optiscaler/OptiScaler

What it solves

OptiScaler allows gamers to swap out the built-in temporal upscaling technology in a game for a different one. This is particularly useful for users who want to use a specific upscaler (like XeSS or FSR) on hardware that might not natively support the game's default option, or for those who want to fine-tune the visual quality and performance of their upscaling experience.

How it works

OptiScaler acts as a middleware layer that intercepts "inputs" (the upscaler calls the game makes based on its settings) and redirects them to a chosen "output" (the actual upscaling backend used to render the frame). It supports DirectX 11, DirectX 12, and Vulkan APIs. Additionally, it includes an experimental feature called OptiFG for DX12 games to enable or replace frame generation.

Who it’s for

PC gamers who want more flexibility over which upscaling and frame generation technologies (DLSS, FSR, XeSS) they use in supported games, regardless of their GPU manufacturer.

Highlights

• Cross-Vendor Support: Enables the use of XeSS, FSR 2/3/4, and DLSS across various APIs.
• Frame Generation: Includes OptiFG for experimental frame generation in DX12 games, including support for FSR3-FG, XeFG, and FSR4-FG.
• Extensive Customization: Provides an in-game overlay for tweaking RCAS, MAS, output scaling, and DLSS presets.
• Integration: Bundles tools like Fakenvapi for latency reduction (Reflex, Anti-Lag 2) and Nukem's FSR3-FG mod.