A developer of Iris showed that Horizon's shader pack code was written from
Iris's source. This removes it: the horizon-shaderpack crate, Java pack
loading and its render stages, Horizon's own WGSL packs and the example
packs, the Shader Packs screen and its option, the launcher's shader pack
browsing and installing, and the docs about them. Shader packs may come
back later as a clean-room rewrite.
The vanilla renderer and its post-processing (resolution scale, FXAA) are
unchanged. Options files that name a pack load and drop the key; the
launcher reads manifests that list a shader pack, and files in
`shaderpacks/` are never deleted.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
docs/mods.md: the sandboxed WebAssembly runtime, capabilities, hooks, budgets,
authoring, versions, multiplayer and distribution, with measured hook costs.
docs/research/java-mod-compat.md: why Fabric/NeoForge jars cannot run, data
import, which mods to port natively first, a porting guide outline.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Ludovic Marie