Crate libredr

LibreDR is an open-source ray-tracing differentiable renderer

[Codeberg Repo] [API Document]

LibreDR uses client-server-worker structure to better utilize multiple GPUs (or even multiple nodes on a cluster).
Some code examples are under the examples/ directory.

To run server and worker under Linux:

1. Download libredr_linux_*.tar.gz under [releases].
2. Start server and worker using examples/scripts/{server,worker}.sh or with your own configuration.
   Example configurations are in examples/scripts. Use clinfo to verify OpenCL runtime.

To run a server and worker under Windows:

1. Download libredr_windows_*.zip under [releases].
2. Start server and worker using examples/scripts/{server,worker}.bat or with your own configuration.
   Example configurations are in examples/scripts.

To run the example Python codes or your own Python code

1. Download libredr-*.whl under [releases] and install using pip install, or install from [PyPI].
2. Run Python example codes examples/scripts/run_example.{sh,bat} or your own client codes.

All the examples are tested on the following platforms:

Version	OS	Device	Driver	Note
🟢v0.0.20	Debian Bookworm Linux 6.7.12+bpo-amd64	CPU: Intel Core i7-8550U	PoCL v3.1	Tested on both opencl_program = source and spirv64
🟢v0.0.20	Debian Bullseye Linux 6.7.12+bpo-amd64	GPU: Hygon DCU Z100L	Hygon Proprietary v25.04	Tested on opencl_program = source
🟢v0.0.20	Debian Bullseye Linux 6.7.12+bpo-amd64	GPU: NVIDIA GeForce RTX 3090	NVIDIA Proprietary v535.216.01	Tested on opencl_program = source
🟢v0.0.20	Debian Bullseye Linux 6.7.12+bpo-amd64	GPU: AMD Radeon RX 6700 XT	AMD ROCm AOMP v19.0-3	Tested on opencl_program = source
🟢v0.0.20	Debian Bullseye Linux 6.7.12+bpo-amd64	GPU: Intel UHD Graphics 620	Intel NEO v22.43.24595.41	Tested on opencl_program = spirv64
🟢v0.0.20	Windows 10 21H2 (OS Build 19044.5608)	GPU: AMD Radeon RX 6700 XT	AMD Proprietary v24.12.1	Unix socket and spir* are not available
🟢v0.0.20	Windows 10 21H2 (OS Build 19044.5608)	GPU: Moore Threads MTT S80	Moore Threads Proprietary v290.100.1	Tested on OpenCLOn12 v1.2404.1.0 ⚠️ with performance issue

To build from source codes for Linux, check the build scripts in examples/scripts_unix/build/. Docker is used to build manylinux-compatible wheels. For Windows, check examples/scripts_windows/build/.

Copyright (c) 2022-2025 Bohan Yu. All rights reserved.
LibreDR is free software licensed under the GNU Affero General Public License, version 3 or any later version.

Modules

camera

All camera models (Rust and Python)

light_source

All light source models (Rust and Python)

Structs

Geometry

Rust interface for Geometry

LibreDR

Rust interface for LibreDR client

PyGeometry

Python interface for Geometry

PyLibreDR

Python interface for LibreDR client

Functions

py_libredr

Initialize Python module.