Bevy 0.20 brings Solari renderer to macOS

Bevy contributors released version 0.20 of the Rust game engine on crates.io, adding macOS support through Metal for Solari, its renderer that simulates light paths in real time. The release also adopts the WESL shader language and allows developers to create custom shader materials for sprites. Solari now disables its ReSTIR light-sampling method by default to improve performance. The contributors warn that this can reduce shadow quality and leave shadows missing in motion in scenes with many lights. The macOS renderer currently has no built-in denoiser.