MoonRay is an open source renderer developed by DreamWorks Animation.

[1] It is continuously under active development, boasting an extensive library of production-tested, physically based materials.

MoonRay was first used on the short film Bilby (2018),[2][3] and made its feature debut on How to Train Your Dragon: The Hidden World (2019).

[4] DreamWorks Animation announced their intention to open source the renderer at SIGGRAPH 2022.

The source code was officially made to the public released on GitHub on March 15, 2023 under the Apache 2.0 License.