHOP will be affected. Normally all channels of a CHOP are affected by the operator.

Exporting is the connection of CHOP channels to parameters of operators. The output of each exporting CHOP is one or more channels, active only while the CHOP Viewer is on. The current value of a channel can be exported to a parameter of any operator, overriding that parameter's value. See Parameter.

An Operator Family that manipulates text strings: multi-line text or tables. Multi-line text is often a command Script, but can be any multi-line text. Tables are rows and columns of cells, each containing a text string.

Parameters in TouchDesigner are an operator's settings (numbers, menus, flags, strings, paths) which the user can alter. Parameters for any operator can be opened by right-clicking on the operator and selecting "Parameters..." A currently selected operator's parameters can be viewed in a Network Editor by pressing the keyboard shortcut 'p'.

TouchDesigner is a hierarchy of components. "root" is the top-most network in the hierarchy. The Path is simply /. A typical path is /project1/moviein1.