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pip install viser   •   Documentation

viser is a library for interactive 3D visualization + Python, inspired by tools like Pangolin, rviz, meshcat, and Gradio. It's designed to support applications in 3D vision and robotics.

As a standalone visualization tool, viser features include:

• Python API for visualizing 3D primitives in a web browser.
• Python-configurable GUI elements: buttons, checkboxes, text inputs, sliders, dropdowns, and more.
• A meshcat and tf-inspired coordinate frame tree.

The viser.infra backend can also be used to build custom web applications. It supports:

• Websocket / HTTP server management, on a shared port.
• Asynchronous server/client communication infrastructure.
• Client state persistence logic.
• Typed serialization; synchronization between Python dataclass and TypeScript interfaces.

You can install viser with pip:

pip install viser

To run examples:

# Clone the repository.
git clone https://github.com/nerfstudio-project/viser.git

# Install the package.
# You can also install via pip: `pip install viser`.
cd ./viser
pip install -e .

# Run an example.
pip install -e .[examples]
python ./examples/02_gui.py

After an example script is running, you can connect by navigating to the printed URL (default: http://localhost:8080).

See also: our development docs.

Point cloud visualization

Source: ./examples/07_record3d_visualizer.py

Gaussian splatting visualization

Source: WangFeng18/3d-gaussian-splatting and heheyas/gaussian_splatting_3d.

SMPLX visualizer

Source: ./example/08_smplx_visualizer.py