Aligning to an Existing Mesh

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‌Aligning to an Existing Mesh ‌

You may have an existing mesh that is a 3-D model of the entire set. If you do and you would like to use that existing mesh, here are some additional ways to do it (in addition to using Place mode on the Perspective viewport or a tabular list of 3-D locations).

If you don't have trackers, or don't want to use trackers, you can use the perspective view's Pinning toolbar to literally pin the mesh to desired locations in the image. It's a rough method and cannot determine overall scaling, so it is most suited for tripod shots. For more information, see the Pinning Tool section of the Geometric Hierarchy Tracking manual (from the Help menu).

If you do have trackers that correspond identically to vertices in your model, you can use the following method. (It may be helpful to create these trackers using offset tracking ). Then, use the Add Links to Selected menu item in the Linking section of the perspective right-click menu to create links between the trackers and their corresponding vertices.

Or, use the Align Via Links dialog item on that same menu and select the Align World to Mesh Position option.

Alternatively, turn off Whole affects meshes on the Viewport right-click menu, turn on Whole, and move the camera around so that things are in the roughly right place (for when there isn't any actual data).

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