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Add player 3D camera HFR patches.

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This commit is contained in:
Skyth
2024-11-05 13:37:45 +03:00
parent 90b60ebc8d
commit 8ff30ab383
2 changed files with 135 additions and 11 deletions
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UnleashedRecomp/game.cpp
+50 -10
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@@ -246,16 +246,6 @@ PPC_FUNC(sub_825197C0)
__imp__sub_825197C0(ctx, base);
}
void HighFrameRateDeltaTimeFixMidAsmHook(PPCRegister& f1)
{
// Having 60 FPS threshold ensures we still retain
// the original game behavior when locked to 30/60 FPS.
constexpr double threshold = 1.0 / 60.0;
if (f1.f64 < threshold)
f1.f64 = threshold;
}
void GetStageIDMidAsmHook(PPCRegister& r5)
{
m_pStageID = *(xpointer<const char>*)g_memory.Translate(r5.u32);
@@ -331,3 +321,53 @@ PPC_FUNC(sub_82608E60)
}
#pragma endregion
#pragma region HFR Patches
void HighFrameRateDeltaTimeFixMidAsmHook(PPCRegister& f1)
{
// Having 60 FPS threshold ensures we still retain
// the original game behavior when locked to 30/60 FPS.
constexpr double threshold = 1.0 / 60.0;
if (f1.f64 < threshold)
f1.f64 = threshold;
}
void CameraDeltaTimeFixMidAsmHook(PPCRegister& dest, PPCRegister& src)
{
dest.f64 = src.f64 / 30.0;
}
void CameraDeltaTimeFixMidAsmHook(PPCRegister& dest)
{
dest.f64 /= 30.0;
}
static double ComputeLerpFactor(double t, double deltaTime)
{
// This type of lerp still falls behind when
// playing catch with a constantly moving position.
// The bias helps with approximately bringing it closer.
double fps = 1.0 / deltaTime;
double bias = t * 60.0;
return 1.0 - pow(1.0 - t, (30.0 + bias) / (fps + bias));
}
void CameraLerpFixMidAsmHook(PPCRegister& t, PPCRegister& deltaTime)
{
t.f64 = ComputeLerpFactor(t.f64, deltaTime.f64);
}
void CameraTargetSideOffsetLerpFixMidAsmHook(PPCVRegister& v13, PPCVRegister& v62, PPCRegister& deltaTime)
{
float factor = float(ComputeLerpFactor(double(v13.f32[0] * v62.f32[0]), deltaTime.f64));
for (size_t i = 0; i < 4; i++)
{
v62.f32[i] = factor;
v13.f32[i] = 1.0f;
}
}
#pragma endregion