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Helix4D introduces a framework for high-quality dynamic 4D mesh generation from video by extending Trellis2 with cross-frame attention and a 4D temporal encoding that repurposes redundant spatial RoPE bands without adding parameters.
Pixal3D is a high-fidelity single-image-to-3D model by TencentARC and Microsoft, which explicitly lifts pixel features into 3D via back-projection for near-reconstruction-level geometry and PBR textures. The model is accepted to SIGGRAPH 2026, with inference code and demo available.