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Fix XTensionFOVFix for non-Steam version - TODO: test on Steam #58

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Fix XTensionFOVFix for non-Steam version - TODO: test on Steam #58

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b31b7c0
Fix XTensionFOVFix for non-Steam version - TODO: test on Steam
Cheaterman May 1, 2026
cac3e6b
Fix FOV when/after boosting in X-BTF and X-Tension
Cheaterman May 2, 2026
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71 changes: 68 additions & 3 deletions source/fixes/XBeyondTheFrontierFOVFix/dllmain.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -189,6 +189,8 @@ bool DetectGame()
}

static SafetyHookMid CameraFOVInstructionHook{};
static SafetyHookMid ProjectionMatrixPreHook{};
static SafetyHookMid ProjectionMatrixPostHook{};

int32_t ConvertFOV(int32_t baseFOV, double baseAR, double newAR)
{
Expand All @@ -210,7 +212,11 @@ void FOVFix()
fAspectRatioScale = fNewAspectRatio / fOldAspectRatio;

std::uint8_t* CameraFOVInstructionScanResult = Memory::PatternScan(exeModule, "DB 05 ?? ?? ?? ?? DC 0D");
if (CameraFOVInstructionScanResult)
if (!CameraFOVInstructionScanResult)
{
spdlog::error("Failed to locate camera FOV instruction memory address.");
}
else
{
spdlog::info("Camera FOV Instruction: Address is {:s}+{:x}", sExeName.c_str(), CameraFOVInstructionScanResult - (std::uint8_t*)exeModule);

Expand All @@ -227,10 +233,69 @@ void FOVFix()
FPU::FILD(iNewFOV);
});
}

std::uint8_t* ProjectionSetTransformScanResult = Memory::PatternScan(
exeModule,
"8B 51 64 56 6A 03 50 FF D2"
);

if (!ProjectionSetTransformScanResult)
{
spdlog::error("Failed to locate projection matrix SetTransform call.");
}
else
{
spdlog::error("Failed to locate camera FOV instruction memory address.");
return;
std::uint8_t* ProjectionSetTransformPreHookAddress =
ProjectionSetTransformScanResult + 3;

std::uint8_t* ProjectionSetTransformPostHookAddress =
ProjectionSetTransformScanResult + 9;

spdlog::info(
"Projection matrix SetTransform call: Address is {:s}+{:x}",
sExeName.c_str(),
ProjectionSetTransformPreHookAddress - reinterpret_cast<std::uint8_t*>(exeModule)
);

static float fOriginalProjectionM00 = 0.0f;
static float fOriginalProjectionM11 = 0.0f;
static float* pCurrentProjectionMatrix = nullptr;

ProjectionMatrixPreHook = safetyhook::create_mid(
ProjectionSetTransformPreHookAddress,
[](SafetyHookContext& ctx)
{
pCurrentProjectionMatrix = reinterpret_cast<float*>(ctx.esi);

if (pCurrentProjectionMatrix == nullptr)
{
return;
}

fOriginalProjectionM00 = pCurrentProjectionMatrix[0];
fOriginalProjectionM11 = pCurrentProjectionMatrix[5];

const float projectionScale = 1.0f / fAspectRatioScale;

pCurrentProjectionMatrix[0] *= projectionScale;
pCurrentProjectionMatrix[5] *= projectionScale;
}
);

ProjectionMatrixPostHook = safetyhook::create_mid(
ProjectionSetTransformPostHookAddress,
[](SafetyHookContext& ctx)
{
if (pCurrentProjectionMatrix == nullptr)
{
return;
}

pCurrentProjectionMatrix[0] = fOriginalProjectionM00;
pCurrentProjectionMatrix[5] = fOriginalProjectionM11;
pCurrentProjectionMatrix = nullptr;
}
);
}
}
}
Expand Down
73 changes: 69 additions & 4 deletions source/fixes/XTensionFOVFix/dllmain.cpp
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -189,6 +189,8 @@ bool DetectGame()
}

static SafetyHookMid CameraFOVInstructionHook{};
static SafetyHookMid ProjectionMatrixPreHook{};
static SafetyHookMid ProjectionMatrixPostHook{};

int32_t ConvertFOV(int32_t baseFOV, double baseAR, double newAR)
{
Expand All @@ -209,8 +211,12 @@ void FOVFix()

fAspectRatioScale = fNewAspectRatio / fOldAspectRatio;

std::uint8_t* CameraFOVInstructionScanResult = Memory::PatternScan(exeModule, "DB 05 ?? ?? ?? ?? DC 0D ?? ?? ?? ?? D9 C9");
if (CameraFOVInstructionScanResult)
std::uint8_t* CameraFOVInstructionScanResult = Memory::PatternScan(exeModule, "DB 05 ?? ?? ?? ?? DC 0D");
if (!CameraFOVInstructionScanResult)
{
spdlog::error("Failed to locate camera FOV instruction memory address.");
}
else
{
spdlog::info("Camera FOV Instruction: Address is {:s}+{:x}", sExeName.c_str(), CameraFOVInstructionScanResult - (std::uint8_t*)exeModule);

Expand All @@ -227,10 +233,69 @@ void FOVFix()
FPU::FILD(iNewFOV);
});
}

std::uint8_t* ProjectionSetTransformScanResult = Memory::PatternScan(
exeModule,
"8B 51 64 56 6A 03 50 FF D2"
);

if (!ProjectionSetTransformScanResult)
{
spdlog::error("Failed to locate projection matrix SetTransform call.");
}
else
{
spdlog::error("Failed to locate camera FOV instruction memory address.");
return;
std::uint8_t* ProjectionSetTransformPreHookAddress =
ProjectionSetTransformScanResult + 3;

std::uint8_t* ProjectionSetTransformPostHookAddress =
ProjectionSetTransformScanResult + 9;

spdlog::info(
"Projection matrix SetTransform call: Address is {:s}+{:x}",
sExeName.c_str(),
ProjectionSetTransformPreHookAddress - reinterpret_cast<std::uint8_t*>(exeModule)
);

static float fOriginalProjectionM00 = 0.0f;
static float fOriginalProjectionM11 = 0.0f;
static float* pCurrentProjectionMatrix = nullptr;

ProjectionMatrixPreHook = safetyhook::create_mid(
ProjectionSetTransformPreHookAddress,
[](SafetyHookContext& ctx)
{
pCurrentProjectionMatrix = reinterpret_cast<float*>(ctx.esi);

if (pCurrentProjectionMatrix == nullptr)
{
return;
}

fOriginalProjectionM00 = pCurrentProjectionMatrix[0];
fOriginalProjectionM11 = pCurrentProjectionMatrix[5];

const float projectionScale = 1.0f / fAspectRatioScale;

pCurrentProjectionMatrix[0] *= projectionScale;
pCurrentProjectionMatrix[5] *= projectionScale;
}
);

ProjectionMatrixPostHook = safetyhook::create_mid(
ProjectionSetTransformPostHookAddress,
[](SafetyHookContext& ctx)
{
if (pCurrentProjectionMatrix == nullptr)
{
return;
}

pCurrentProjectionMatrix[0] = fOriginalProjectionM00;
pCurrentProjectionMatrix[5] = fOriginalProjectionM11;
pCurrentProjectionMatrix = nullptr;
}
);
}
}
}
Expand Down