Gracia Launches First 4D Gaussian Splatting App for Apple Vision Pro, Bringing Fully Volumetric Video to Mixed Reality

Gracia, the company building end-to-end infrastructure for 4D Gaussian Splatting (4DGS) volumetric video, led by Georgii Vysotskii, Andrey Volodin, and the team, launches its free app for Apple Vision Pro, available worldwide. It is the first application that brings streamable, fully volumetric moving captures to visionOS in mixed reality. The first public hands-on appearance will take place at AWE USA 2026, where the company will present Apple Vision Pro demos for attendees.

Market Opportunity.

The global volumetric video market is projected to reach $10.29 billion by 2030, growing at a compound annual growth rate (CAGR) of 26%, according to Arizton. Growth is being driven by the increasing adoption of augmented reality (AR) and virtual reality (VR) technologies, which require high-quality 3D assets and immersive digital experiences to power next-generation applications.

Beyond Spatial Video.

While Apple reports that more than 3,000 applications have been built for visionOS, demand for immersive content continues to outpace supply. Although Apple has expanded its immersive video catalog and introduced live sports experiences, much of the available content remains limited to flat video, stereoscopic 3D, or fixed-perspective formats.

Gracia takes a different approach with fully volumetric content. Unlike traditional 3D video or the limited-perspective spatial experiences introduced in visionOS 26, users can move around and explore performances and scenes from any angle within a passthrough mixed reality environment. The "fourth dimension" in its 4D Gaussian Splatting (4DGS) technology is time, enabling dynamic, living captures rather than static 3D models.

Streaming-First Architecture.

Gracia’s volumetric experiences are available through both streaming and download. To support real-time delivery of high-fidelity 4DGS content, the company developed a codec-like compression system that transmits keyframes and motion updates rather than the complete scene for every frame.

This approach reduces bandwidth requirements by more than an order of magnitude compared with the company’s earlier technology, making fully volumetric content practical for streaming. For optimal performance, Gracia recommends an internet connection of at least 80 Mbps.

Pushing the Limits of Volumetric Rendering.

According to CTO and co-founder Andrey Volodin, rendering volumetric video on the Apple Vision Pro’s dual 4K displays has been one of the company's most significant technical challenges. The latest release enables Gracia’s volumetric captures to run seamlessly on the headset, blending naturally with its passthrough mixed reality environment.

Volodin believes the technology is approaching a point where users may find it increasingly difficult to distinguish between real-world objects and Gaussian splatting-based digital reconstructions, highlighting the growing realism of immersive volumetric content.

The app debuts with more than 25 volumetric scenes created in collaboration with studios around the world, showcasing a variety of entertainment, education, and training use cases.

Highlights include:

• A four-minute musical performance by Amy May featuring spatial audio, designed to deliver an immersive, concert-like experience within the user's environment.

• Educational experiences, such as a medical joint examination tutorial and a bicycle wheel repair walkthrough, allow users to pause and inspect details from different perspectives.

• A diverse collection of scenes demonstrating the potential of 4D Gaussian Splatting (4DGS) technology across content categories ranging from entertainment to professional training.

  
  

Cross-Platform Ecosystem.

With the launch of its Apple Vision Pro app, Gracia expands an ecosystem that already includes support for Meta Quest 3, Pico 4, and PC VR devices. As adoption of next-generation VR and XR hardware continues to grow, the company is positioning its volumetric content platform to reach users across multiple immersive computing environments.

Beyond dedicated headset applications, Gracia also supports browser-based streaming through WebXR and WebGPU, enabling access to volumetric experiences directly from the web. For developers, the company provides plugins for Unity and Unreal Engine, making it easier to integrate volumetric captures into games, simulations, and virtual environments.