SuGaR: Surface-Aligned Gaussian Splatting

SuGaR addresses a major pain point: vanilla 3DGS is hard to convert into editable surface meshes for traditional 3D software. During optimization, Gaussians usually exhibit chaotic semi-transparent overlap. SuGaR adds a regularization term forcing the 3D Gaussians to flatten and adhere tightly to the underlying object surface, after which clean polygonal meshes can be extracted via classic algorithms like Poisson reconstruction. The method significantly broadens downstream usage — letting 3DGS results flow into existing game engines and animation workflows for collision and UV editing.