keyframe editor

Keyframe Editor

Keyframe Editor allows users to save keyframes for creating animations. Use Set Keyframe to save or overwrite a keyframe. A keyframe contains all the information needed to recreate the required image.

Once saved, keyframes can be moved to change the frame number. Users can overwrite the keyframes. Select a keyframe by clicking on the keyframe image. Once selected, a keyframe can be deleted using Remove Keyframe.

Drishti interpolates the following properties between keyframes :

* transfer function information
* lighting information
* brick information
* clip information
* path information
* subvolume bounds
* mask tag colors
* background color
* captions
* tick information
* camera parameters
* crop, dissect, blend, displace, reveal 

Mouse Bindings

Mouse binding	Description
Left Click	If clicked on a keyframe image, that keyframe is selected. If clicked on the ruler and lies within the animation range, recreate image by interpolating the frame information from keyframes on either sides.
Left Drag	Move selected keyframe. If keyframe is from a selected range all the keyframes in the range are moved relatively. Can be used for scaling the animation sequence.
Shift+Left Drag	Press and drag to select a portion on the keyframe range. Once a portion on the keyframe range is selected, select and drag keyframe within the selected range to shrink/expand the animation. Keyframes within the selected range can be deleted by pressing Remove Keyframe button.
Middle Drag	Move the selected sequence. If nothing is selected the entire animation sequence is moved.
Right Click	Reset the selection.

Keys	Description
Space Bar	If a keyframe is selected, shows panel for selection of interpolation style for various properties. The selected style is valid only between selected keyframe and the next one. If no keyframe is selected, show this help.
Ctrl+c	If a keyframe is selected, copy that keyframe into an internal buffer.
Ctrl+v	Paste the copied keyframe at the specified position on the range. If there is already a keyframe at the specified position, user is shown a properties page to select properties to copy. If user has selected a portion of the keyframe range using Shift+Left Mouse drag, a properties page is shown to select properties for copying. All the keyframes in the selected range are modified.