OpenSplat4D
YuanBaoSMadLab/OpenSplat4D
C++
Unreal Engine 5 plugin for real-time 3D and 4D Gaussian Splatting (3DGS / 4DGS). Supports Spacetime Gaussians, keyframe 4DGS and Fudan native 4DGS (dual-quaternion 4D rotation + spherindrical harmonics), with Nanite-style cluster LOD, GPU sort/cull pipeline and a dedicated 4D player editor.