SPARSE-UP: LEARNABLE SPARSE UPSAMPLING FOR 3D GENERATION WITH HIGH-FIDELITY TEXTURES
The creation of high-fidelity 3D assets is often hindered by a 'pixel-level pain point': the loss of high-frequency details. Existing methods often trade off one aspect for another: either sacrificing cross-view consistency, resulting in torn or drifting textures, or remaining trapped by the resolut…