FastPBR v1.0 is a release file of the Minecraft shader FastPBR Shader, made for Minecraft 1.19.4, 1.18.2, 1.19.2. It was published on April 27, 2023 and is 1 MB in size. For the full description, screenshots and every other version, visit the FastPBR Shader shader page.
How to install: Put the .zip into .minecraft/shaderpacks (do not extract it) and select it under Options → Video Settings → Shader Packs. Needs Iris or OptiFine.