VKD3D_CONFIG
Comma-separated switches for vkd3d-proton, the Direct3D 12 layer. Common values include dxr and dxr11 for raytracing, no_upload_hvv to avoid host-visible VRAM, and single_queue.
PROTON_ENABLE_NVAPI
PROTON_HIDE_NVIDIA_GPU
PROTON_LOG
PROTON_VKD3D_HEAP
VKD3D_FEATURE_LEVEL
RADV_PERFTEST
PROTON_ENABLE_WAYLAND
PROTON_ENABLE_NGX_UPDATER
VKD3D_DEBUG
DXVK_ASYNC
VK_ICD_FILENAMES
VKD3D_DISABLE_EXTENSIONS