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).

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