bg3fgvk - Vulkan DLSS FG - Compatible with DLSS5

Description

bg3fgvk adds NVIDIA DLSS Frame Generation (x2, x3 or x4) to Baldur's Gate 3 running in Vulkan mode. It is free and open source.

The game's own DLSS Super Resolution already produces the depth and motion vectors that frame generation needs; bg3fgvk hands those to NVIDIA Streamline, and the NVIDIA driver generates and paces the extra frames. There is no replacement upscaler, no menu of its own, no account and no key. A 30-35 fps scene at 1440p shows at roughly 120-140 fps with x4 on an RTX 50 card.

RTX 30 cards reach x2 with one extra community mod. See the RTX 30 section below.

It runs alongside the Baldur's Gate 3 Script Extender and mods that draw their UI through it, including Mod Configuration Menu. It also runs on Linux through Proton.

It is also compatible with DLSS 5 Neural Rendering through the OptiScaler DLSSNR fork. See the DLSS 5 section below.

Source code and issue tracker: github.com/thierbig/bg3fgvk

Installation instructions

• []Install Native Mod Loader if you do not have it: manual download, extract its bin folder over the game's bin folder, let it replace bink2w64.dll. Make sure bin\NativeMods\ exists.[/]

  []Extract the contents of the bg3fgvk zip into the game's bin folder (the one with bg3.exe). Merge the NativeMods folder when asked. You end up with bin\NativeMods\fgvk.dll and bin\NativeMods\Streamline\ (the NVIDIA Streamline runtime, leave it there).[/]

  []In the game's Video settings: renderer Vulkan, Upscaling set to DLSS (any quality, or DLAA). In Windows: Settings > System > Display > Graphics > Default graphics settings > Hardware-accelerated GPU scheduling ON.[/]