[EN] Differences from original X‐Ray

Differences from original X-Ray

	X-Ray	OpenXRay
OS	Windows-only	Windows, Linux, macOS, OSL (Elbrus OS)
Architecture	x86 (32-bit) only	x86, x64, ARM, ARM64, E2K (Elbrus 2000)
Graphics API	DX9, DX10, DX11	DX9, DX11 (and DX11 in DX10 mode), OpenGL
Input	Keyboard and mouse only	Keyboard, mouse, work on gamepad support is in progress, you can try already
Performance	Ok for the original games, not that bad. Not enough for mods requirements and community wishes.	Many optimizations and refactorings to speed up the game
Multithreading	90-95% singlethreaded	Some parts of the code were optimized and parallelized resulting in higher FPS, but still highly singlethreaded, there's a ton of work to do
Modding	Nowadays, engine provides lesser functionality than modern modmakers need	New features for modmakers, some removed functionality was restored. We need to make a documentation, though. Help is appreciated :)
Engine Development	C++03 Visual Studio 2005, 2008 Slow compilation times	C++17 Visual Studio 2017, 2019, 2022 Fast compilation times (due to dedicated optimizations in code and due to much of improvements in Visual Studio, MSVC, MSBuild themselves)
SDK	Borland C++ Builder 6 (for game SDK)	SDK code was removed, but there are other community projects that have updated it to modern Embarcadero C++ Builder or rewritten it to ImGUI or Windows Forms, WPF
Games	Three separate engine versions for three games in the series: X-Ray 1.0 – S.T.A.L.K.E.R.: Shadow of Chernobyl X-Ray 1.5 – S.T.A.L.K.E.R.: Clear Sky X-Ray 1.6 – S.T.A.L.K.E.R.: Call of Pripyat	We aim to make one engine for all three games. Work is in progress...