The technology of virtual reality (VR) is widely used in various fields, such as games and teaching. With the increasing number of applications we want to be able to record, edit, and share the content produced in VR environments. For example, a whole social VR experience could be recorded and then shared with other people who could later reenter the scene. The goal of this work is to create a toolkit for Unity game engine, which will allow a user to create VR-compatible recordings and display the trajectories of the recorded objects. The visualized trajectories will encode the position, speed, and rotation of the object, and must be modifiable so the recording can be post-processed. The tasks are to:

• Analyze the existing solutions and design the visual representations and functionality of these recordings and trajectories based on the existing solutions. Focus on how to store the recorded objects and their data so they can later be replayed and visualized.
• Discuss why this design was chosen and compare it with other options.
• Implement the toolkit for Unity game engine. The recordings and trajectories should be easily serializable.
• Demonstrate how to use the toolkit in some existing Unity VR project (e.g. Edive).