Homefront (2011) — Free Camera Mod

A DLL mod that adds a detachable free camera to Homefront (2011, Steam version). Fly through levels, explore out-of-bounds areas, take screenshots from any angle.

Building

Requirements: Visual Studio 2022, CMake 3.20+.

git clone https://github.com/TsudaKageyu/minhook.git third_party/minhook
mkdir build
cd build
cmake .. -A Win32
cmake --build . --config Release

The -A Win32 flag is mandatory — the game is 32-bit.

Output: build/Release/homefront_freecam.dll and build/Release/injector.exe.

Usage

1. Launch Homefront and load into a level.
2. Place injector.exe and homefront_freecam.dll in the same folder.
3. Run injector.exe as Administrator.
4. The injector finds the game process and loads the DLL automatically.

Controls

Key	Action
F9	Toggle free camera on/off
F10	Unload the mod
W / A / S / D	Move forward / left / back / right
Arrow keys	Rotate camera
Q / Space	Move up
E / Ctrl	Move down
Shift	Fast movement (4x)
Alt	Slow movement (0.2x)

When free camera is active, the player character is frozen in place. Press F9 again to return to normal gameplay.

How It Works

The mod hooks the native GetActorEyesViewPoint function (VA 0x00A52070) which the engine calls every frame to compute the player's view position and rotation.

When freecam is enabled:

• The original function runs first (computing the normal view).
• The output buffers (FVector location, FRotator rotation) are overwritten with freecam values computed from keyboard input.
• The pawn's world position is frozen by writing back the saved coordinates each frame.

The hook is installed via MinHook using the standard __thiscall → __fastcall detour pattern for x86.

Compatibility

• Tested on: Homefront Steam version (HOMEFRONT.exe 1.0.0.1)
• Architecture: x86 (32-bit DLL)
• ASLR: The game loads at a fixed base (0x00400000, delta = 0), so static addresses work without relocation.

If the game crashes on inject, the hook address 0x00A52070 may not match your executable version. You would need to locate GetActorEyesViewPoint via reverse engineering (look for the function that calls vtable[0x458] on the player pawn and reads location from this+0xBC/0xC0/0xC4).

Troubleshooting

Problem	Solution
Build error "not x86"	Pass -A Win32 to cmake
Access Denied on inject	Run injector.exe as Administrator
Game crashes immediately	Increase STARTUP_DELAY_MS in dllmain.cpp to 5000
Camera doesn't respond	Ensure you're on a gameplay level, not in a menu

Project Structure

src/
├── dllmain.cpp     DLL entry point, input polling thread (F9/F10)
├── freecam.h/cpp   Camera math: position, rotation, input handling
├── hooks.h/cpp     MinHook detour on GetActorEyesViewPoint
└── input.h/cpp     Keyboard state via GetAsyncKeyState
injector/
└── injector.cpp    CreateRemoteThread + LoadLibraryW injector
CMakeLists.txt      Build configuration (Win32, static CRT)

License

This project is provided as-is for educational and single-player modding purposes. MinHook is used under the BSD 2-Clause license.