Microsoft Open-Sources TRELLIS.2 — 4B Image-to-3D Model Generating PBR Assets in Seconds

Microsoft / GitHub·medium signal

Microsoft released TRELLIS.2, a 4B-parameter open-source model that converts images into high-fidelity 3D assets with PBR materials at up to 1536³ resolution. Using a novel 'O-Voxel' field-free sparse voxel structure, it generates a 512³ model in ~3 seconds on an H100. Full training code is available, enabling fine-tuning on custom datasets. Outputs .glb files compatible with Blender, Unity, and Unreal — a significant step for game dev, e-commerce, and VR workflows.