In short
Vulkan support exists, but individual upscalers and games can require specific compatibility conditions.
Steps
- Confirm the Vulkan renderer is active.
- Install with the Vulkan setup for that game.
- Verify the active output in the overlay.
Facts that do not change
Reference build is OptiScaler 0.9.4. Install is a ZIP next to the main game executable; the overlay opens with Insert. Avoid online or anti-cheat protected games, and test offline first.
Frequently asked questions
What is OptiScaler?
OptiScaler is a community tool that can intercept supported in-game upscaler calls and redirect them to another supported upscaling backend, with additional tuning options.
How does OptiScaler work in a game?
The game exposes an input upscaler, OptiScaler sits between the game and the selected output backend, and the chosen output handles the final upscaling path where compatibility allows.
Does OptiScaler support DirectX 11?
Yes, DirectX 11 is supported, although the available output methods and behavior can differ from DirectX 12.
Does OptiScaler support DirectX 12?
Yes. DirectX 12 has broad support and is also the API used by experimental OptiFG functionality.
Practical Checklist
- Keep original files backed up before changing the game folder.
- Test one setting or backend at a time.
- Avoid anti-cheat protected online sessions.
- Document the working configuration before updating.
Related Guides
Continue with the related guides in the sidebar for setup, compatibility, performance, or safety topics.
- OptiScaler on Windows, Linux Proton, DX11, DX12 and Vulkan — Where OptiScaler runs and what changes per platform and API: Windows first, Linux through Proton/Wine.
- OptiScaler FAQ: the official 20 questions, answered — Standalone URLs for the official site's 20 OptiScaler questions — APIs, overlay, FSR4, Linux, anti-cheat and the manager question.
- OptiScaler on Windows — Windows is the primary desktop environment: extract the ZIP next to the game executable, launch, and press Insert.
- OptiScaler on Linux through Proton — Linux use is possible in supported configurations, commonly through Proton or Wine, but Vulkan, driver, and upscaler requirements can differ from Windows.
- OptiScaler on DirectX 11 games — DirectX 11 is supported, although the available output methods and behavior can differ from DirectX 12.