Custom Channels are additional animation channels that you can add to the current Xpressionist group. These channels are useful if you want to use an additional function curve to control the channel as animated variable (envelope) or to buffer values for later use as an indexed variable.

Custom Channels don't have any effect on the behavior of the Xpressionist plugin itself unless they are not used as variables in an expression that alters an attribute of the Xpressionist group. They are only value buffers or can be used as envelopes for operations within Xpressionist.

A custom channel can have one of four data types: floating point (double), vector (vec), 8bit vector (RGB) or 8bit vector with four components (RGBA)

Add Custom Channel

To add a custom channel click on the Add button. A window pops up where you can define the data type for the channel as well as give the new channel a name. When you have added a custom channel it will be displayed with its data type behind it in brackets.

Remove Custom Channel

To remove a custom channel click on the Remove button. You can always only remove the last channel from the list. This is because Xpressionist can't sort the list or shift animation data between different channels if you remove a channel from the middle of the list.

Add a Custom Channel to th Active Channel list

To add a Custom Channel to the Active Channel list you need to go to the Channel tab. There you select the current Xpressionsit group. When you do so, the Custom Channels that you have created will be listed in the Channel Selector. You add your Custom Channels with a double click to the Actibe Channel list the same as any other channel listed in the Channel Selector.