Vulkan

For Vulkan support Gentoo has a basic package which provides  shared object file.

USE flags
To compile the open source Vulkan drivers the  USE flag must be enabled for. The following list shows the vulkan supported GPU drivers in Mesa:

The following alternative closed-source drivers exist. These also provideo Vulkan support:


 * AMDGPU-PRO, official closed-source driver for AMD hardware.
 * NVidia/nvidia-drivers, official closed-source driver for Nvidia hardware

You can check the (inofficial) Vulkan hardware database for a list of detailed GPU hardware capabilities for Vulkan.