Babylon.js 9.22.2 Released

Babylon.js 9.22.2 lands as a small but practical maintenance release with a few notable feature additions. The biggest developer-facing changes are half-float support for Gaussian Splatting PLY data, single-file prefiltered cube container loading, and a new setStateCullFaceType path. It also fixes shared material alpha state after parsing and a batch of 43 core correctness bugs.