Floor Alignment

The Aligner panel turns arbitrary reconstruction orientation into a usable Blender scene. It can snap selected floor points to the XY plane and flip inverted tracks.

How to use it

  1. 1 Import a camera tracking result.
  2. 2 Select points or vertices that represent the real floor.
  3. 3 Run Floor alignment to snap them to Blender world space.
  4. 4 Use Flip when the result is upside down or the vertical axis is wrong.
  5. 5 Rotate or fine-tune the parent object if needed.

Aligner Panel

A camera solve comes out at an arbitrary orientation. The Aligner panel puts it right side up on Blender's floor, and can turn a camera track into object motion.

Align to Floor

  • •
    Floor: in Edit Mode, select points of the point cloud that lie on the real ground and click Floor. The parent object of the result is rotated so those points lie flat on the XY plane, which snaps the ground of your scene onto Blender's grid. The button is greyed out until you have a valid selection.
  • •
    Flip: if the result ends up upside down after Floor, with the ground facing the wrong way, click Flip to invert the Z axis of the parent object.

Camera to Object Inversion

This box converts an animated camera into the inverse motion on another object, so the camera stays still and the object carries the movement. Pick the animated Camera and the Target (usually the point cloud or reconstructed object) with the pickers, then click Invert Motion. Until both are set, the button reads Select Camera & Target.

The tool reads the camera's animation, writes the inverted location and rotation keyframes onto the target, removes the camera animation and resets the camera to the first frame. This is the last step of an object tracking workflow: mask the object, track the object region with Heavy Tracking, then invert. See Camera Inversion.

Technical notes

Camera tracking systems often solve relative motion correctly but leave scale, orientation, and up direction arbitrary. Alignment makes the result easier to use for CG placement.

The YouTube breakdowns show this step repeatedly: point clouds are imported, cleaned, then aligned so roads, floors, and streets line up with the Blender grid.

Docs Point Cloud Cleanup

Point Cloud Cleanup removes noisy or unwanted points from imported Quick, Heavy, Dense, and mesh-related point cloud objects so the reconstruction becomes easier to inspect and use.

Docs Import Results

Import Results separates processing from scene import. Scan one folder to choose among indexed Quick, Heavy, Tripod, Planar, Dense, or Mesh results and to scope the solved-lens source used by calibration and STMap export.

Docs Quick Tracking

Quick Tracking is the fast realtime tracking mode. It is best for rapid previews, testing footage, and getting a practical sparse camera solve when the footage and camera intrinsics are suitable.

 Tutorial How to Camera Track iPhone Footage in Blender, Step by Step Tutorial How to Add 3D Objects to Tracked Footage in Blender (HDRI, LiDAR and Shadow Catcher) Guide Point cloud generation for Blender

Generate useful sparse and dense point clouds from tracked footage