InstantMesh: 3D generator — what it does and what you need to run it

InstantMesh is an open source 3D generator created by the Tencent ARC team. The tool tackles the image-to-3D task, meaning it reconstructs a 3D mesh from a single input image. The authors emphasize efficiency and use a sparse-view approach.

What it does

• Generates a 3D mesh from a single image.
• By default, exports the result in .obj format with vertex colors.
• When the --export_texmap flag is specified, it can export the model with a texture map; the authors warn that this will increase processing time.
• The code is written in Python and relies on the diffusers library.

What you need to run it

• Platform: as described by the author, CUDA is required. The exact recommendation is: Python>=3.10, PyTorch>=2.1.0, and CUDA>=12.1.
• Memory and storage: the largest model weights file is 1.6 GB, and all model weights files total 6.8 GB. The authors do not specify system RAM requirements.
• License: both the code and model weights are distributed under the Apache-2.0 license.
• Hosting: the code is available in the repository github.com/TencentARC/InstantMesh, and the model weights are on huggingface.co/TencentARC/InstantMesh. This is a local tool; the authors do not provide a cloud version.

Who it is for

The tool will be useful for developers and researchers who want to integrate 3D generation into their pipeline or fine-tune the model. The open Apache-2.0 license allows using the code and weights in commercial projects. The flag for exporting a texture map gives a choice between speed and detail of the final model.

It is not suitable for those looking for a ready-made cloud solution without environment setup — InstantMesh needs to be run locally on a machine with a suitable GPU and CUDA drivers. Users without experience with Python and PyTorch may also find it difficult to deploy the tool, as the authors do not provide a graphical interface.

InstantMesh occupies the niche of a fast mesh generator from a single snapshot. It does not require a cloud subscription, but it does impose specific hardware and software requirements that are worth checking before installation.