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Implement fix for Skyscraper Scamper Act 1 (Day) building drawing incorrectly

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DeaTh-G 2026-02-28 14:58:58 +01:00
parent 5e8695a157
commit f90d99320f
1 changed files with 23 additions and 0 deletions
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23
UnleashedRecomp/patches/video_patches.cpp
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@ -141,3 +141,26 @@ PPC_FUNC(sub_82E38650)
__imp__sub_82E38650(ctx, base);
}
// Part of the building right after exiting the tunnel after the drift turn after the first checkpoint
// is placed on an transparent mesh slot. This somehow works. Except on high-performance Windows machines,
// hinting at the fact that its related to some scheduler issue with the asset loading.
// We can fix it by detecting the asset runtime, and combining the opaque and transparent mesh slots by
// using the name offset field on the mesh group as an additional value in the array and shifting the
// opaque mesh slot's offset back by one and then correcting the offset table for this change.
// Hedgehog::Mirage::CTerrainModelData::Make
PPC_FUNC_IMPL(__imp__sub_82E39618);
PPC_FUNC(sub_82E39618)
{
if (ctx.r5.u32 == 0xA470 && XXH3_64bits(base + ctx.r4.u32, ctx.r5.u32) == 0x8474C14C113626D2)
{
PPC_STORE_U32(ctx.r4.u32 + 0x28, 7);
PPC_STORE_U32(ctx.r4.u32 + 0x2C, 0x38);
PPC_STORE_U32(ctx.r4.u32 + 0x30, 0);
PPC_STORE_U32(ctx.r4.u32 + 0x50, 0x88C4);
PPC_STORE_U32(ctx.r4.u32 + 0xA438, 0x38);
}
__imp__sub_82E39618(ctx, base);
}