The Feedback CHOP stores channels from the current frame to be used in a later frame, without forcing recooking back one frame. It allows you to get the state of a CHOP as it was one frame or time slice ago.
For example, if you need the position or speed of an object from a frame ago in order to compute its position, displacement or speed at the current frame, you would select a CHOP containing those values, and it will output it a frame or time slice later.
It allows connecting CHOPs in circular loops without Infinite Recursion errors. It simply copies its input without cooking it first.
Parameters - Feedback Page
output - ⊞ -
- Previous Channels at Previous Time
previous- Grabs the channels at prior time.
- Previous Channels at Current Time
shift- Grabs channels at current time.
- Last Sample at Current Time
sample- Uses the last sample received.
delta - Time differential during feedback. If on, it adds a 'dt' channel whose value is the elapsed time since the last cook.
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 -
- Input 1 -