3D Трекинг в Blender и After Effects | Трекинг по видео

Introduction

In this tutorial, we will learn how to create 3D tracking for a car in Blender. This process is essential for integrating 3D models into video footage, enhancing the realism of animations and visual effects. Whether you're a beginner or looking to refine your skills, this guide will provide you with actionable steps to achieve effective 3D tracking.

Step 1: Setting Up Your Project in Blender

• Open Blender and create a new project.
• Import your video footage:
  • Go to the "Video Sequence Editor" and click on "Add" > "Movie."
  • Select your video file and click "Add Movie Strip."
• Set the project frame rate to match your video:
  • Go to the "Output Properties" tab and adjust the frame rate accordingly.

Step 2: Adding a Camera for Tracking

• Switch to the "3D View" and add a new camera:
  • Press Shift + A and select "Camera."
• Position the camera to match the angle of the footage:
  • Use the transform tools (G to grab, R to rotate) to adjust the camera position.

Step 3: Enabling Motion Tracking

• Switch to the "Movie Clip Editor":
  • Select your video strip and click on "Set Scene."
• Enable the tracking settings:
  • Go to the "Tracking" tab and choose "Detect Features." This will allow you to find tracking markers in your footage.

Step 4: Tracking Markers

• Manually add tracking markers:
  • Move the playhead to a frame where the object is visible.
  • Press Ctrl + Click to create tracking markers on distinct features of the car.
• Track the markers:
  • Select a marker and click on "Track Forward" to analyze the motion.
  • Repeat this for all markers to ensure consistent tracking throughout the footage.

Step 5: Solving the Camera Motion

• After tracking, go to the "Solve" tab:
  • Click on "Solve Camera Motion" to compute the camera movement based on the markers.
• Check the accuracy of tracking:
  • View the "Reconstruction Error" to ensure it's low (ideally below 1).

Step 6: Creating the 3D Model

• Once the camera motion is solved, create your 3D model:
  • Use Blender's modeling tools to design the car or import an existing model.
• Position the model in the scene to align with the tracked footage.

Step 7: Rendering the Final Animation

• Set up lighting and materials for your 3D model to match the scene.
• Go to the "Render Properties" and configure the output settings:
  • Choose resolution, frame range, and file format.
• Click on "Render" to create the final animation.

Conclusion

You've successfully created a 3D track for a car in Blender! This tutorial covered the essential steps from setting up your project to rendering the final animation. For further learning, consider exploring advanced techniques in Blender or integrating your 3D models into After Effects for enhanced effects. If you have questions or need assistance, feel free to join the community on the provided Telegram link for support and share additional resources. Happy animating!