3D Compositing with Action > Action: Analyzer >
Using the Point Cloud Object

Once you have created one or more point cloud objects from your camera or object tracking analysis, you can use the Point Cloud menu to help you snap objects to the points in 3D space and have them perfectly follow the movement in the scene.

In the schematic, you can see that the axis of a point cloud object is automatically attached to the Analyzer node. You can then add objects (such as a 3D text geometry), and use the Point Cloud menu settings to help you position the object into your scene.

NoteIf the point cloud object is moving (that is, you performed object tracking), you'll need to parent the point cloud object to the object you want to position, so that it can properly follow the movement of the point cloud.

To access the Point Cloud menu, double-click the point cloud object in the schematic.

The settings in the Point Cloud menu are as follows:

Point Cloud Display box
  Select how the point cloud is displayed in the image. You can choose between spheres, boxes, and crosses.
Point Cloud colour pot
  Displays the colour of the point cloud points. Click to change the colour.
Point Size field
  Displays the size of the point cloud points.
Transparency field
  Displays the transparency level of the point cloud points.
Delete Selected button
  Click to delete selected points from the point cloud.
Snap To Point button
  Enable to snap an object automatically to a point in the point cloud. Press Shift and drag the object axis towards the point cloud to snap to the desired point.
Tolerance field
  Displays the minimum distance between the object and point cloud for snapping to occur.
Transform box
  Select how an attached object behaves based on the movement of the point cloud.

Select: | To:
--- | ---
No Transform | Apply no transformation on the attached object.
Plane Transform | Align an object based on the average plane of the maximum number of points.
Centroid Transform | Align an object to the centre of the point cloud.