The Channel viewport provides an exhaustive window into the soul of the modo animation system. All Channels of any item can be viewed in the Channel Viewport. Channels are simply any of the animateable attributes of an item (the identical attributes found in the Properties viewport!). The Channels viewport provides a direct method for selecting channels as well as creating, navigating and managing any keyframes on said channels. There are four columns on the Channel viewport; Channels, Value, Status and Source. Obviously the first column displays the channel names for the currently selected Item, the second column displays the value of the channel at the current scene time. The Status (S) column shows the state of the channel be it animated, static or actually on a keyframe. This is communicated via the same dot method used on the Channel keyframing control. The last column displays the 'Source' of the value, which means where the current value is stored, internally, these will be important to users when defining Render Passes and when using the skeleton tools to define rigs for animation.
Interacting with Channels--
Same as the 'Properties' viewport, the Channels viewport updates to reflect the current item selection. This can be items within the item list, the shader tree, or even the Groups palette. Once selected, all the animateable attributes appear in the Channels viewport. To affect an attributes value, the user simple needs to LMB+click directly over the current value in the 'Value' column. For toggles (boolean values), this will change the value field between true/false. For attributes with various properties, a menu will open presenting all the possible options. For numerical values, users can use the click+pause action to activate the field to enter a new numerical value, pressing enter to set it, or simply clicking away form the field.
Setting Keyframes--
Users can set animation keyframes in all the usual ways using the keyframe buttons, the 'S' keyboard shortcut, in the 'Properties' viewport, or within the 'Graph Editor'. To set a keyframe for a value directly in the Channels viewport, users can RMB+click on the target value and choose the 'Add Key' option from the context menu. Users may also remove keyframes using this methodology. When any attribute has a keyframe, colored circles will appear next to the value in the 'S' (Status) column referencing the attributes current state. The possible states are--
None- Channels is at the default value
Constant- Channel has a constant value
Animated- No keyframe at the current time position
Animated- Keyframe at the current time position
Mixed- Channels have differing values or state
Driven- Channel is driven by an external source
Undefined- Channel is not defined
An arrow over the dot represents that channel as driving another for a channel link.
Driver- Channel is linked to another
A gear icon represent a channel that is being controlled by another for a channel link
Driven- Channel is linked to another
Users can automatically select input/output items by selecting the appropriate channels and pressing ' i '
to select input, and 'o' to select output.
Contextual Menu--
RMB+clicking in the Channels viewport opens up the contextual menu with options for modifying the keyframes of the various channels.
Add Key: Sets a keyframe at the current time with the current value.
Remove Key: Removes the keyframe at the current time.
Graph Editor: Opens the Graph Editor window. The Graph Editor represent the interpolations of keyframes, basically what happens in-between.
Channel Links: Opens the Channels Links palette, useful in having one channel control another automatically, but the functionality has been replaced by the superior Schematic View.
Next/Previous/First/Last Key: Moves the timeline to the appropriate time.
Bake: Bakes, or freezes the current animation to individual keys at every frame. Useful when exporting animations of driven items.
Remove Edits: Removes all keyframes, retaining the value of the initial key.
Remove All: Removes all keyframes and returns to the default value.
Move to Scene: Takes the current channel value and moves it to the 'Scene' level, the default base level value used when working with Render Passes.
Set Setup Value: Used only in Setup mode to tell modo that the values for this channel should be kept separate between 'Setup' and 'Scene' actions. So when the user is editing a channel out of 'Setup' mode it won't affect the setup value (so it has a value in Setup and a different one in the Scene action). This can be used for example to hide certain rig elements when animating but have them visible in setup mode without having to toggle visibility all the time.
Apply to Setup: Takes the current channel value and set it as the default 'Setup' value, essentially the resting value of an item prior to being deformed.
Restore to Setup: Removes the existing value for the channel reverting it back the 'Setup' state.
Select Input Items: For driven channels, this option selects the driver item or channel.
Select Output Items: For driven channels, this option selects any items or channels being driven by the current channel.
The following options are relevant only to User Created Channels.--
Rename: Opens a dialog box to Rename the selected user channel.
Type: Opens a dialog box allowing users to modify the type of user channel.
Default Value: Opens a dialog box allowing users to specify a default value for the user channel.
Set Minimum Value: Opens a dialog box allowing users to set a minimum value for the user channel.
Remove Minimum Value: Removes any minimum value, if specified.
Set Maximum Value: Opens a dialog box allowing users to set a maximum value for the user channel.
Remove Maximum Value: Removes any maximum value, if specified.
Remove Channel: Deletes the selected user channel.
Context Menu--
RMB+clicking on the 'Channels' tab will open the viewport menu. Select the 'Viewport Settings' to open the Channels viewport options menu.
Grouping: The first three options define how channels are grouped in the channel list
Group By Package- Organizes channels by package, sub-groupings of related elements by individual item.
Group By Item- Organizes channels strictly by item.
Flat List- Channels listed as straight list with no grouping.
Show All: When enabled shows all channels on an item, when disabled certain less used channels are hidden such as Matrix channels.
Show Merged: When enabled, combines all the channel values for all selected items, instead of listing each item's channel one after another. Useful when gang editing multiple items at once.
Show Group Members: When enabled, show the members of any selected Group.
Show Add Transform Entries: Displays the 'Add Position/Rotation/Scale' entries to the channel list. These options provide a shortcut to users for adding additional transform channels, but for smaller monitors removing them can save some screen real-estate.
