Skip to content

Fix invisible weapon particles at high FPS #4149

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 3 commits into from
Apr 8, 2025
Merged

Fix invisible weapon particles at high FPS #4149

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
7333bfc
Fix bug
FileEX Apr 8, 2025
fe0c732
Update CMultiplayerSA_FrameRateFixes.cpp
FileEX Apr 8, 2025
4b0b666
Merge branch 'master' into bugfix/framerate_wep_particles
Dutchman101 Apr 8, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
34 changes: 34 additions & 0 deletions Client/multiplayer_sa/CMultiplayerSA_FrameRateFixes.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -578,6 +578,38 @@ static void _declspec(naked) HOOK_CTaskSimpleSwim__ProcessEffectsBubbleFix()
}
}

// Fixes invisible weapon particles (extinguisher, spraycan, flamethrower) at high FPS
#define HOOKPOS_CWeapon_Update 0x73DC3D
#define HOOKSIZE_CWeapon_Update 5
static constexpr std::uintptr_t RETURN_CWeapon_Update = 0x073DC42;
static void __declspec(naked) HOOK_CWeapon_Update()
{
_asm
{
// timeStep / kOriginalTimeStep
fld ds:[0xB7CB5C] // CTimer::ms_fTimeStep
fdiv kOriginalTimeStep

mov eax, [esi+10h] // m_timeToNextShootInMS
mov ebx, ds:[0xB7CB84] // CTimer::m_snTimeInMilliseconds

sub eax, ebx // m_timeToNextShootInMS - CTimer::m_snTimeInMilliseconds

push eax
fild dword ptr [esp]
add esp, 4

fmul st(0), st(1) // (m_timeToNextShootInMS - CTimer::m_snTimeInMilliseconds) * (timeStep / kOriginalTimeStep)
fadd st(0), ebx // + m_snTimeInMilliseconds
fistp [esi+10h]

mov eax, ebx

xor ebx, ebx
jmp RETURN_CWeapon_Update
}
}

void CMultiplayerSA::InitHooks_FrameRateFixes()
{
EZHookInstall(CTaskSimpleUseGun__SetMoveAnim);
Expand Down Expand Up @@ -619,4 +651,6 @@ void CMultiplayerSA::InitHooks_FrameRateFixes()
EZHookInstall(CVehicle__AddExhaustParticles);
EZHookInstall(CTaskSimpleSwim__ProcessEffects);
EZHookInstall(CTaskSimpleSwim__ProcessEffectsBubbleFix);

EZHookInstall(CWeapon_Update);
}
Loading