TRELLIS

Many image-to-3D services are closed products built on models you cannot inspect. TRELLIS stands out because Microsoft published the research, code and weights openly, so developers and studios can run it themselves, study how it works or build it into their own pipelines. The second generation focuses on cleaner geometry and complete material maps, which matters when assets need to drop into a game engine or renderer without heavy cleanup.

• MIT license for both the model and the code, which allows commercial experimentation
• PBR outputs that include roughness, metallic and opacity, not just a color texture
• A sparse voxel design intended to preserve sharp edges and complex topology
• A separate texturing workflow for meshes you already have
• A public Hugging Face Space for testing before installing anything

TRELLIS is best for technical artists, researchers and developers who are comfortable with Python and GPUs and want a capable open model rather than a subscription tool. A practical tip: start with the hosted demo using a clean, well-lit product shot on a plain background, and only set up a local install once you know the results suit your style. Note that unofficial sites use the TRELLIS name, so get the code from Microsoft's own GitHub and project pages.