7/31/2023 0 Comments Tracking point after effectsThis can be done by using After Effects expressions.įirst add an expression to your data. To get the required result after import, you need to convert your data to have one keyframe per frame. Please note, that complex interpolation between keyframes can not be exported in this way and interpolation during import will default to be linear. Motion Tracker Feature Center data selected (green) for 4 Track PointsĬorner Pin and Transform data selected (green) The import can handle 'Corner Pin' data and 'Transform' data or 'Motion Tracker Feature Center' data, if the motion tracker has 4 points. You can then paste them into a plain text file. To export the tracking data from After Effects, you need to select the keyframes/data points and copy them(Ctrl-C). To see examples of Adobe After Effects Keyframe Data refer to the sections Importing Keyframe Transform data and Importing Corner Pin data Exporting from After Effects Keyframe Transformation Data can combine the transformation data from multiple compositions into a final set of coordinates. The difference between the two import methods is:Ĭorner Pin Data is expected as having position data for every frame (and interpreted like that with disregard to frame numbers), Keyframe Transformation Data can include keyframes and data is interpolated for missing frames in between.Ĭorner Pin Data must include 4 corner coordinates (either as 'Motion Tracker' or 'Effects' statements), Keyframe Transformation Data does not need to include the four corner 4 coordinates.Ĭorner Pin Data is scaled automatically to the size of the video it is imported into, based on size information from the data, for Keyframe Transformation Data the scaling is optional After Effects will label all exported position data as 'Adobe After Effects X.Y Keyframe Data' The difference between the two types is subtle and a subset of the data exported by After Effects can be imported through both methods and give the same results. We provide two slightly different import dialogs for this. The position data to be imported can either be After Effects Corner Pin Data (with additional transformations) or a set of After Effects Keyframe Transformation Data. This is a brief tutorial how to import position data exported from After Effects.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |