Choose File > Export > MAXON Cinema 4D Exporter.
The 3D camera tracker effect analyzes video sequences to extract camera motion and 3D scene data. The 3D camera motion allows you to correctly composite 3D elements over your 2D footage.
Like the Warp Stabilizer, the 3D camera tracker effect performs analysis using a background process. Feel free to adjust settings or work on a different part of your project while analysis is taking place.
The 3D solved track points appears as small colored x's. You can use these track points to place content into the scene.
You can select more than one layer at a time for camera tracking using the 3D camera tracker effect.
A shadow catcher layer also creates a light if one does not exist.
If creating multiple layers, each one has a unique numbered name. If creating multiple text layers, In and Out points are trimmed to match the point durations.
To move the target so that you can attach content to a different location, do the following:
Once at the intended location, you can attach content by using the commands in the context menu.
If the size of the targets is too small or too large to see, you can resize them to help visualize the planes. The target size also controls the default size of text and solid layers created using the context menu commands.
To resize a target, do one of the following:
To select track points, do one of the following:
To deselect track points, do one of the following:
Moving objects can confuse the 3D camera tracker effect. It can interpret points for stationary objects close to the camera as moving due to parallax. To help solve the camera, delete bad or unwanted points.
To delete unwanted track points, do the following:
After deleting unwanted track points, the camera is resolved. You can delete additional points while resolving takes place in the background. Deleting 3D points deletes the corresponding 2D points, as well.
You can quickly create a "shadow catcher" layer, used to create realistic shadows for the effect. A shadow catcher layer is white solid the same size as the footage, but set to accept shadows only.
To create a shadow catcher layer, use the Create Shadow Catcher, Camera and Light commands in the context menu.
If necessary, adjust the position and scale of the shadow catcher layer so the cast shadow appears as desired. This command also creates a shadow-casting light (a light that is switched on, and casts shadows) if one does not exist in the composition.
The effect has the following controls and settings:
Starts or stops the background analysis of the footage. During analysis, status appears as a banner on the footage and next to the Cancel button.
Specifies whether the footage was captured with a fixed horizontal angle of view, variable zoom, or a specific horizontal angle of view. Changing this setting requires a resolve.
Horizontal Angle of View
Specifies the horizontal angle of view the solver uses. Enabled only when Shot Type is set to Specify Angle of View.
Show Track Points
Identifies detected features as 3D points with perspective hinting (3D Solved) or 2D points captured by the feature track (2D Source).
Render Track Points
Controls if the track points are rendered as part of the effect.
When the effect is selected, track points are always shown, even if Render Track Points is not selected. When enabled, the points are displayed into the image allowing them to be seen during preview.
Track Point Size
Changes the displayed size of the track points.
Creates the 3D camera. A camera is automatically added when you create a text, solid, or null layer from the context menu.
Advanced controls for the 3D camera tracker effect:
You can define a ground plane (reference plane) and origin, for example, the (0,0,0) point of the coordinate system within the 3D Camera Tracker effect.
This action does not have any visible result, but the reference plane and origin of the coordinate system are saved for this scene. Any items that you create from within this instance of the 3D Camera Tracker effect are created using this plane and origin.
If you choose Set Ground Plane And Origin again, a warning tells you that objects already created using a different ground plane and origin are not to be updated using the new ground plane and origin.
In the Advanced section of the effect properties, there is a new option: Auto-delete Points Across Time.
If this option is on, when you delete track points in the Composition panel, corresponding track points (for example, track points on the same feature or object) are deleted at other times on the layer, so it isn't necessary to delete the track points frame by frame to improve the quality of the track. For example, you can delete track points on a person running through the scene, whose motion should not be considered for the determination of how the camera was moving in the shot. This method works for both 2D Source and 3D Solved track points.
You can delete selected track points with the Delete key or by context-clicking and choosing Delete Selected Points.
Even with the new Auto-delete Points Across Time feature, you can instead or additionally define an alpha channel for the layer to prevent the 3D Camera Tracker effect from considering a specific part of the image for determining a camera.
You can export 3D Camera Tracker data to 3D applications like MAXON CINEMA 4D.
Do the following:
Choose File > Export > MAXON Cinema 4D Exporter.
In the Text Exporting dialog box that opens, choose the Extrude or Text option.
Name the file and click Save.
Open the file in the 3D application.