Shuffle CHOP
Summary[edit]
The Shuffle CHOP reorganizes the samples in a set of channels.
It is useful for transforming data received by the SOP to CHOP and TOP to CHOPs into channels containing only one row or column. Data can be easily manipulated, then transformed back if needed.
Parameters - Shuffle Page
Method method - ⊞ - Chooses the operation "shuffle" performs:
- Off
off-
- Swap Channels and Samples
swap- Performs a channel transpose operation, by storing all samples at the same index in the same channel. If 25 channels are in the CHOP with a length of 33 samples, 33 channels will be created with a length of 25.
- Sequence Channels by Name
seqname- Sequence channels together that share the same alphabetic name, in the order of their number. (i.e. chan2, chan3 and chan1 would be sequenced in the order chan1, chan2, chan3).
- Sequence All Channels
seqall- Sequence all channels in the CHOP resulting in one long channel.
- Sequence N Channels
seqn- Sequence channels in groups of N together. For N=4, channels 0 to 3, 4 to 7, etc. will be sequenced.
- Sequence Every Nth Channel
seqeveryn- Sequence every Nth channel together. For N=4, channels 0,4,8,.., 1,5,9,..., etc. will be sequenced.
- Sequence All Samples
sallsamples-
- Split All Samples
splitall- Split every channel into channels of 1 sample, each containing a different sample from the original channel.
- Split N Samples
splitn- Split each channel into segments of N samples (specified below).
- Split Every Nth Sample
spliteveryn- Take every Nth sample from the original to form N new channels.
For all splitting operations, channels will be numbered according to their segment number. (i.e. chan would be split into chan1, chan2, chan3, etc).
N Value nval - The value of N for Sequence: Every Nth Channel, Sequence N Channels, Split N Samples and Split Every Nth Sample.
Use First Sample Only firstsample - Just use the first sample of each channel.
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 hasgeo1/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).
Operator Inputs
- Input 0 -
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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.
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.
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.
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.
