January 9, 2024

Best tracking system for Virtual Production?

Step into the future of filmmaking with REtracker Bliss. In my latest blog, I reveal how this innovative tracking device revolutionizes video production, offering unmatched flexibility and precision. Discover the transformative impact of REtracker Bliss on our high-energy shoots and learn why it’s a game-changer for creators at all levels.

In an era where technology continuously reshapes the landscape of creative industries, the realm of video production is no exception. My recent experience on a stunt-filled shoot has not only reaffirmed this notion but has also introduced me to a revolutionary tool that’s changing the game: the REtracker Bliss. This post is more than just a recount of a day’s work; it’s an exploration of how a compact piece of technology is redefining the boundaries of what’s possible in film and video production.

Imagine a day bustling with high-energy stunts, rapid camera movements, and the need for impeccable precision in every frame. That was our setting when we put the REtracker Bliss to the test. This little device, unassuming in its stature, proved to be a giant in performance, handling the rigorous demands of our dynamic shoot with astonishing ease and accuracy.

But what makes REtracker Bliss stand out? Its core technology is based on SLAM (Simultaneous Localization and Mapping), a radical departure from traditional marker-based tracking systems. This means no more time-consuming setups with markers dotting your ceiling or studio space. The result is a seamless, efficient, and highly adaptable tracking experience, vital for shoots that demand flexibility and speed.

The day’s success was a testament to the REtracker Bliss’s robust capabilities. Whether it was capturing the intricate details of a stunt sequence or maintaining the fluidity of camera movements, the device performed flawlessly, leaving us impressed and eager to explore its full potential. This blog post is an in-depth look at my experience with the REtracker Bliss, its technical prowess, practical applications, and why it stands as a beacon of innovation in the video production industry.

Experience with REtracker Bliss

The shoot day with REtracker Bliss was nothing short of a revelation in tracking technology. Having worked with various tracking systems like Stypean and Antilatency in the past, I was accustomed to certain limitations and extensive setup times. REtracker Bliss, however, broke these barriers with its marker-less tracking system, a feature that significantly reduced our setup time and increased our shooting flexibility.

One of the most striking aspects of using REtracker Bliss was its exceptional accuracy in tracking fast-paced action. In the world of stunt filming, where every movement is rapid and unpredictable, the Bliss’s tracking system didn’t just keep up; it excelled. It was able to follow the action seamlessly, a feat that is often challenging for traditional systems.

Another significant advantage was the ease of integration with our existing equipment. The Bliss is designed to be camera-agnostic, meaning it can be mounted on a wide range of camera types without any compatibility issues. This flexibility was a huge plus for us, as it meant we could use our preferred cameras without worrying about tracking limitations.

The real-time tracking capabilities of REtracker Bliss also opened up new creative possibilities. We could visualize complex stunts and camera movements in real-time, allowing for immediate feedback and adjustments. This not only enhanced the quality of our shots but also saved us valuable time in post-production.

Overall, the experience with REtracker Bliss was a game-changer. It streamlined our workflow, enhanced our creative capabilities, and proved to be a reliable tool in the most demanding of shooting environments.

Technical Overview of REtracker Bliss

Delving deeper into the technical aspects of REtracker Bliss, it becomes clear why this tool is a standout in the world of video production. At its core, REtracker Bliss utilizes a stereo camera system based on Simultaneous Localization and Mapping (SLAM). This technology marks a significant leap from traditional marker-based tracking systems. Unlike systems that rely on physical markers placed around the shooting area, REtracker Bliss intelligently identifies and uses environmental features to calculate its position and orientation. This not only simplifies the setup process but also provides remarkable flexibility, allowing for tracking in a variety of environments, both indoors and outdoors.

Another notable feature of REtracker Bliss is its compatibility with major software platforms like Unreal Engine and Aximmetry. This integration is crucial for modern production workflows, particularly when blending real and virtual elements. By working seamlessly with these platforms, REtracker Bliss ensures that the virtual components in a scene are perfectly aligned with the physical camera movements, enhancing the overall realism and quality of the final output.

The device’s tracking capability is further enhanced by its ability to capture and relay precise positional and rotational data. This accuracy is critical, especially when shooting scenes that require exact alignment of virtual and real-world elements. The inclusion of features like genlock, world pose, and Kalman filtering contribute to the device’s ability to deliver stable and reliable tracking data, a must-have in professional production settings.

From a technical standpoint, REtracker Bliss is a powerhouse. It’s designed to operate efficiently, with minimal power consumption and computational requirements, yet it delivers high performance that rivals more complex systems. The device’s error margin is impressively low, less than 1cm per 10m, ensuring near-perfect tracking accuracy over large distances.

In summary, the technical sophistication of REtracker Bliss is evident in its advanced SLAM-based tracking, broad software compatibility, and precise data handling. These features collectively make it a highly effective and versatile tool for a wide range of video production applications.

Practical Applications and Benefits

The practical applications of REtracker Bliss in the field of video production are vast and varied. One of the most significant benefits is the device’s portability and adaptability. Since it doesn’t require markers or a fixed setup, REtracker Bliss can be used in virtually any location, be it a cramped indoor space or an expansive outdoor setting. This portability opens up a world of creative opportunities, allowing filmmakers and video producers to envision and execute shots that were previously challenging or even impossible.

Another key advantage is the ease of workflow. The process of setting up and using REtracker Bliss is straightforward and user-friendly. Mount the sensor on the camera, connect it to a PC or laptop, and you’re ready to go. This simplicity is a boon, especially in fast-paced production environments where time is of the essence. Additionally, the unlimited range of the device and its ability to function equally well indoors and outdoors makes it an invaluable tool for productions that require a high degree of mobility and flexibility.

REtracker Bliss also plays a pivotal role in enhancing the creative process. The real-time tracking data it provides allows directors and cinematographers to make immediate and informed decisions about camera movements and positioning. This real-time feedback is not just a technical advantage; it’s a creative one, enabling a more dynamic and responsive approach to filmmaking.

From a business perspective, the versatility and efficiency of REtracker Bliss can lead to significant cost savings. Reduced setup times, fewer equipment requirements, and the ability to shoot in a wider range of locations all contribute to a more streamlined and cost-effective production process.

In essence, the practical applications of REtracker Bliss extend far beyond mere technical capabilities. It empowers filmmakers and video producers to push the boundaries of their creative visions, while also offering tangible benefits in terms of workflow efficiency and cost-effectiveness.

Comparing with giants

When comparing REtracker Bliss to other tracking systems like Stype and Antilatency, several key differences emerge. While systems like Stype have set a high bar in the industry, REtracker Bliss matches, and in some aspects, surpasses these standards. The most striking difference lies in the dependency on physical markers. Traditional systems require extensive setup with markers placed around the studio, which can be time-consuming and restrictive. REtracker Bliss, with its SLAM-based technology, eliminates this requirement, offering greater flexibility and faster setup times.

Another point of comparison is the accuracy and reliability of tracking data. In my experience, REtracker Bliss has demonstrated remarkable precision, particularly in challenging shooting scenarios involving rapid movements and complex stunts. This level of reliability is crucial for maintaining continuity and realism in shots that integrate real and virtual elements.

Finally, the ease of integration with existing equipment and software platforms is a significant advantage of REtracker Bliss. Its compatibility with a wide range of cameras and popular software like Unreal Engine means it can seamlessly fit into various production workflows without the need for extensive modifications or additional equipment.

Technical Specifications and Features

REtracker Bliss is a powerhouse of features and specifications designed to meet the demanding needs of modern video production. Its genlock capability ensures synchronization between the camera and other devices, crucial for multi-camera setups and complex shooting scenarios. The world pose feature provides accurate positional data, essential for aligning virtual elements in a scene.

Kalman filtering is another key feature that enhances the tracking stability, particularly in dynamic environments with a lot of movement. This results in smoother and more consistent tracking data, which is vital for creating seamless shots.

The device’s efficiency in power use and computational requirements means it can deliver high performance without the need for extensive resources. This efficiency makes it ideal for a range of production settings, from small independent projects to large-scale commercial shoots.

Lastly, the error margin of less than 1cm per 10m is a testament to the device’s precision. This level of accuracy is critical for maintaining the realism and integrity of shots, especially when integrating virtual and real-world elements.

Community and Support

The REtracker community, particularly the REtrackerista Discord community, is a vibrant and supportive network of professionals and enthusiasts. This community offers a platform for users to share experiences, tips, and collaborate on projects, creating a rich ecosystem of knowledge and expertise.

The weekly Sunday meetings hosted by the community are another valuable resource. These meetings feature discussions on new techniques, technologies, and sometimes guest talks from YouTube celebrities and industry experts. These sessions not only provide insights into the latest trends in virtual production but also foster a sense of camaraderie and collaboration among members.


Reflecting on my experiences and the capabilities of REtracker Bliss, it’s clear that this tool is a significant advancement in the field of video production. Its combination of cutting-edge technology, ease of use, and flexibility makes it an invaluable asset for filmmakers seeking to push the boundaries of their creative visions. The device’s ability to adapt to various environments and deliver precise tracking data enhances both the technical and artistic aspects of production.

Whether you’re a seasoned professional or just starting in the world of video production, I highly recommend exploring the possibilities that REtracker Bliss offers. Its impact on your work could be as transformative as it has been for me.

For those intrigued by the potential of REtracker Bliss, I encourage you to delve deeper into its features and consider how it could elevate your own production projects. To learn more, reach out to the team behind REtracker Bliss, join the vibrant REtrackerista community, or simply start experimenting with the technology. The possibilities are limitless, and the results could redefine your approach to video production.

Get more info on REtracker

Use the discount code FRIENDSOFRICHARD to get 10% off for the REtracker Bliss + Fizz bundle. https://www.retracker.co/retracker-fizz Discount code is valid till the end of February 2024


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Richard Frantzén

Unreal Engine & Aximmetry Expert specializing in future tech and Virtual Production

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