Camera tracking with moving objects

Mask moving foreground objects before they damage the camera solve

MotionMaster 3D includes SAM2 AI masks, polygon masks, composed mask layers, and mask-guided Heavy Tracking for shots with cars, people, actors, reflections, or other moving elements.

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01

Why moving objects break camera tracking

Camera tracking works best when features belong to the static environment. Cars, people, animals, reflections, and foreground motion can create tracks that move differently from the background, which can confuse the solve.

MotionMaster 3D solves this by letting you create mask layers before Heavy Tracking. You can use AI masks for objects like cars and people, then add polygon masks for simple shapes or manual corrections.

  • SAM2 video segmentation for object masks.
  • Animatable polygon masks for deterministic manual control.
  • Composed mask folders connected into Heavy Tracking.
02

Track the background or isolate the object

The mask workflow can be used in two ways. You can track the black/unmasked background to ignore the moving object, which is common for normal camera tracking. Or you can track the white/masked object region for object-style workflows and then use camera inversion.

That flexibility matters because different VFX shots need different solve behavior. Sometimes the moving car should be ignored. Sometimes the car or object is the target.

  • Track background regions when the environment should define the camera motion.
  • Track masked object regions for object-motion workflows.
  • Use Camera Inversion when you want camera motion converted to object motion.

Keep learning

Documentation AI Masks and Polygon Masks

The masking system helps Heavy Tracking ignore or isolate moving objects. It supports SAM2 AI mask layers, manually drawn polygon layers, keyframed polygon animation, and composed mask output.

Documentation Camera Inversion

Camera Inversion converts an animated tracked camera into inverted keyframed motion on a target object, letting the camera stay fixed while the object or point cloud carries the apparent movement.

Documentation Heavy Tracking

Heavy Tracking is the primary high-quality workflow for camera reconstruction and solved lens data. Use it when the shot needs strong solve quality, a specific distortion model, calibration/STMap export, masks, undistortion, dense point clouds, or mesh generation.

 Tutorial Why Moving Objects Break Camera Tracks (and How to Fix Them)

A person walks through your shot, and suddenly a solve that should be easy slides, jitters or flips. It is one of the most common reasons a camera track fails, and one of the easiest to fix once you understand what the solver is assuming.

Tutorial How Masks Improve Camera Tracking: AI and Polygon Masks Explained

A tracking mask tells the solver which parts of the image to trust. Used well, it turns a shot with people, cars or swaying trees from unsolvable into routine. Here is how tracking masks work, when you need one, and how I build them in Blender with AI and polygon masks.

Build the tracked Blender scene, not just a solve file

MotionMaster 3D starts at $29.99 as a one-time purchase and is built for camera tracking, reconstruction, masks, dense point clouds, mesh generation, cleanup, alignment, and batch workflows inside Blender.

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