SamandClaude Fable 5
994be22f5c
- lava renders outside Blackrock at last: the mesher was dropping every open-world lava and slime surface, and 28 river mouths get their missing sea back in the same sweep - Undercity's broken corridor returns, geometry and color both: a one-byte file overrun dropped the whole room, and a paint job one record short was being thrown away entire - collision goes one-sided like the real client: walls stop you from the front and let you pass from behind - the Booty Bay entrance is wood and rope again instead of a black cutout, glass picks up a real reflection, and models far from the map's center stop trembling Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
85 lines
3.3 KiB
Rust
85 lines
3.3 KiB
Rust
//! Difftest the M2 **generated-texcoord** (environment-map) detection against real art — the
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//! `texCoordSet(+0x12) → texture_unit_lookup(0x9c)` two-hop the reference gates at `0x70b8bd`
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//! (`<= 2` = a vertex UV channel, higher = a generated env coordinate).
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//!
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//! Both halves matter, and only real art proves them. The Deeprun Tram's glass tube is the
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//! **positive**: it authors `texture_unit_lookup = [-1]` and, precisely because the runtime is
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//! meant to supply the coordinates, leaves **every one of its 330 vertices at exactly (0,0)** — so
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//! a renderer that misses the flag paints the whole tube in one corner texel of a reflection sheet
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//! (`AKGNOMEREFLECT.BLP` texel 0,0 = 225,221,142, doubled by the batch's Mod2x blend: the flat
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//! yellow). The weapon rack is the **discriminator**: the same model carries both kinds, so a
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//! parse that simply answered "env" everywhere would pass the first assert and fail here.
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//!
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//! Skips (passes) when the client isn't present at `<repo>/WoW/Data`.
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use std::path::PathBuf;
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use benilla_formats::{load_m2_mesh, open_chain};
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fn vanilla_data_dir() -> PathBuf {
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PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../../WoW/Data")
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}
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#[test]
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fn tram_glass_batches_generate_their_texcoords() {
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let data = vanilla_data_dir();
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if !data.is_dir() {
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eprintln!("skipping: vanilla client not present at {}", data.display());
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return;
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}
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let mut chain = open_chain(&data).expect("open vanilla patch chain");
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let subs = load_m2_mesh(
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&mut chain,
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"World\\Generic\\Gnome\\Passive Doodads\\GnomeMachine\\GnomeSubwayGlass.m2",
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)
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.expect("load GnomeSubwayGlass");
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assert!(!subs.is_empty(), "the glass tube has render batches");
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assert!(
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subs.iter().all(|s| s.env_map),
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"every GnomeSubwayGlass batch authors texture_unit_lookup = -1 (generated texcoords)"
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);
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// The half that makes the flag load-bearing rather than cosmetic: there is no fallback here,
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// because the authored UVs carry no information at all.
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for s in &subs {
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assert!(
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s.uvs.iter().all(|uv| uv[0] == 0.0 && uv[1] == 0.0),
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"an env-mapped batch's authored UVs are degenerate — the runtime supplies them"
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);
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}
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}
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#[test]
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fn weapon_rack_splits_env_from_uv_batches() {
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let data = vanilla_data_dir();
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if !data.is_dir() {
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eprintln!("skipping: vanilla client not present at {}", data.display());
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return;
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}
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let mut chain = open_chain(&data).expect("open vanilla patch chain");
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let subs = load_m2_mesh(
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&mut chain,
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"World\\Generic\\Human\\Passive Doodads\\WeaponRacks\\GeneralWeaponrack01.m2",
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)
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.expect("load GeneralWeaponrack01");
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// `texture_unit_lookup = [0, -1]`: the rack/blade batches name UV channel 0, the two
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// ARMORREFLECT sheen layers (`texCoordSet 1`) generate theirs.
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let env: Vec<&str> = subs
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.iter()
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.filter(|s| s.env_map)
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.filter_map(|s| s.texture.as_deref())
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.collect();
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assert!(
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!env.is_empty()
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&& env
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.iter()
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.all(|t| t.to_ascii_lowercase().contains("armorreflect")),
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"only the ARMORREFLECT sheen layers env-map on the rack, got {env:?}"
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);
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assert!(
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subs.iter().any(|s| !s.env_map),
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"the rack's body and blade batches read their authored UVs"
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);
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}
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