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Fix the Gaia Temple pedestal flashing black. (#334)

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Skyth (Asilkan) 2025-02-09 13:16:03 +03:00 • committed by GitHub
parent 7f108285fe
commit 138d9b616d
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24
UnleashedRecomp/patches/video_patches.cpp
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@ -113,3 +113,27 @@ PPC_FUNC(sub_8260BBF8)
SetDefaultMaterialParameters(reinterpret_cast<GuestDevice*>(base + PPC_LOAD_U32(PPC_LOAD_U32(ctx.r4.u32))));
__imp__sub_8260BBF8(ctx, base);
}
// The pedestal in Gaia Temple is placed on an opaque mesh slot, despite using additive blending.
// This somehow works. Except when the delta time is too stable, it flashes black for one frame.
// We can fix it by detecting the asset runtime, and swapping the mesh slots to transparent by hand.
// Hedgehog::Mirage::CModelData::Make
PPC_FUNC_IMPL(__imp__sub_82E38650);
PPC_FUNC(sub_82E38650)
{
if (ctx.r5.u32 == 0xBB90 && XXH3_64bits(base + ctx.r4.u32, ctx.r5.u32) == 0xB524C8C3B80C3F54)
{
// Mesh Count
std::swap(
*reinterpret_cast<uint32_t*>(base + ctx.r4.u32 + 0x18),
*reinterpret_cast<uint32_t*>(base + ctx.r4.u32 + 0x20));
// Mesh Offset
std::swap(
*reinterpret_cast<uint32_t*>(base + ctx.r4.u32 + 0x1C),
*reinterpret_cast<uint32_t*>(base + ctx.r4.u32 + 0x24));
}
__imp__sub_82E38650(ctx, base);
}