OSC Out CHOP
The OSC Out CHOP sends all input channels to a specified network address and port. Each channel name and associated data is transmitted together to the specified location. TouchDesigner time stamps all outgoing Open Sound Control messages with the time of the outgoing frame relative to the system time when the first message was sent. OSC CHOPs in TouchDesigner use the udp transport protocol.
OSC Out will either send all the channels each cook or it will only send each channel depending on if it has changed at all since the last time it was sent. This is determined by the Send Events Every Cook flag.
NOTE for Windows OS - If experiencing connection issues make sure Windows Firewall is disabled.
Parameters - OSC Out Page
active - While On, the CHOP sends information to the network port. When Off, data is not sent.
protocol - ⊞ - Selects the network protocol to use. Refer to the Network Protocols article for more information.
- Messaging (UDP)
- Multi-Cast Messaging (UDP)
- Reliable Messaging (UDT Library)
netaddress - The network address of the server computer. This address is a standard WWW address, such as 'foo' or 'foo.bar.com'. You can put an IP address (e.g. 100.123.45.78). If you put "localhost", it means the other end of the pipe is on the same computer.
port - The port which OSC Out will send packets to.
localaddress - Specify an IP address to send from, useful when the system has mulitple NICs (Network Interface Card) and you want to select which one to use.
Max Queue Size
maxsize - Specifies the maximum number of messages OSC Out will try to send at a single time.
Max Queue Size Unit
maxsizeunit - Select the units to use for this parameter, Samples, Frames, or Seconds
Cook Every Frame
cookalways - Specifies that this CHOP should be cooked every frame regardless of CHOPs below it are cooking.
numericformat - ⊞ - Choose the data format to send data between 32-bit integer, 32-bit float, or 64-bit double.
- Int (32 bit)
- Float (32 bit)
- Double (64 bit)
format - ⊞ - Specify how to format the outgoing messages.
sample- Sends the current sample in each channel.
- Time Slice
timeslice- Sends all samples of the current Time Slice in each channel.
transpose- Sends the first sample in each channel transposed together into a single multi-sample channel.
Max Message Bytes
maxbytes - Limits the size of the outgoing message packets and splits up the message accordingly.
Send Events Every Cook
sendevents - When on, OSC Out will send all channels every cook regardless if the value has changed. When off, OSC Out only sends data which has changed.
Parameters - Common Page
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 - 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.
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
autoexportroot - This path points to the root node where all of the paths that exporting by Channel Name is Path:Parameter are relative to.
exporttable - The DAT used to hold the export information when using the DAT Table Export Methods (See above).
- Input 0 -
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To re-compute the output data of the Operators. An operator cooks when (1) its inputs change, (2) its Parameters change, (3) when the timeline moves forward in some cases, or (4) Scripting commands are run on the node. When the operator is a Gadget, it also cooks when a user interacts with it. When an operator cooks, it usually causes operators connected to its output to re-cook. When TouchDesigner draws the screen, it re-cooks all the necessary operators in all Networks, contributing to a frame's total "cook time".
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.
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.
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'.