Gracia: 4DGS viewer

Gracia brings together more than 11 years of GPU engineering experience. Co-founder and CTO Andrey Volodin was the lead developer of cocos2d-objc, later joined Prisma AI as an early employee, and led its mobile development, bringing on-device neural networks to millions of people. He also founded netmonet, which became one of the region’s largest fintech infrastructures.

Why the team built Gracia

Before Gracia existed, Andrey spent his evenings experimenting with neural rendering on consumer hardware. He first ran neural radiance fields, or NeRFs, on an iPhone using Metal, then brought them to a standalone Quest headset with a native OpenXR Vulkan renderer. When Gaussian splatting emerged, he built a real-time splat renderer for VR and shared a demo that quickly spread through developer and creator communities. The response inspired a ‘YouTube for volumetric video,’ but the team soon learned that creation, not distribution, was the real bottleneck. Together with co-founder and CEO Georgii Vysotskii, Andrey shifted Gracia toward training and processing 4D Gaussian splats with stable motion, high visual fidelity, and file sizes small enough to stream.