Back in 2022 Intel announced OpenPGL as an open-source library for path guiding to help enhance the quality of path-based renderers. With time Blender began making use of OpenPGL and other industry interest and adoption. Unfortunately, Intel quietly ended work on OpenPGL in 2025 but has now fortunately found a new home.

The Apache 2.0 licensed Intel Open Path Guiding Library was started as part of the Intel (oneAPI) Rendering Toolkit and found use by not only Blender but also the likes of V-RAY, Houdini Karma, Illumination, and Disney Hyperion. But amid cost-cutting at Intel over the course of 2025, OpenPGL development ceased as one of many open-source projects Intel cut back on.