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Whippet GP contains operators and menus to help insert new Grease Pencil (GP) keyframes, manage GP Object transformations and all the Blender GP related UI panels for easy access. Operators can be mapped to keyboard shortcuts to (see suggested keymapping below). Right click on a button and click ‘Add to Quick Favorites’ if you prefer to use the Quick Favorites Menu.
Managing Keyframes
Whippet GP comes with buttons that help manage keyframes on the timeline without having to scrub the timeline. Similar to how Storyboard Pro, you can insert a new drawing (or panel) with shortcuts. All buttons respect unlocked/locked layers, if a layer is locked, it will not create a keyframe for that layer when using the operators.
Retain Timing - toggle on to insert GP keyframes in between existing keyframes while keeping the timing between the previous drawing and the subsequent drawing. All keyframes of all objects within the camera frame range are moved to retain timing.
Frame Hold - slider or text input to set how many frames ahead your playhead jumps to create a keyframe.
Number of Frames - select/type in the number of keyframes you want to add in bulk.
Add Multiple - adds the # of Frames in keyframes to the timeline. If you type in 10 into the box, it will add 10 keyframes every x number of frames.
New - insert a blank GP keyframe at the current frame if no GP keyframe exists. If a GP keyframe exists then the playhead moves forward x number of frames based on the Frame Hold amount set
Duplicate - duplicates the current GP keyframe or the previous GP keyframe if no keyframe exists on the current frame.
Clear Layers - clears all Grease Pencil strokes/fills from the current keyframe across all unlocked layers
Delete Frame - removes the current keyframe (for all unlocked layers)
Keyframe Flipping
The flipping options provide you ways to jump between drawings quickly and effectively. You can map the prev/next key frame buttons to ‘A’ and ‘F’ on your keyboard (see key mapping below) for fast flipping between keyframes. Note, locked layers are ignored in all circumstances.
GP Keys Only - allows you to move between GP keyframes only and ignore object transform keys.
Active Layer - lets you jump between keyframes only for the active layer. It will also ignore object transform keys.
Loop Frames - cycle back to the first keyframe inside the frame range (or preview range).
Prev Key - jumps to the previous keyframe
Next Key - jumps to the next keyframe
Keyframe Flipping operators are also located with the custom Dopesheet Header Buttons
Object Tools
These operators help manage Grease Pencil objects on the Object level and provide additional layer tools.
Add GP Cam / Cursor - adds a new GP object either in front of camera or at the 3D Cursor. Note: if you are in Draw mode, adding a new GP object will auto insert new GP layer keyframes for you.
Set Location - (requires active camera) inserts object keys and saves the transformation in relation to an active camera. This is used when using 2D Storyboard Mode and the Reposition operator. Set Location can be done across multiple selected GP objects.
Reposition - moves the active or multi-selected GP objects back to the default Set Location position in relation to the active camera.
Add X Keys - the X stands for Transform (Xform). Highlighting GP Keyframes in the dopesheet and then pressing this button (also located with the custom Dopesheet Header Buttons) will add object keyframes at each frame where there is a GP Keyframe. This feature can be used for quickly adding object keys to render stepped key animatics. See the Render Stepped toggle in Whippet Shots.
Pin Materials - toggle on to set remember materials on a per layer basis so every time you switch to that layer of a certain GP object, it will reselect the last material you had on that layer
Show in Front - displays the object in front of all others making it easier to draw to scale if a GP object is behind geometry
Sync Layers - toggle on to activate the same layer while cycling between GP objects.
Cycle GP Prev/Next - quickly selects the next or previous GP objects inside the Whippet Collection folders.
Interpolation - select the default interpolation mode. After creating a new camera with 2D Storyboard Mode on, adding object animation keyframes will use your interpolation setting. This can also switches the setting in preferences.
Camera Constraints
This menu allows users to add and remove camera constraints for GP objects on a per camera basis. The constraint’s visibility is set by Drivers that turn the constraints functionality on and off depending on the camera that is active. This allows for more flexibility while relying on less GP objects. Users can always add one off GP objects to a Shot Layer for certain use cases if desired.
Parent to Camera - adds a child of constraint to the active camera.
Aim Constraint - adds a child of constraint to the active camera but removes the location X, Y, Z constraints so the GP object remains in place but faces the camera as the camera moves.
Delete Constraint - removes the selected constraint from the object.
VFX
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